BISON Catalog

WORKHOLDING

CONTENTS

BISON WORKHOLDING CHUCKS AND ADAPTERS

CHUCK SELECTION AND APPLICATION GUIDE13 Manual Chuck Selection Process14 Application of Chucks and Centers15 Determining the Proper Spindle Type and Size17 Self-Centering Scroll Chuck Accuracy18 Clamping Ranges for Self-Centering Scroll Chucks19 Safe Operating Parameters20 Lathe Chuck Safety Conditions

SET-TRU™ CHUCKS21 2, 3, 4, and 6-Jaw SET-TRU Scroll Chuck Features and Benefits22 3, 4, and 6-Jaw SET-TRU Scroll Chuck Clamping Ranges23 3-Jaw SET-TRU Scroll Chucks23 2-Jaw SET-TRU Scroll Chucks24 6-Jaw SET-TRU Scroll Chucks24 4-Jaw SET-TRU Scroll Chucks25 2, 3, 4, and 6-Jaw SET-TRU Scroll Chuck Parts List and Dimensions26 2, 3, 4, and 6-Jaw SET-TRU Scroll Chuck Adapter Plate and Chuck Mounting Principles26 3-Jaw Chuck T-slot Dimensions for 20" and 25" Diameter Chucks

Adapters and Base Plates27 Fully Machined Type A Steel Adapters for SET-TRU Chucks28 Fully Machined Type D Steel Adapters for SET-TRU Chucks29 Fully Machined Threaded Steel Adapters for SET-TRU Chucks30 Fully Machined Type C Steel Adapters for SET-TRU Chucks31 Fully Machined Type L Steel Adapters for SET-TRU Chucks32 Chuck Base Plates for Rotary Tables32 Chuck Base Plates for Milling Machine Tables32 Fully Machined 5C Steel Adapters for 3 and 6-Jaw SET-TRU Chucks

Parts33 Hard Master Jaws for 2, 3, 4, and 6-Jaw SET-TRU Chucks33 Hard Top Jaws for 2, 3, 4, and 6-Jaw SET-TRU Chucks34 I.D. Hard Solid Jaws for 3, 4, and 6-Jaw SET-TRU Chucks34 O.D. Hard Solid Jaws for 3, 4, and 6-Jaw SET-TRU Chucks35 Soft Top Jaws for 2, 3, 4, and 6-Jaw SET-TRU Chucks35 Soft Solid Jaws for 3, and 4-Jaw SET-TRU Chucks36 Spare Parts for 2, 3, 4, and 6-Jaw Chucks with Forged Steel Body36 Fine Adjustment Screws37 Mounting Bolts for Hard and Soft Top Jaws37 Camlock Studs and Set Screws37 Chuck Mounting Bolts37 Type C, DIN Studs

1Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

CONTENTS

PRECISION CHUCKS38 3 and 4-Jaw Precision Self-Centering Scroll Chuck Features and Benefits39 3-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws39 3-Jaw Scroll Chucks with Two Sets of Hard Solid Jaws39 4-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws40 Principal Dimensions for Back Mounting 3 and 4-Jaw Scroll Chucks40 Clamping Ranges for 3 and 4-Jaw Chucks with Two-Piece Reversible Jaws and Solid Jaws40 3-Jaw Chuck T-Slot Dimensions for 20” and 25” Diameter Chucks Only41 3-Jaw, Type A1/A2, Direct Mount Self-Centering Scroll Chucks42 3-Jaw, Type D, Direct Mount Self-Centering Scroll Chucks

Adapters43 Semi-Finished Threaded Adapters for Threaded Spindles43 Fully Machined Threaded Adapters for Threaded Spindles44 Semi-Machined and Fully Machined Type D1 Adapters45 Semi-Machined and Fully Machined Type A1/A2 Adapters46 Fully Machined Type L Steel Adapters47 Installation Instructions for Mounting Back Plates onto Spindles

Parts48 Hard Master Jaws for 3 and 4-Jaw Steel Scroll Chucks48 Hard Top Jaws for 3 and 4-Jaw Steel Scroll Chucks49 I.D. Hard Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks49 O.D. Hard Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks50 Soft Top Jaws for 3 and 4-Jaw Steel Scroll Chucks50 Soft Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks51 Spare Parts for 3 and 6-Jaw Chucks with Forged Steel Body51 Extended and Standard Length Wrenches51 Heavy Duty Jaws for Universal and Precision Scroll Lathe Chucks

UNIVERSAL CHUCKS52 2, 3, and 4-Jaw Universal Self-Centering Scroll Chucks Features and Benefits53 3-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws53 3-Jaw Scroll Chucks with Two Sets of Hard Solid Jaws54 2-Jaw Scroll Chucks with Soft Top Reversible Jaws54 4-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws54 4-Jaw Scroll Chucks with Two Sets of Hard Solid Jaws55 Clamping Ranges for 3 and 4-Jaw Chucks with Two-Piece Jaws and Solid Jaws55 Principal Dimensions for 2-Jaw Chucks (Back Mounting)55 Principal Dimensions for 3 and 4-Jaw Chucks (Back Mounting)56 3-Jaw Chucks, Type A1 and A2, Direct Mount57 3-Jaw Camlock Type D1, Direct Mount with Solid Jaws57 Camlock Studs with Inch and Metric Threads and Set Screws for Type D1

Direct Mount Chucks58 3-Jaw Camlock Type D1, Direct Mount with Two-Piece Jaws59 3-Jaw Type L Direct Mount with Two-Piece Jaws60 3-Jaw Threaded Direct Mount

2 Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

CONTENTS

UNIVERSAL CHUCKS (continued)Adapters

61 Installation Instructions for Mounting Back Plates onto Spindles62 Principal Mounting Dimensions for Bison Adapters62 Rough Adapters for Scroll Chucks with Threaded Spindles63 Semi-Finished Threaded Adapters for Threaded Spindles63 Fully Machined Threaded Adapters for Plain Back Self-Centering Chucks64 Semi-Machined and Fully Machined D1 Adapters65 Semi-Machined and Fully Machined A1/A2 Adapters66 Fully Machined L Type Steel Adapters67 Type C, DIN 55027 Spindle Adapters67 DIN Studs

Parts68 Hard Master Jaws for 3 and 4-Jaw Steel Scroll Chucks69 Hard Top Jaws for 3 and 4-Jaw Steel Scroll Chucks69 Heavy Duty Jaws for Universal and Precision Scroll Lathe Chucks:70 I.D. Hard Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks70 O.D. Hard Solid Jaws for 3 and 4- Jaw Steel Scroll Chucks71 Soft Top Jaws for 3 and 4-Jaw Steel Scroll Chucks71 Soft Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks72 Spare Parts for 3 and 6-Jaw Chucks with Forged Steel Body72 Mounting Bolts for Hard and Soft Top Jaws72 Extended and Standard Length Wrenches

LARGE AND EXTRA LARGE THRU-HOLE, 3-JAW,SELF-CENTERING CHUCKS73 3-Jaw Self-Centering Steel Body Plain Back Scroll Chucks with Large Thru-Hole73 3-Jaw Self-Centering Semi-Steel Body Plain Back Scroll Chucks with Large Thru-Hole73 Spare Parts for 3-Jaw Self-Centering Plain Back Scroll Chucks with Large Thru-Hole74 3-Jaw Self-Centering Semi-Steel Body Plain Back Scroll Chucks with Extra Large

Thru-Hole74 Spare Parts for 3-Jaw Self-Centering Semi-Steel Body Plain Back Scroll Chucks

with Extra Large Thru-Hole

FRONT MOUNTING SCROLL CHUCKS75 3-Jaw Semi-Steel Body with Solid Jaws76 3-Jaw Semi-Steel Body with 2 Piece Jaws76 3-Jaw Steel Body with 2 Piece Jaws76 4-Jaw Semi-Steel Body with 2 Piece Jaws77 Spare Parts for 3 and 4-Jaw Front Mounting Scroll Chucks78 Base Plates for Front and Back Mount Chucks78 Base Plates for Back Mount ONLY


CONTENTS

4-JAW COMBINATION LATHE CHUCKS79 4-Jaw Combination Lathe Chuck Features, Benefits and Dimensions79 4-Jaw Combination Lathe Chucks with Semi-Steel Body79 4-Jaw Combination Lathe Chucks with Steel Body80 Spare Parts for 4-Jaw Combination Lathe Chucks

3-JAW SELF-CENTERING SCROLL CHUCKS WITHDOUBLE JAW GUIDES81 3-Jaw Self-Centering Scroll Chucks with Double Jaw Guides81 Spare Parts for 3-Jaw Self-Centering Scroll Chucks with Double Jaw Guides

INDEPENDENT CHUCKS82 4-Jaw Independent Lathe Chuck Features83 4-Jaw Independent Lathe Chuck Clamping Ranges83 T-Slot Dimensions for all 4-Jaw Independent Lathe Chucks84 4-Jaw Steel Body Plain Back Chucks with Two-Piece Jaws85 4-Jaw Semi-Steel Body Plain Back Chucks with Hard Solid and Two-Piece Jaws86 4-Jaw Steel Body, Type A1/A2 Direct Mount Chucks with Two-Piece Jaws87 4-Jaw Semi-Steel Body, Type A1/A2 Direct Mount Chucks with Hard Solid Jaws88 4-Jaw Steel Body, Type D1 Direct Mount Chucks with Two-Piece Jaws89 4-Jaw Semi-Steel Body, Type D1 Direct Mount Chucks with Hard Solid Jaws90 4-Jaw Semi-Steel Body, Type L Direct Mount Chucks with Hard Solid Jaws90 4-Jaw Semi-Steel Body, Threaded Direct Mount Chucks with Hard Solid Jaws

Adapters91 Rough Adapters for Independent Chucks91 Semi-Finished Threaded Adapters92 A1/A2 Semi-Machined Adapters93 Semi-Machined Type D1 Adapters94 DIN 55027 Semi-Machined Type C Spindle Adapters94 5C Semi-Finished Adapters

Parts95 Hard Master Jaws95 Hard Top Reversible Jaws96 Hard Solid Jaws96 Medium and Heavy Duty Soft Top Jaws97 Spare Parts for 4-Jaw Independent Lathe Chucks98 Radial T-Slot Table Face Plate Jaws

OIL COUNTRY CHUCKS4-Jaw Independent

99 4-Jaw Independent, Extra Heavy Duty Chucks with Forged Solid Steel Bodyand Extra Large Thru-Hole

100 4-Jaw Independent, Extra Heavy Duty Chucks with Forged Solid Steel Bodyand Extra Large Thru-Hole, Principle Dimensions


CONTENTS

OIL COUNTRY CHUCKS (continued)101 4-Jaw Independent, Extra Heavy Duty Chucks with Forged Solid Steel Body

and Extra Large Thru-Hole, Chuck ParametersParts

101 Spare Parts for 4-Jaw Independent, Extra Heavy Duty Chucks with Forged SolidSteel Body and Extra Large Thru-Hole

102 Top Jaw Mounting Bolts102 Type A Spindle Mounting Bolts102 Plain Back Mounting Bolts102 Camlock Studs and Set Screws103 Hard Master Jaws103 Hard Top Jaws104 Chuck Wrenches for 4-Jaw Independent and 3-Jaw Scroll Chucks105 Operating Screws

3-Jaw Scroll106 3-Jaw Self-Centering, Extra Heavy Duty Chucks with Forged Solid Steel Body

and Extra Large Thru-Hole107 3-Jaw Self-Centering, Extra Heavy Duty Chucks with Forged Solid Steel Body

and Extra Large Thru-Hole, Chuck ParametersParts

108 Type A Spindle Mounting Bolts108 Top Jaw Mounting Bolts108 Spare Parts for 3-Jaw Self-Centering, Extra Heavy Duty Chucks with Forged

Solid Steel Body and Extra Large Thru-Hole109 Principal Dimensions for Hard Master Jaws and Hard Top Jaws

ROTATING CHUCKS110 3-Jaw Self-Centering Chucks with Fine Adjustment Set-Tru110 Spare Parts for 3-Jaw Self-Centering Chucks with Fine Adjustment Set-Tru111 3-Jaw Self-Centering Chucks with MT Shanks with Solid Jaws111 3-Jaw Self-Centering Chucks with MT Shanks with Two-Piece Jaws111 Spare Parts for 3-Jaw Self-Centering Chucks with MT Shanks112 3-Jaw Heavy Duty Self-Centering Chucks with MT Shank112 Spare Parts for 3-Jaw Heavy Duty Self-Centering Chucks with MT Shank

COLLET CHUCKS113 5C High Speed Collet Chucks114 Mini High Speed Plain Back 5C Collet Chucks114 Collet Sets114 Finished Adapter Plates for Threaded and D1 Lathe Spindles114 Emergency Collets115 5C Collet Chucks for Mounting with Adapter Plates115 Machined* Adapters for A, D, DIN, NST and Threaded Lathe Spindles:

Part Number Series 7-877-, 7-878-, 7-879-, 7-915-, 7-921- and 7-922-


CONTENTS

COLLET CHUCKS (continued)115 Semi-machined Adapters for Threaded Lathe Spindles115 Spare Parts for 5C Collet Chucks for Mounting with Adapter Plates116 Super Precision 5C Collet Chucks with Fine Adjustment116 Fully Machined Steel Adapters for A, D, DIN and Threaded Lathe Spindles116 Spare Parts for Super Precision 5C Collet Chucks with Fine Adjustment117 16C Plain Back and SET-TRU Collet Chucks117 Adapters for A, D, C, L and Threaded Lathe Spindles117 Spare Parts for 16C Plain Back and SET-TRU Collet Chucks118 Fully Machined Adapters for 3 and 6-Jaw SET-TRU Chucks118 MT Adapters for 4” Diameter Chucks118 5C Adapters for Quick Clamping Chuck, Fully Machined118 MT Adapters for Quick Clamping Chucks, Fully Machined119 Semi-Finished 5C Adapters for BISON Lathe Chucks119 Principal Dimensions for BISON Chucks with 5C Adapters

MINI SELF-CENTERING SCROLL CHUCKS120 3 Jaw Self-Centering Scroll Chucks

3 AND 6-JAW QUICK CLAMPING SELF-CENTERING SCROLL CHUCKS121 2.17" (55mm) Quick Clamping Self-Centering Scroll Chucks122 3 and 6-Jaw Quick Clamping Self-Centering Scroll Chucks for Drill and End Mill

Sharpening and for Fixtures with 5C and MT Sockets123 3 and 6-Jaw Quick Clamping Self-Centering Scroll Chuck Dimensions124 Spare Parts for 3 and 6-Jaw Quick Clamping Self-Centering Scroll Chucks124 5C Adapters for Quick Clamping Chuck, Fully Machined124 MT Adapters for Quick Clamping Chucks, Fully Machined

POWER CHUCKS125 Power Chuck and Cylinder Selection Worksheet127 Large Thru-Hole Chucks, Direct and Indirect A2 Mount130 Large Thru-Hole Chucks, Plain Back130 Adapter Selection for Plain Back Chucks132 Clamping Ranges, Total Gripping Force and Speed133 Hard Top Jaws, Serration 1.5mm x 60°133 Soft Top Jaws, Serration 1.5mm x 60°133 Spare Parts for Chuck Reconditioning134 Draw Tube Nuts134 T-Nuts and Bolts134 Jaw and Chuck Mounting Bolts


CONTENTS

POWER CHUCKS (continued)135 Type A Steel Adapter Plates for Direct and Indirect Mount Chucks136 Spare Parts137 C Style Quick Change Master Jaws137 Jaw Inserts138 Draw Tube Dimension Selections and Assembly139 High Speed Hydraulic Cylinders with Closed Center140 High Speed Hydraulic Cylinders with Thru-Hole142 5C Plain Back Collet Chucks142 Spare Part for 5C Plain Back Collet Chucks143 A2-5 Direct Mount Collet Chucks143 Spare Parts for A2-5 Direct Mount Collet Chucks144 5C Precision Round Collets and Collet Sets145 16C Collet Power Chucks146 16C Individual Collets146 16C to 5C Adapters147 15-3/4" Plain Back 3-Jaw Chuck147 15-3/4" Bison Air Distribution Ring with O-Ring Set149 20" Diameter, 3-Jaw Heavy Duty Pneumatic Power Chuck Plain Back

with Large Thru-Hole150 Pneumatic Spring Power Chuck Large Thru- Hole and High Clamping Force

MOUNTING BOLTS AND HEX WRENCHES151 Socket Head Cap Screws151 Hex L-Wrenches: Singles, Short

LIVE AND DEAD CENTERS152 Universal Pipe Live Centers153 Bull Head Live Centers153 NC Quad-Bearing Live Centers154 Super Precision and Precision Live Centers154 Ultra Precision Adjustable Live Centers Heavy Duty, Triple Bearing Design155 Ultra and Super Precision Live Centers156 Live Centers with Interchangeable Inserts157 Automatic Face Drivers for RH and LH Operations157 Drive Pins and Centers for Automatic Face Drivers158 Universal Heavy Duty Hydraulic Automatic RH and LH Face Drivers159 Full Dead Centers and Half Dead Centers, ± 0.0001" T.I.R.159 Dead Centers with Nut, ± 0.0001" T.I.R.


CONTENTS

INDEXERS AND FACE PLATES160 Horizontal/Vertical Super Spacers161 Optional Accessories for Horizontal/Vertical Super Spacers161 Spare Parts for Horizontal/Vertical Super Spacers162 Replacement Parts for Horizontal/Vertical Super Spacers163 Low Profile Rotary Tables163 Sets of Dividing Plates with Handle164 Tailstocks for Horizontal/Vertical Super Spacers164 Adjustable Tailstocks for Horizontal/Vertical Super Spacers or for use

with any Rotary Table165 Face Plates166 Base Plates for Back Mount Only166 Base Plates for Front and Back Mount

MACHINE FIXTURES167 4-Jaw Self-Centering Machine Fixtures with Low Profile Forged Steel Body

with Rectangular Base167 Spare Parts for 4-Jaw Self-Centering Machine Fixtures

VISES168 Modular Precision Vises for CNC Machines168 Optional Accessories for Modular Precision Vises for CNC Machines


CONTENTS

ROTARY TOOLS

CAT V-FLANGE169 Caterpillar V-Flange Tooling Flange Sizes per ANSI B5.50-1994170 End Mill Holders CAT 40, Type 7636171 End Mill Holders CAT 50, Type 7636172 Shell End Mill Holders, Type 7385173 Stub Arbor Holders, Type 7318174 Semi Flush Slitting Saw Holders, Type 7374175 Double Angle Collet Chucks, Type 7652175 Collets and Collet Sets, Metric and English176 TG Collet Chucks, Type 7614177 TG Collets and Collet Chuck Sets178 ER Collet Chucks, Type 7607179 ER Collet Chucks with Through the Flange Coolant Capability, Type 7607AD and B179 ER Collet Chuck Sets179 Retention Knobs, Type 9886180 Face Mill Holders, Type 7382180 Jacobs Taper Holder, Type 5357181 MT Adapters, Type 1691181 CAT 50 to CAT 40 Adapters, Type 1684182 Precision Ball Bearing Keyless Drill Chucks, Integral CAT V-Flange, Type 7655182 Heavy Duty Precision Ball Bearing Keyless Drill Chucks183 Ultra Precision Milling Chucks and Collets, High Torque, CAT Shank, Type 7694183 Ultra Precision Milling Chucks and Collets, High Torque, BT 40 Shank, Type 7696

TAP HOLDERS184 Integral Shank Tension/Compression Tap Holders with BT Tapers184 Integral Shank Tension/Compression Tap Holders with CAT Tapers185 Integral Shank Rigid Tap Holders with BT Tapers185 Integral Shank Rigid Tap Holders with CAT Tapers185 11 Piece Tap Holder and Tap Adapter Set186 Quick Change Positive Drive Tap Adapters187 Quick Change Torque Control Tap Adapters188 Tension and Compression Tapping Chucks with Cylindrical Shank188 Rigid Tapping Chucks with Cylindrical Shank189 Integral Shank Tension/Compression Tap Holders with ER 32 Collet Shank and

ER 16 Collet Chuck189 Individual ER 16 Collets


CONTENTS

BT FLANGE190 MT Adapters190 Jacobs Taper Holders191 End Mill Holders192 Shell End Mill Holders193 ER Collet Chucks193 Extensions194 Double Angle Collet Chucks195 TG Collet Chucks196 Precision Ball Bearing Keyless Drill Chucks with Integral BT Flange197 Heavy Duty Keyless Drill Chucks

HSK AND VDI198 HSK Form A End Mill Holders199 HSK Form A Integral Shank Keyless Drill Chucks199 HSK Form A Jacobs Taper Holder199 HSK Form A Precision Ball Bearing, Heavy Duty Keyless Drill Chucks200 HSK Form A Collet Chucks ER 11 and 16200 HSK Form A Collet Chucks ER 25, 32 and 40201 VDI Toolholders, Rectangular Blanks, Form A1201 VDI Toolholders, Round Blanks, Form A2201 VDI Toolholders ER Collet Chucks202 Toolholder Bushing Type CV202 Toolholder Bushing Type B


CONTENTS

COLLETS203 5C High Speed Collet Chucks204 5C Precision Round Collets204 5C Precision Round Collet Sets204 Emergency Collets205 16C Collet Chucks205 16C Collet Power Chucks205 16C Precision Round Collets206 R8 Precision Round Collets207 DA 180, DA 100, DA 200 and DA 300 Collets207 DA 180, DA 100, DA 200 and DA 300 English Collet Set208 Collet Chucks with NST/NMTB-QC Shanks208 Collet Extensions209 TG Collet Chucks with R8 Shanks209 TG Collet Chucks with NST/NMTB Shanks209 TG Collet Sets210 TG Precision Single Angle Collets211 ER Spring Collets and Collet Sets212 Metric ER Spring Collets and Collet Sets213 ER Collet Chuck Sets214 ER Collet Chucks with Cylindrical Shanks214 ER Collet Chucks with R8 Shanks215 ER Collet Chucks with MT Shanks215 ER Collet Chucks with NST/NMTB QC Shanks

TOOL TIGHTENING FIXTURES216 Universal CNC Tool Tightening Fixtures216 Universal H/V CNC Tool Tightening Fixtures21`7 Universal H/V Heavy Duty Tool Tightening Fixtures


CONTENTS

CONVENTIONAL MACHINING ACCESSORIES218 Milling Machine Arbors219 Milling Machine Arbor Accessories, Solid Spacers with Keyways219 Milling Machine Arbor Accessories, Right Hand Nuts219 Milling Machine Arbor Accessories, Running Bushings221 Stub Milling Machine Arbors with Weldon Shank221 Slitting Saw and Stub Milling Machine Arbors with R8 Shank222 Slitting and Slotting Saw Arbors222 Rigid and Precision Design Arbors223 Shell End Mill Holders with Weldon Shank223 Face Mill Holders224 Shell End Mill Arbors with MT Shank224 Shell End Mill Arbors with R8 Shank224 Socket Head Arbor Screws225 Shell End Mill Arbors with NMTB Shank225 Shell End Mill Arbors with 4" Extension226 End Mill Holders with MT Shank226 End Mill Holders with R8 Shank227 End Mill Holders with NMTB Quick Change227 End Mill Holder Set Screws228 Shell Reamer Arbors with MT Shank229 Solid Sockets with MT Hole230 Morse Taper Sleeves231 Drill Drifts, Hardened and Zinc Plated231 Milling Machine Adapters231 Milling Machine Adapters with Draw Bar End232 Annular Cutter Holders232 Bridge Reamer Holders233 Integral Shank Drill Chucks233 Precision Drill Chuck Arbors - NST/NMTB-QC to Jacobs Taper233 Precision Drill Chuck Arbors - R8 to Jacobs Taper234 Precision Drill Chuck Arbors - Morse Taper to Jacobs Taper234 Precision Drill Chuck Arbors - Straight to Jacobs Taper235 Precision Ball Bearing Keyless Drill Chucks, Heavy Duty235 Universal Drill Chucks235 Heavy Duty Drill Chucks236 Quick Change Tool Posts236 Tool Post Sets and Individual Tool Holders

APPENDIXi Index by Part Numberviii Bison Model Numbersxiii Terms and Conditions


CHUCK SELECTION GUIDE

CHU

CKSELECTIO

NG

UID

EBISON


2" 3" 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25" 32" 36" 40" 49"60 mm 80 mm 100 mm 125 mm 160 mm 200 mm 250 mm 315 mm 400 mm 500 mm 630 mm 800 mm 915 mm 1000 mm1250 mm

Manual Chuck Selection Worksheet

Type of Chuck Plain Back * Direct MountSelf-Centering (scroll)

SET-TRU (scroll) N/AIndependentCombination N/A

5C Collet (manual) N/A5C Collet (power operated)

16C Collet N/ARotating with MT Shank

Quick Clamping N/ASpecial

Type of Chuck

* See type of mounting to select proper adapter plate

To ensure selection accuracy, fax this worksheet to your Customer Service Representative at 508-563-5110

Semi-SteelCast SteelForged SteelAluminumSpecial

2-Jaw (self-centering only)3-Jaw (self-centering only)

4-Jaw (self-centering, combination and independent)6-Jaw (self-centering only)

Number of Chuck Jaws

Two-piece Reversible Hard Jaws (standardon 3 and 4-jaw steel chucks and SET-TRU chucks)

Set of OD and Set of ID Hard Solid Jaws(self-centering chucks only)

Hard Solid Reversible Jaws(4-jaw independent chucks only)

Soft Top Jaws(require 2-piece jaws on chuck)

Soft Solid Jaws (3-jaw and 4-jaw scroll chucks,combination chucks)

Special

Type of Chuck Jaws

Chuck Outside Diameter

Chuck Body Materials

Plain BackShort Taper A1 or A2 - 4 5 6 8 11 15 20

Short Taper D1 3 4 5 6 8 11 15 -Short Taper C (DIN) - 4 5 6 8 11 - -

Long Taper L L00 L0 L1 L2 L3 - - -Threaded Standard 1" - 10 1-1/2" - 8 2-3/16" - 6 2-1/4" - 8 2-3/4" - 8 M39 x 4Threaded Hardinge 2-3/16" - 10"

5C Adapters - 4" 5" 6" - - - -MT Adapters MT3 MT4 MT5 - - - - -

Special Adapters

Minimum Hole Diameter

Maximum RPM

MaximumWeight of Workpiece (lbs)

Workpiece Diameter (max - min range)

Workpiece Length

Additional Workpiece Support(with or without additional support)

Chuck Working ParametersProper identification of all chuckparameters assists with recommendations,options, and helps to eliminate incorrectapplications and returns.

Type of Mounting - Lathe Spindle Nose for Chucks and Adapters


BISON


Application of Chucks and Centers

Adapter Plates (Chuck Adapters)

Rotating Chucks,Live Centers, andDead Centers

Lathe Chucks

Type A Type D1 Threaded Type L Type C

Quill

TailstockBed

Saddle

Toolpost

Headstock(houses the

spindle)

Base

Types of Spindle Nose


CHU

CKSELECTIO

NG

UID

EBISON


SpindleNose F1 F2 B C

max

ThreadE1 = E2UNC-3B

A-4 3.2500 - 2.5005 + .0005 .4375 7/16-14A-5 4.1250 2.4374 3.2505 +.0005 .5625 7/16-14A-6 5.2500 3.2500 4.1880 + .0005 .6250 1/2-13A-8 6.7500 4.37500 5.50075 + .0005 .6875 5/8-11A-11 9.2500 6.5000 7.75075 + .0005 .7500 3/4-10A-15 13.0000 9.7500 11.251 + .001 .8125 7/8-9A-20 18.2500 14.5000 16.251 +.001 .8750 1-8A-28 25.5000 20.8750 23.001 + .001 1.000 1 1/4-7

Determining the Proper Spindle Type and SizeBISON Chucks meet all of the requirements of ASA Standard B5.9-1960• For spindle nose accuracy (T.I.R.) see page 17• If further assistance is desired, please contact ToolmexCustomer Service at800-992-4766 or 508-653-8897

Selecting the chuck mounting:• Choose from the types shown below• For short taper spindle nose, Type A, D, or C (DIN),measure the pilot diameter and length (dimensionsB and C), bolt circle diameter (dimensions F1 and F2)and diameter of the holes (dimensions E1 and E2)• In the case of A type mount, check the numberof bolt circles (one for A2 mount or two for A1 mount)• All chucks with A1 mount can be installed on A1spindle nose only

Spindle Type A1 and A2

Type A1 hastapped holeson both innerand outer boltcircles

SpindleNose A F B C

max E No. ofHoles

CamlockStud

DiameterD1-3 3.622 2.7820 2.1250 + .00025 .4375 .5937

39/16

D1-4 4.606 3.2500 2.5005 + .0005 .4375 .6562 5/8D1-5 5.748 4.1250 3.2505 + .0005 .5000 .8750

6

3/4D1-6 7.126 5.2500 4.1880 + .0005 .5625 1.000 7/8D1-8 8.858 6.7500 5.50075 +.0005 .6250 1.125 1D1-11 11.732 9.2520 7.75075 +.0005 .6875 1.250 1 3/16D1-15 15.866 13.0000 11.251 + .001 .7500 1.375 1 3/8

Camlock Spindle Type D1

• All chucks with A2 mount can be installed oneither A1 or A2 spindle noses• For the long taper spindle nose, Type L, checkpilot diameter, length and thread size(dimensions A, C, and B)• For the threaded spindle nose, check thethread diameter, number of threads per inchand length (dimensions B and D), plus overalllength (dimension F1)

Type A2 doesnot have holes inthe inner boltcircle


BISON


SpindleNose A B F1 D E

1" - 10" UNS-2B 1.015 1.500 .4375 1.0001 1/2"-8" UN-2B 1.515 1.500 .4375 1.000

2 3/16" - 10" UN-2B 2.2025 1.750 .5625 1.1252 1/4" - 8" UN-2B 2.260 1.750 .5625 1.1252 3/16" - 6" UN-2B 2.2025 1.750 .5625 1.1252 3/4" - 8" UN-2B 2.760 2.0625 .6875 1.3125

Determining the Proper Spindle Type and SizeLong Taper Key Drive, Spindle Type L

SpindleNose

ThreadB C A Key

L00 3 3/4" - 6" 2 2.75 3/8 x 3/8 x 1 1/2L0 4 1/2" - 6" 2 3/8 3.250 3/8 x 3/8 x 1 3/4L1 6" - 6" 2 7/8 4.125 5/8 x 5/8 x 2 3/8L2 7 3/4" - 5" 3 3/8 5.250 3/4 x 3/4 x 2 7/8L3 10 3/8" - 4" 3 7/8 6.500 1 x 1 x 3 1/4

Threaded Spindle

German Standard DIN 55027, Spindle Type C

SpindleNose F B C

max E No. ofHoles

C-4 3.2500 2.5005 .4331 .83 3C-5 4.1250 3.2505 .5118 .83 4C-6 5.2500 4.1880 .5512 .91 4C-8 6.7500 5.50075 .6299 1.14 4C-11 9.2520 7.75075 .7087 1.42 6


CHU

CKSELECTIO

NG

UID

EBISON


ChuckDiameterD

Universal and Precision Chuck Types: 3200, 3500, 3600, and 3700

dL n p s with

solid jaws

with2 piecejaws

Radial Runout Axial Runout

1 2 3 A B C

3-1/2" 0.39 – 0.55 1.57 1.57 2.36 1.38 2.48 – 0.0008 0.001 0.00064" 0.39 0.55 0.71 1.57 1.57 2.95 1.97 3.15 – 0.0008 0.001 0.00065" 0.71 0.98 1.18 2.36 1.97 3.94 2.44 3.94 4.72 0.0012 0.0014 0.0008

6-1/4" 0.71 1.18 1.57 2.36 1.97 5.31 3.46 3.94 5.9 0.0012 0.0014 0.00088" 1.18 1.57 2.08 3.15 3.15 6.38 3.78 6.3 7.28 0.0016 0.0018 0.00110" 1.18 2.08 2.95 3.15 3.15 7.87 5.9 6.3 8.86 0.0016 0.0018 0.001

12-1/2" 2.08 2.95 3.94 4.72 4.92 9.92 8.27 9.84 11.81 0.002 0.0022 0.001215-3/4" 2.08 3.94 4.92 4.72 4.92 11.1 9.84 9.84 13.78 0.0024 0.0025 0.001220" 2.95 3.94 4.92 6.3 7.87 11.1 11.81 15.75 15.75 0.004 0.004 0.00225" 2.95 4.92 6.3 6.3 7.87 12.79 15.75 15.75 15.75 0.004 0.004 0.002

31-1/2" 6.3 7.87 9.84 6.3 12.8 19.7 15.75 19.7 19.7 0.0059 0.0059 0.0024

Self-Centering Scroll Chuck Accuracy• All allowable runouts which are specified relate tomeasurements at three different jaw openings d (1, 2, and 3)

Permissible Spindle RunoutTo obtain the specified clamping accuracy of achuck mounted on a machine tool, it is necessary to:

1. Reduce play in the spindle bearings to allowable minimum2. Ensure the machine spindle nose does not exceed the values specified3. Meet the basic requirements for correct mounting of the chuck on the spindle nose4. Follow the chuck manual

ChuckDiameter

SpindleRunout

3500 Steel Body Chucks3" - 16" .00012" max20" - 25" .0002" max3200 Semi-Steel Body3" - 6" .00012" max8" - 32" .0002" max


BISON


ChuckDiameter

d1 d2 d3 max d4 max d5 maxJaws

inch mm solid reversible solid reversible solid reversible solid reversible solid reversible2-1/3 60 .02-.95 – .79-1.65 – 1.46-2.36 – .79-1.65 – 1.50-2.36 –3-1/4 80 .08-1.06 – .87-1.81 – 1.77-2.72 – .98-1.97 – 1.89-2.80 –4 100 .12-1.30 – .98-2.20 – 2.20-3.43 – 1.26-2.44 – 2.44-3.27 –5 125 .12-1.97 .12-1.97 1.37-2.91 1.34-2.99 2.83-4.53 2.95-4.65 1.54-3.27 2.05-3.78 3.15-4.92 3.74-4.92

6-1/4 160 .12-2.52 .12-2.52 1.65-3.94 1.65-3.82 3.70-6.06 3.46-5.75 1.97-4.21 2.44-4.76 3.86-6.30 4.53-6.308 200 .16-3.54 .16-3.54 2.05-5.31 1.97-5.12 4.72-7.95 4.13-7.48 2.36-5.71 2.83-6.14 5.12-7.87 5.24-7.8710 250 .20-4.65 .20-4.65 2.44-6.85 2.28-6.50 5.70-10.43 4.92-9.25 3.03-7.40 3.38-7.75 6.30-9.84 6.30-9.84

12-1/2 315 .39-5.16 .20-5.16 3.07-7.87 2.56-7.16 6.77-11.77 5.70-10.43 3.54-8.46 4.06-8.90 7.48-12.40 7.48-12.4015-3/4 400 .39-7.09 .39-7.09 3.35-9.92 2.83-8.98 8.27-14.96 6.50-12.95 4.05-10.71 5.00-11.57 9.05-15.75 9.05-15.7520 500 .79-9.25 .79-9.25 4.72-13.19 4.72-16.14 9.65-18.74 7.87-19.10 5.51-14.06 4.33-15.75 10.87-19.69 7.48-19.6925 630 1.18-13.19 1.18-13.19 6.30-18.31 5.51-23.23 12.80-24.80 8.27-26.18 7.09-19.17 4.72-22.44 13.58-24.80 7.88-24.80

31-1/2 800 5.9-18.98 5.9-18.98 11.10-24.17 9.92-28.99 17.64-30.71 12.91-31.97 11.89-24.96 9.45-28.5 18.43-31.50 12.44-31.50

Clamping Ranges for Self-Centering Scroll Chucks

Solid Jaws Two-piece Reversible Jaws

To Avoid a Chuck Gripping Problem, Select the ProperHard Top Jaws or Soft Top Jaws

Jaw for Heavy Machining Jaws for Special Applications Jaws for Finishing


CHU

CKSELECTIO

NG

UID

EBISON


Chuck Diameter 3-1/4" 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25" 31-1/2"l 1.2 × d 1.5 × d 1 × dz 4 × h

Chuck Diameter 3-1/4" 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25" 31-1/2"Steel and Semi-Steel Chucks 2,200 3,750 5,300 6,800 8,200 10,000 12,000 14,300 16,000 17,700 19,800Max Pinion Torque Nm 35 50 75 120 160 180 200 280 360 460 500

Chuck Diameter 3-1/4" 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25" 31-1/2"Universal Chucks (Semi-steel body) 4000 3500 3200 3000 2500 2000 1500 1000 700 500 300Precision Chucks (Steel body) 6000 5200 4800 4500 4000 3500 2800 2000 1200 1000 450

Chuck Diameter 3-1/4" 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25"Unbalancing (ounce-inch) 0.15 0.22 0.32 0.44 0.62 0.87 1.25 1.94 4.16 8.88

Safe Operating ParametersConditions:• l and z = maximum length of workpiece• d = workpiece diameter• h = height of the clamping jaw step• Workpiece is clamped into the chuck jawswithout additional support

Total Gripping Force of all BISON Self-Centering Chucks - lbs

Recommended Maximum Speeds for Self-Centering Chucks - RPM

Value of Unbalancing for Precision Self-Centering Chucks Only


BISON


Lathe Chuck Safety Conditions• Due to chuck rotating speeds and cutting forcesduring machining, care should be taken to ensurethe proper and safe use of your BISON chuck• Cleaning should be done often for safety purposesas well as to provide a long work life for your chuck• Proper maintenance will ensure your satisfaction

PRIOR TO OPERATING YOUR BISON LATHE CHUCK, PLEASE:

• Read the chuck manual

• Do not start the lathe until all is clearA collision between the chuck and lathe will cause damage to both

• Do not use the chuck on heavy work where the chuck jaws project appreciably from the chuck bodyRefer to the tables on page 18 to select the correct size chuck for the application

• Do not clamp long work pieces in the chuck without additional support as this can cause heavy damageto the lathe and work environmentRefer to the table on page 19 for safety parameters

• Always remove the chuck wrench before starting the machine

• Do not remove the safety spring from the chuck wrench

• Never operate the chuck if any parts are damaged, missing or cracked

• Do not tamper with the chuckIf an inaccuracy is found, check the spindle nose or adapter plate for true-running and make sure there is nodirt or foreign matter between the mounting faces

• Never exceed maximum speed (RPM) of the chuckThe MAX RPM is stamped on the chuck faceRefer to the table on page 19 for recommended maximum speeds for self-centering chucks

• Periodically inspect and service chucks for wear to avoid inadequate workholding conditions

• Be sure top jaws are securely bolted to the master jaws

• Never do any unauthorized chuck modifications

• Always keep your chuck clean and lubricated

SET-TRU CHUCKS

SET-TRUCH

UCKS

BISON


• Bison SET-TRU Scroll Chucks can be used for all machiningoperations where universal chucks are used, along withapplications where universal scroll chucks are unsuitable

• Outstanding accuracy, versatility and long life make BisonSET-TRU chucks invaluable in the modern workshop andindispensible in the toolroom

Features of 6-Jaw SET-TRU Chucks:• The 6 jaws grip firmly with less pressure and lessdistortion per jaw

• Ideal for thin wall and second operation work• Eliminates the need for spring collets

SET-TRU Chuck Features and Benefits:• Fine adjustment• Forged steel body• 3 pinion design• 4 micro adjustment screws provide .0004" T.I.R. repeatability• 16", 20" and 25" diameter chucks with 3 jaws and 6 jawsuse 8 micro adjustment screws achieving extremely highgripping concentricity• Two piece top and master jaws are American Standardtongue and groove

• 4" diameter chuck has 2 sets of solid jaws• Chuck body is constructed of high quality forged steel,making it safe to run at high lathe speeds• Scrolls are forged and fully hardened with thread flanksground on both sides, then precisely balanced for longerlife and higher accuracy• Each scroll is precisely balanced• Jaw teeth and guides on both sides are fully hardenedand ground. Hardened and ground bushings arepressed into the pinion seats. Pinions in 3 pinionmodels are hardened and ground• Each chuck is balanced within fine limits (see page 19of technical reference pages for more information)• Steel mounting plates are interchangeable with BisonSET-TRU chucks of the same size so that one chuckcan be used on different spindles• The life of your Bison chuck can be extended significantlythrough proper maintenanceIt must be cleaned on a regular basis as recommended• For the best gripping results, use the Bison recommendedchuck grease: Part Number 7-799-025

2, 3, 4, and 6-Jaw SET-TRU Scroll Chucks, 0.0004" T.I.R.

OutstandingAccuracy and Quality

Hardenedand GroundSurfaces

Steel AdapterFront View

ChuckBack View

See pages 125 - 128 for more information.

SET-TRU CHUCKS

BISON


Clamping Ranges 6-Jaw Chuckswith Solid Jawswith Two-Piece Jaws

Clamping Ranges3 and 4-Jaw Chuckswith Solid Jawswith Two-Piece Jaws

ChuckDiameter 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25"

SolidJaws

d1 .118 - 1.299 .236 - 1.69 .315 - 2.51 .315 - 3.54 .47 - 4.65 .47 - 5.16 - - -d2 1.259 - 2.440 1.65 - 3.07 2.05 - 4.21 2.52 - 5.71 3.23 - 7.40 3.74 - 8.46 - - -d3 2.440 - 3.661 3.27 - 4.72 4.02 - 6.30 5.20 - 7.87 6.50 - 9.84 7.56 - 12.40 - - -d4 1.023 - 2.204 1.34 - 2.68 1.85 - 3.94 2.17 - 5.31 2.68 - 6.85 3.23 - 7.87 - - -d5 2.244 - 3.425 2.91 - 4.33 3.86 - 6.06 4.76 - 7.95 5.91 - 10.08 7.01 - 11.77 - - -

Two-PieceJaws

d1 - .236 - 1.69 .315 - 2.51 .315 - 3.54 .47 - 4.65 .47 - 5.16 .59 - 7.95 1.18 - 9.25 1.57 - 13.19d2 - 1.97 - 3.43 2.64 - 4.76 2.91 - 6.14 3.23 - 7.40 4.25 - 8.90 5.20 - 11.65 4.76 - 15.83 5.20 - 21.85d3 - 3.70 - 4.92 4.65 - 6.30 5.28 - 7.78 6.46 - 9.84 6.02 - 12.40 9.29 - 15.75 7.76 - 18.82 8.27 - 24.80d4 - 1.30 - 2.75 1.77 - 3.82 2.05 - 5.12 2.68 - 6.85 2.68 - 7.17 2.87 - 9.92 5.31 - 16.26 5.91 - 23.03d5 - 2.30 - 4.68 3.62 - 5.75 4.29 - 7.48 5.91 - 10.08 5.91 - 10.08 6.65 - 13.86 8.27 - 19.25 8.66 - 26.02

ChuckDiameter 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25"

SolidJaws

d1 .118 - 1.30 .118 - 1.97 .118 - 2.52 .157 - 3.54 .197 - 4.65 .394 - 5.16 - - -d2 1.26 - 2.44 1.54 - 3.27 1.97 - 4.21 2.36 - 5.71 3.03 - 7.40 3.54 - 8.46 - - -d3 2.44 - 3.27 3.15 - 4.92 3.86 - 6.30 5.12 - 7.87 6.30 - 9.84 7.48 - 12.40 - - -d4 .98 - 2.20 1.34 - 2.91 1.65 - 3.94 2.05 - 5.31 2.44 - 6.85 3.07 - 7.87 - - -d5 2.20 - 3.43 2.83 - 4.53 3.70 - 6.06 4.72 - 7.95 5.71 - 10.08 6.77 - 11.77 - - -

Two-PieceJaws

d1 - .118 - 1.97 .118 - 2.52 .157 - 3.54 .197 - 4.65 .394 - 5.16 .394 - 7.09 .787 - 9.25 1.18 - 13.19d2 - 2.05 - 3.78 2.44 - 4.76 2.83 - 6.14 3.39 - 7.76 4.06 - 8.90 5.00 - 11.57 4.33 - 15.75 4.72 - 22.44d3 - 3.74 - 4.92 4.53 - 6.30 5.24 - 7.87 6.30 - 9.84 7.48 - 12.40 9.06 -15.75 7.48 - 19.69 7.87 - 24.80d4 - 1.34 - 2.99 1.65 - 3.81 1.97 - 5.12 2.28 - 6.50 2.56 - 7.17 2.84 - 8.98 4.72 - 16.14 5.51 - 23.23d5 - 2.95 - 4.65 3.46 - 5.75 4.13 - 7.48 4.92 - 9.25 5.71 - 10.43 6.50 - 12.95 7.87 - 19.09 8.27 - 26.18


• Increased engagement of the scroll teeth andjaw teeth results in a more rigid setup with lessstress on the chuck’s guideways

SET-TRU CHUCKS

SET-TRUCH

UCKS

BISON


2 and 3-Jaw SET-TRU Scroll Chucks, 0.0004" T.I.R.with Fine Adjustment, Forged Steel Body, 2 and 3 Pinion Design

3-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws• Forged Steel Body

3-Jaw Scroll Chucks with Two Sets of Hard Solid Jaws• Forged Steel Body

Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

5" 1.378 3800 11 7-866-05006-1/4" 1.654 3500 21 7-866-06008" 2.165 3100 35 7-866-080010" 2.992 2700 59 7-866-1000

12-1/2" 4.055 2200 105 7-866-120015-3/4" 5.354 1800 201 7-866-160020" 7.480 1200 377 7-866-200025" 9.921 1000 630 7-866-2500

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

4" .787 4200 7.3 7-866-80405" 1.378 3800 11 7-866-8050

6-1/4" 1.654 3500 21 7-866-80608" 2.165 3100 35 7-866-808010" 2.992 2700 59 7-866-8100

12-1/2" 4.055 2200 105 7-866-8120

Each chuck is provided with:• 1 Set of hard solid ID jaws• 1 Set of hard solid OD jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys

Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of soft top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

6-1/4" 1.654 3000 22 7-827-06008" 2.165 2500 37 7-827-080010" 2.992 2000 65 7-827-1000

12-1/2" 4.055 1500 119 7-827-1200

2-Jaw Scroll Chucks with Soft Top Reversible Jaws• Forged Steel Body• 2 pinion design

Type 3565

Type 3564

Type 3165

SET-TRU CHUCKS

BISON


6-Jaw Scroll Chucks with Two Sets of Hard Solid Jaws

6-Jaw Scroll Chucks with Two-Piece Hard Reversible Jaws

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

5" 1.378 3000 14 7-868-05006-1/4" 1.654 2500 25 7-868-06008" 2.165 2200 42 7-868-080010" 2.992 1900 78 7-868-1000

12-1/2" 4.055 1500 128 7-868-120015-3/4" 5.354 1500 250 7-868-160020" 7.480 800 397 7-868-200025" 9.921 700 647 7-868-2500

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

4" .787 4000 9.7 7-868-80405" 1.378 3000 14 7-868-8050

6-1/4" 1.654 2500 25 7-868-80608" 2.165 2200 42 7-868-808010" 2.992 1900 78 7-868-8100

12-1/2" 4.055 1500 128 7-868-8120

Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys• Eye bolts (16” to 25” only)

Each chuck is provided with:• 1 Set of hard solid ID jaws• 1 Set of hard solid OD jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys

Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 1 Set of fine adjustment screws• 2 Hex keys

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

6-1/4" 1.654 2500 22 7-847-06008" 2.165 2200 37 7-847-080010" 2.992 1900 65 7-847-1000

12-1/2" 4.055 1500 119 7-847-1200

4 and 6-Jaw SET-TRU Scroll Chucks, 0.0004" T.I.R.with Fine Adjustment, Forged Steel Body, 2 and 3 Pinion Design

4-Jaw Scroll Chucks with Two-Piece Hard Reversible JawsType 3765

Type 3864

Type 3865

SET-TRU CHUCKS

SET-TRUCH

UCKS

BISON


1. Chuck Body2. Back Cover3. Scroll Plate 7-887-5...4. Pinion 7-886-5...5. Pinion Half Ring 7-888-7...6. Pinion Sleeve 7-888-5...7. Hard Master Jaws 7-885-...8. Hard Top Jaws 7-883-...9. Grease Nipple10, 11 and 13. Back Cover Mounting Bolts12. Spindle Locating Pin - “A” Mount Only14. Chuck Wrench 7-889-0...15 and 16. Hard Top Jaw Mounting Bolts 7-897-5...17. Chuck Mounting Bolts 7-897-7...18 and 20. Hex Keys 6-999-5...19. Fine Adjustment Screw 7-897-6...

Chuck Diameters: 15-3/4", 20", and 25"Chuck Diameters: 4" thru 12-1/2"

See page 22 for clamping ranges


ChuckDiameter

DF E A1 A

Holed

(max)H

2-PieceJaws

SolidJaws

Soft TopJaws** C

Mounting BoltsM and T

FineAdjustmentScrews N

h Thread Qty Thread Qty

4" 3.2677 1.7717 - - 0.787 2.677 - 0.63 - 0.51 M8 x 1.25

3

M10 x 1

4

M12 x 1*5" 4.252 2.1654 - - 1.378 2.362 1.575 0.787 - 0.59 M8 x 1.25 M12 x 1

6-1/4" 5.5118 3.3858 - - 1.654 2.677 1.71 1.26 1.697 0.67 M10 x 1.5

M18 x 1

8" 6.9291 4.3307 - - 2.165 3.071 1.77 1.142 1.776 0.71 M10 x 1.510" 8.8188 5.7086 - - 2.992 3.504 2.05 1.339 2.071 0.79 M12 x 1.75

12-1/2" 11.2598 7.0866 - - 4.055 3.819 2.24 1.693 2.24 0.79 M16 x 215-3/4" 6.75 - 11.748 11.782 5.354 4.803 2.638 - - 0.87 5/8 x 11

6 820" 9.252 - 16.022 16.032 7.48 5.669 3.11 - - 1.18 3/4 x 1025" 13 - 16.022 16.032 9.921 5.905 3.425 - - 1.18 3/4 x 10

* For 6-jaw chucks only, see page 36** For 2-jaw chucks only

SET-TRU CHUCKS

BISON


Adapter Plate and Chuck Mounting Principles for 15-3/4" through 25" Diameter Chucks• The adapter plate’s outside diameter, d, is the same as chuck’s counterbore diameter, D• The clearance range between the chuck counterbore and adapter OD is from 0.0141" to 0.0236"

Adapter Plate and Chuck Mounting Principles for 4" through 12-1/2" Diameter Chucks• The adapter plate’s outside diameter, d, is the same as the chuck’s outside diameter, D• The clearance range between the chuck counterbore and adapter boss OD is from 0.0078" to 0.0129"

Adapter Boss Chuck Counterbore


A

B

EC

ChuckDiameter A B

(HB) C E T-slotLength

20" 0.9055" .5512" .2362" 0.8268" 4.51"25" 1.1811" .7087" .4724" 1.0236" 4.69"

3-Jaw Chuck T-slot Dimensions for 20" and25" Diameter Chucks Only

Chuck CounterboreAdapter Boss

Face of the chuck

.

SET-TRU CHUCKS

SET-TRUCH

UCKS

BISON


ChuckDiameter

TaperSize A D E F C H

ChuckMountingHolesG

K B1 B

SpindleMountingBoltsN

No. ofBolts

Wtlbs

PartNumber

5"A4 4.92 2.500

1.3783.252

2.164 4.252 M8 x 1.25.87

.551.42 7/16 - 14

44.8 7-874-054

A5 4.92 3.2505 4.126 .87 1.42 7/16 - 14 4.2 7-874-055A6 6.30 4.1880 5.252 .53 1.89 1/2 - 13 9.1 7-874-056

6-1/4"A5

6.303.2505

1.6544.126

3.385 5.512 M10 x 1.5.82

.691.45 7/16 - 14

46.77 7-874-065

A6 4.1880 5.252 .82 1.65 1/2 - 13 6.97 7-874-066

8"A5

7.873.2505

2.1654.126

4.330 6.929 M10 x 1.5.62

.661.29 7/16 - 14

49.3 7-874-085

A6 4.1880 5.252 1.10 1.77 1/2 - 13 13.5 7-874-086

10"A5

9.843.2505

2.9924.126

5.708 8.819 M12 x 1.75.74

.741.49 7/16 - 14

417.3 7-874-105

A6 4.1880 5.252 .74 1.49 1/2 - 13 17.3 7-874-106A8 5.5007 6.748 1.06 1.81 5/8 - 11 20.2 7-874-108

12-1/2"A6

12.404.1880

4.0555.252

7.076 11.260 M16 x 2.74

.741.49 1/2 - 13

427.3 7-874-126

A8 5.5007 6.748 1.06 1.81 5/8 - 11 35.7 7-874-128A11 7.7507 9.252 1.42 2.17 3/4 - 10 41.20 7-874-129

15-3/4"A6

11.754.1880 4.055 5.252

- 6.748 5/8 - 111.38 - 1.38 1/2 - 13

631.4 7-874-166

A8 5.5007 5.346 6.748 1.14 - 1.46 5/8 - 11 28.8 7-874-168A11 7.7507 5.354 9.252 1.06 - 1.89 3/4 - 10 35.8 7-874-169

20"A8

16.025.5007 5.346 6.748

- 9.252 3/4 - 101.42 - 1.42 5/8 - 11

669 7-874-208

A11 7.7507 7.590 9.252 1.18 - 1.42 3/4 - 10 61 7-874-209A15 11.2505 7.480 13.000 1.18 - 2.05 7/8 - 9 76 7-874-215

25"

A8 16.02 5.5007 5.346 6.748

- 13.0003/4 - 10

1.42 - 1.42 5/8 - 11

6

69 7-874-258A11 16.02 7.7507 7.590 9.252 1.42 - 1.42 3/4 - 10 61 7-874-259A15 16.02 11.2505 9.921 13.000 2.05 - 2.05 7/8 - 9 76 7-874-260A20 21.00 16.2518 9.921 18.252 1 - 8 2.76 - 2.76 1 - 8 90 7-874-265

G

Fully Machined Type A Steel Adapters for SET-TRU Chucks• Designed to Mount on A1 and A2 American Standard Spindles

Type A

Chuck Diameters: 15-3/4" to 25"Chuck Diameters: 5" to 12-1/2"

Type 8215

SET-TRU ADAPTERS

BISON


ChuckDiameter

TaperSize

Studs

A F D E C H

ChuckMountingHolesG

B1 B V Wtlbs

PartNumberQty Diameter

4"D1-3 3 9/16" 3.94 2.78 2.1250

.787 1.771 3.268 M8 x 1.25 .471.50

-3.31 7-875-043

D1-4 3 5/8" 4.25 3.25 2.5005 1.57 3.97 7-875-044

5"

D1-3 3 9/16" 4.92 2.78 2.1250

1.378 2.164 4.252 M8 x 1.25 .55

1.57

-

5.95 7-875-053D1-4 3 5/8" 4.92 3.25 2.5005 1.54 5.73 7-875-054D1-5 6 3/4" 5.31 4.13 3.2503 1.73 6.92 7-875-055D1-6 6 7/8" 7.12 5.25 4.1878 1.89 13.06 7-875-056D1-8 6 1" 8.86 6.45 5.50075 2.09 15.00 7-875-058

6-1/4"

D1-3 3 9/16" 6.30 2.78 2.1250

1.654 3.385 5.512 M10 x 1.5 .63

1.81

-

10.80 7-875-063D1-4 3 5/8" 6.30 3.25 2.5005 1.81 9.92 7-875-064D1-5 6 3/4" 6.30 4.13 3.2503 1.81 9.89 7-875-065D1-6 6 7/8" 6.69 5.25 4.1878 1.97 13.00 7-875-066D1-8 6 1” 6.30 6.75 5.50075 1.54 25 7-875-068

8"

D1-3 3 9/16"

7.87

2.78 2.1250 2.024

4.330 6.929 M10 x 1.5 .67

1.30

-

10.36 7-875-083D1-4 3 5/8" 3.25 2.5005 2.165 1.30 10.36 7-875-084D1-5 6 3/4" 4.13 3.2503 2.165 1.85 15.87 7-875-085D1-6 6 7/8" 5.25 4.1878 2.165 2.01 17.64 7-875-086D1-8 8 1" 8.86 6.75 5.50075 2.165 2.24 20.00 7-875-088

10"

D1-4 3 5/8"

9.84

3.25 2.6005 2.382

5.708 8.819 M12 x 1.75 .75

1.50

-

18.84 7-875-104D1-5 6 3/4" 4.13 3.2510 3.130 1.50 17.64 7-875-105D1-6 6 7/8" 5.25 4.1878 2.992 2.09 28.44 7-875-106D1-8 6 1" 6.75 5.50075 2.992 2.36 32.41 7-875-108

12-1/2"D1-6 6 7/8"

12.405.25 4.1878

4.055 7.086 11.260 M16 x 2 .751.50

-28.44 7-875-126

D1-8 6 1" 6.75 5.50075 2.24 47.84 7-875-128D1-11 6 1-3/16" 9.25 7.75055 2.52 52.91 7-875-129

15-3/4"D1-6 6 7/8"

11.755.25 4.1878 4.055

- 6.748 5/8 - 11 -1.38

.8729.0 7-875-166

D1-8 6 1" 6.75 5.50075 5.358 1.50 27.2 7-875-168D1-11 6 1-3/16" 9.25 7.75055 5.358 1.89 26.8 7-875-169

20"D1-8 6 1"

16.026.75 5.50075 5.358

- 9.252 3/4 - 10 -1.50 1.50 74 7-875-208

D1-11 6 1-3/16" 9.25 7.75055 7.590 1.73 1.73 78 7-875-209D1-15 6 1-3/8" 13.00 11.2505 7.480 2.05 2.05 83 7-875-215

25"D1-8 6 1"

16.026.75 5.50075 5.358

- 13.071 3/4 - 10 -1.50 1.50 74 7-875-258

D1-11 6 1-3/16" 9.25 7.75055 7.590 1.73 1.73 78 7-875-259

Fully Machined Type D Steel Adapters for SET-TRU Chucks• Type D1 American Standard Camlock Spindles

Type DChuck Diameters: 15-3/4" to 25"Chuck Diameters: 4" to 12-1/2"

Type 8245

SET-TRU ADAPTERS

SET-TRUCH

UCKS

BISON


ChuckDiameter

D

Threadd G E F L C K M No. of

BoltsWtlbs

PartNumber

4"1-10 UNS-2B 1.0150

1.771 3.268 1.54 0.47 .51 M8 x 1.25 34.85 7-876-041

1-1/2 - 8 UN-2B 1.5150 5.29 7-876-042

5"

1-1/8 - 12W 1.2496

2.164 4.252

1.54

0.55 .51 M8 x 1.25 3

- 7-876-05151-1/2 - 8 UN-2B 1.5150 1.54 6.61 7-876-052

2-3/16 - 10 Hardinge 2.1889 2.44 7.05 7-876-0542-1/4 - 8 UN-2B 2.260 1.54 6.8 7-876-056

6-1/4"1-1/2 - 8 UN-2B 1.5150

3.385 5.5121.50

0.63 .59 M10 x 1.5 37.05 7-876-062

2-3/16 - 10 Hardinge 2.1889 1.61 7.50 7-876-0642-1/4 - 8 UN-2B 2.2600 1.75 7.94 7-876-066

8"1-1/2 - 8 UN-2B 1.5150

4.330 6.9291.50

0.67 .59 M10 x 1.5 39.92 7-876-082

2-1/4 - 8 UN-2B 2.2600 1.75 11.46 7-876-0832-3/8 - 6 UN-2B 2.3850 2.00 13.89 7-876-084

10" 2-3/8 - 6 UN-2B 2.3850 5.708 8.819 2.00 0.74 .75 M12 x 1.75 3 30.0 7-876-10412-1/2" 2-3/8 - 6 UN-2B 2.3850 7.086 11.280 2.00 1.00 .94 M16 x 2 3 50.0 7-876-124

Fully Machined Threaded Steel Adapters for SET-TRU Chucks

Type 8285Threaded

SET-TRU ADAPTERS

BISON


.

ChuckDiameter

TaperSize A D E C H F B1 B G No. of

StudsWtlbs

PartNumber

6-1/4" C-6 6.30 4.188 1.65 3.385 5.512 5.252 .63 1.26 M10 x 1.5 4 6.0 7-920-0668" C-6 7.87 4.188 2.17 4.330 6.929 5.252 .67 1.57 M10 x 1.5 4 12.0 7-920-08610" C-6 9.84 4.188 2.99 5.708 8.819 5.252 .75 1.69 M12 x 1.75 4 28.0 7-920-106

12-1/2"C-6

12.44.188 4.06

7.086 11.265.252 .75 1.69

M16 x 24 22.7 7-920-126

C-8 5.501 4.06 6.748 .75 1.69 4 48.0 7-920-128

15-3/4"C-8

11.755.501 5.35

- 6.756.75

- 1.46 5/8 - 114 27 7-920-168

C-11 7.751 4.72 9.25 6 25 7-920-169

20"C-8

16.025.501 5.35

- 9.256.75

-1.42

3/4 - 104 70 7-920-208

C-11 7.751 7.57 9.25 1.42 6 66 7-920-20925" C-11 16.02 7.751 7.57 - 13.0 9.25 - 1.42 3/4 - 10 6 66 7-920-259

Fully Machined Type C Steel Adapters for SET-TRU Chucks• DIN 55027

Chuck Diameters:15-3/4" to 25"

Chuck Diameters:5" to 12-1/2"

Type 8235Type C

SET-TRU ADAPTERS

SET-TRUCH

UCKS

BISON


ChuckDiameter D Taper

SizeThreadT - UNS3 G d E F M J C L Wt

lbsPart

Number

6-1/4" 6.30L00 3-3/4 - 6 2.750 2.20

3.385 5.51 M10 x 1.5 0.79 0.63 2.569.0 7-879-9061

L0 4-1/2 - 6 3.250 2.60 9.5 7-879-9062

8" 7.87L00 3-3/4 - 6 2.750 2.20

4.330 6.93 M10 x 1.5 0.79 0.672.56 15.0 7-879-9081

L0 4-1/2 - 6 3.250 2.60 2.56 15.4 7-879-9082L1 6 - 6 4.125 3.35 2.99 16.5 7-879-9083

10" 9.84L00 3-3/4 - 6 2.750 2.20

5.708 8.82 M12 x 1.75 0.91 0.752.76 25.0 7-879-9101

L0 4-1/2 - 6 3.250 2.60 2.76 26.1 7-879-9102L1 6 - 6 4.125 3.35 2.99 37.0 7-879-9103

12-1/2" 12.40L0 4-1/2 - 6 3.250 2.60

7.086 11.26 M16 x 2 0.91 0.752.76 37.0 7-879-9122

L1 6 - 6 4.125 3.35 2.99 37.0 7-879-9123L2 7-3/4 - 5 5.250 4.29 3.50 38.8 7-879-9124

15-3/4" 11.75L1 6 - 6 4.125 3.35

- 6.75 5/8 - 11 0.87 -2.95 34.2 7-879-9163

L2 7-3/4 - 5 5.250 4.29 3.46 45.4 7-879-9164L3 10-3/8 - 4 6.500 5.43 3.94 67.2 7-879-9165

20" 16.02 L2 7-3/4 - 5 5.250 4.29 - 9.25 3/4 - 10 1.18 - 3.66 60.2 7-879-9264

Fully Machined Type L Steel Adapters for SET-TRU Chucks

Type L

Chuck Diameters: 15-3/4" thru 25"Chuck Diameters: 5" thru 12-1/2"

Type 8255

Chuck Base Plates for Rotary Tables• Perfect for all rotary tables with 3/6 and 4/8 T-Slots• Designed for use with BISON SET-TRU chucks• See page 166 for more information

ChuckDiameter

MT Pin Base Plate

MT PartNumber

Wtlbs

PartNumber

5" 2 7-872-932 3.9 7-872-6056-1/4" 3 7-872-933 11.5 7-872-6068" 3 7-872-933 16.8 7-872-60810" 3 7-872-933 27.4 7-872-610

12-1/2" 3 7-872-933 46.3 7-872-61215-3/4" 4 7-872-934 40.0 7-872-61620" 5 7-872-935 77.0 7-872-620

Type 8298

Chuck Base Plates for Milling Machine Tables• Perfect for all milling machine tables• Designed for use with BISON SET-TRU chucks• See page 166 for more information

ChuckDiameter

Base PlateWtlbs

PartNumber

6-1/4" 10.3 7-630-6068" 16.2 7-630-60810" 25.0 7-630-610

12-1/2" 35.5 7-630-612

Type 9452

Fully Machined 5C Steel Adaptersfor 3 and 6-Jaw SET-TRU Chucks• Adapters and SET-TRU chucks are sold separately

ChuckDiameter

DOAL

ChuckBody

Height**

GrippingRangeMin-Max

3-JawChucks

6-JawChucks

5CAdapter

Part Number4" 7.29 2.68 .12 - 3.66 7-866-8040* 7-868-8040* 7-912-3045" 7.12 2.362 .12 - 4.92 7-866-0500 7-868-0500 7-912-305

6-1/4" 7.95 2.677 .12 - 6.3 7-866-0600 7-868-0600 7-912-306

* 4" solid jaws only** Chuck dimensions can be found on page 25

Type 8288Type 3864Type 3564

Back View

SET-TRU ADAPTERS

BISON


SET-TRU SPARE PARTS

SET-TRUCH

UCKS

BISON


ChuckDia

2-Jaw 3-Jaw 4-Jaw 6-JawPart Number

5" - 7-885-305 - 7-885-6056-1/4" 7-885-206 7-885-306 7-885-406 7-885-6068" 7-885-208 7-885-308 7-885-408 7-885-60810" 7-885-210 7-885-310 7-885-410 7-885-610

12-1/2" 7-885-212 7-885-312 7-885-412 7-885-61215-3/4" - 7-885-316 - 7-885-61620" - 7-885-320 - 7-885-62025" - 7-885-325 - 7-885-625

ChuckDiameter M H G J K D E F N C B OAL

A O P3-Jaw 4-Jaw 6-Jaw

Wt of Set lbs5" 5/8 57/64

.4996.35 .59

.3129

.157

.1260

.315 1.516 .866 2.205 .57 1.38 0.93 - 1.906-1/4" 3/4 1-1/8

.43 .71.335 1.634 .984 2.638 .71 1.63 1.20 1.60 2.40

8" 7/8 1-3/8 .374 1.713 1.063 3.347 .85 2.01 2.10 2.80 4.2010" 1-1/16 1-9/16

.7496

.55 .78

.5004

.472 2.023 1.280 3.740 .96 2.32 3.20 4.27 6.4012-1/2" 1-1/4 1-7/8 .512 2.165 1.457 4.331 1.04 2.68 5.10 6.80 10.2015-3/4"

1-1/2 2-1/4.71 1.0

.2480.532 2.539 1.654

5.0001.06 3.01 7.30 - 14.60

20".87 1.3

.689 2.933 1.654 1.97 3.46 14.40 - 28.8025" .827 3.228 2.047 2.01 3.50 27.10 - 44.20

ChuckDiameter

K H G F J S L D E B OALA

ThreadM

2-Jaw 3-Jaw 4-Jaw 6-Jawinches Wt of Set - lbs

5" 5/8 57/64.4996 5/16

.1575 .1260

.4724 .3150 .3150 .7874 2.1259 5/16 - 18 - 0.93 - 1.96-1/4" 3/4 1-1/8 .5511 .3150 .3150 .7874 2.5590

3/8 - 16.80 1.20 1.60 2.40

8" 7/8 1-3/8 .5511 .3543 .3937 .9843 3.1102 1.40 2.10 2.80 4.2010" 1-1/16 1-9/16

.7496 1/2

.6299 .4331.4724

1.1024 3.62201/2 - 13

2.13 3.20 4.27 6.4012-1/2" 1-1/4 1-7/8 .6299 .5000 1.2598 4.3307 3.40 5.10 6.80 10.2015-3/4"

1-1/2 2-1/4 .2835 .2480.8661 .5906

.55121.4173 5.1181 5/8 - 11 - 7.30 - 14.60

20"1.2598 .6299

1.5748 6.53513/4 - 10

- 14.4 - 28.8025" 1.9685 8.2677 - 27.1 - 44.20

Hard Master Jaws for 2, 3, 4 and 6-Jaw SET-TRU Chucks• American Standard Tongue and Groove Jaws• Sold in sets

5" to 10" Diameters 20" Diameter 25" to 32" Diameters12" and 16" Diameters

3 Piece Set 6 Piece Set

ChuckDiameter

3-Jaw 4-Jaw 6-JawPart Number

5" 7-883-305 - 7-883-6056-1/4" 7-883-306 7-883-406 7-883-6068" 7-883-308 7-883-408 7-883-60810" 7-883-310 7-883-410 7-883-610

12-1/2" 7-883-312 7-883-412 7-883-61215-3/4" 7-883-316 - 7-883-61620" 7-883-320 - 7-883-62025" 7-883-325 - 7-883-625

Hard Top Jaws for 2, 3, 4 and 6-Jaw Chucks• American Standard Tongue and Groove Jaws• Sold in sets

3 Piece Set 6 Piece Set

Jaw mounting bolts can befound on page 37

All solid jaws and master jaws are manufacturedto Bison’s rigid specifications

SET-TRU SPARE PARTS

BISON


ChuckDiameter

C L B F E N P O Wt of Set - lbs 3-Jaw 4-Jaw 6-Jawinches 3-Jaw 4-Jaw 6-Jaw Part Number

4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .58 - 1.16 7-880-304 - 7-880-6045" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.319 .512 1.2 - 2.4 7-880-305 - 7-880-605

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 2.4 3.2 4.8 7-880-306 7-880-406 7-880-6068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 3.2 4.3 6.5 7-880-308 7-880-408 -10" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 5.2 7.0 10. 7-880-310 7-880-410 7-880-610

12-1/2" 2.8740 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 8.7 12 18 7-880-312 7-880-412 7-880-612

ChuckDiameter

C L B F E N P O Wt of Set - lbs 3-Jaw 4-Jaw 6-Jawinches 3-Jaw 4-Jaw 6-Jaw Part Number

4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .58 - 1.16 7-881-304 - 7-881-6045" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.319 .512 1.2 - 2.4 7-881-305 - 7-881-605

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 2.4 3.2 4.8 7-881-306 7-881-406 7-881-6068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 3.2 4.3 6.5 7-881-308 7-881-408 7-881-60810" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 5.2 7.0 10. 7-881-310 7-881-410 7-881-610

12-1/2" 2.8740 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 8.7 12 18 7-881-312 7-881-412 7-881-612

O.D. Hard Solid Jaws for 3, 4 and 6-Jaw Chucks• Sold in sets

I.D. Hard Solid Jaws for 3, 4 and 6-Jaw Chucks• Sold in sets

SET-TRU SPARE PARTS

SET-TRUCH

UCKS

BISON


ChuckDiameter

C L B F E N P O Wt of Set - lbs 3-Jaw 4-Jaw

inches 3-Jaw 4-Jaw Part Number4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .86. - 7-882-304 -5" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.319 .512 1.7 - 7-882-305 -

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 3.3 4.4 7-882-306 7-882-4068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 5.3 7.1 7-882-308 7-882-40810" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 9.0 12 7-882-310 7-882-410

12-1/2" 2.8740 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 13 17 7-882-312 7-882-412

Soft Solid Jaws for 3 and 4-Jaw Chucks• Sold in sets

ChuckDiameter A

B3, 4, and6-Jaw

B2-Jaw C D E F G H I J K

BoltSizeM

3, 4, and6-Jaw

Wt per Pclbs

2-JawWt per Pc

lbs

5" 2.520 0.866 - 1.520.3129

0.5910 1-1/4.500

1.000

.1260.283

- 5/16 - 18 .66 -6-1/4" 3.071 1.000 1.575 1.634 0.8386 1-1/2 1.339 .118

3/8 - 161.01 1.40

8" 3.543 1.063 1.575 1.713 0.9488 1-3/4 1.575 .197 1.43 2.0010" 4.173 1.280 1.850 2.028

.5000

1.0827 2-1/8

.750

1.772 .3151/2 - 13

2.54 3.3012-1/2" 4.724 1.457 2.047 2.165 1.2087 2-1/2 2.087

.2480

.394 3.53 4.6015-3/4" 5.512 1.654 - 2.539 1.3443

3 2.480 .406.512 5/8 - 11 4.85 -

20" 5.512 1.654 - 2.9331.3543

-3/4 - 10

5.29 -25" 6.299 2.047 - 3.288 - 9.26 -

ChuckDiameter

2-Jaw 3 and 4-Jaw 6-JawPart Number

5" - 7-884-305 -6" 7-884-206 7-884-306 7-884-6068" 7-884-208 7-884-308 7-884-60810" 7-884-210 7-884-310 7-884-61012" 7-884-212 7-884-312 7-884-61216" - 7-884-316 7-884-61620" - 7-884-320 -25" - 7-884-325 -

Soft Top Jaws for 2, 3, 4 and 6-Jaw Chucks• American Standard Tongue and Groove Jaws• Sold by piece

For 2, 3 and 4-Jaw Chucks For 6-Jaw Chucks

SET-TRU SPARE PARTS

BISON


ChuckDiameter

Screw Sizemm L No. of

ScrewsHex Key

Part NumberScrew

Part Number

4"M10 x 1

1.02 46-999-585 7-897-6040

M12 x 16-999-586 7-897-6041*

5" 1.34

4

6-999-586 7-897-60516"

M18 x 1

1.42 6-999-590 7-897-60618" 1.70 6-999-590 7-897-608110" 2.03 6-999-590 7-897-610112" 2.62 6-999-590 7-897-612116" 1.93

86-999-590 7-897-6161

20" 1.77 6-999-590 7-897-620125" 4.33 6-999-590 7-897-6251

Fine Adjustment Screws• Sold by piece

ChuckDiameter

Scroll Pinion Wrench** Pinion Sleeve Half Ring

D H Wtlbs

PartNumber D H Wt

lbsPart

NumberSquareSize

PartNumber ID Part

Number D PartNumber

4" 2.74 0.49 0.34 7-887-3040.98

1.4 0.12 7-886-3040.35

7-889-005 - - - 7-888-904*5" 3.7 0.63 0.84 7-887-505 1.44 0.13 7-886-505 7-889-005 0.98 7-888-505 1.52 7-888-7056" 4.88 0.83 2.03 7-887-506 1.1 1.57 0.18 7-886-506

0.437-889-008 1.1 7-888-506 1.72 7-888-706

8" 6.24 0.94 3.62 7-887-508 1.2 1.99 0.37 7-886-508 7-889-008 1.2 7-888-508 1.85 7-888-70810" 7.82 1.1 4.54 7-887-510 1.4 2.36 0.44 7-886-510

0.557-889-012 1.4 7-888-510 1.94 7-888-710

12" 10.1 1.2 10.2 7-887-512 1.5 2.85 0.71 7-886-512 7-889-012 1.5 7-888-512 2.17 7-888-71216" 12.9 1.3 22.7 7-887-516 1.7 3.66 1.3 7-886-516 0.67 7-889-016 1.7 7-888-516 2.42 7-888-71620" 16.4 1.2 36.4 7-887-520

24.45 2.1 7-886-520

0.757-889-025

27-888-520 2.76 7-888-720

5.24 2.5 7-886-525 7-889-025 7-888-525 2.95 7-888-725

Spare Parts for 2, 3, 4 and 6-Jaw Chuckswith Forged Steel Body

* Pinion retaining screw** Wrenches are spring loaded for the operator’s safety

Removal of the spring is not recommended and may void chuck warranty

* For 6-jaw chucks only

D=Outer DiameterH=HeightL=OAL

SET-TRU SPARE PARTS

SET-TRUCH

UCKS

BISON


ChuckDiameter

BoltSize L No. of

BoltsPart

Number

4" and 5" M8 x 1.25 2.756

3

7-897-7056"

M10 x 1.52.756 7-897-706

8" 3.149 7-897-70810" M12 x 1.75 3.543 7-897-71012" M16 x 2 3.937 7-897-71216" 5/8 x 11 4.330

67-897-716

20"3/4 x 10

4.724 7-897-72025" 5.118 7-897-725

Chuck Mounting Bolts• Sold by piece

ChuckDiameter Thread

Screw No.1 Screw No.2Short Screw Long Screw

L Part:Number L Part

Number5" 5/16 - 18

.797-897-503 1.00 7-897-504

6"3/8 - 16

7-897-5101.18

7-897-5128" 7-897-511 7-897-513

10" and 12" 1/2 - 13 1.00 7-897-530 1.57 7-897-53116" 5/8 - 11 1.18 7-897-540 1.77 7-897-54120"

3/4 - 10 1.577-897-560 2.95 7-897-561

25" 7-897-560 3.15 7-897-562

TaperSize

Camlock Studs No. ofStuds

Set Screw

Diameter Thread PartNumber

PartNumber

D1-3 9/16"M10 x 1

7-899-1033

7-899-305D1-4 5/8" 7-899-104D1-5 3/4" M12 x 1 7-899-105

6D1-6 7/8" M16 x 1.5 7-899-106

7-899-310D1-8 1" M20 x 1.5 7-899-108D1-11 1-3/16" M22 x 1.5 7-899-111D1-15 1-3/8" M24 x 1.5 7-899-115

Type C, DIN Studs• Sold by piece

Camlock Studs and Set Screws• Sold by piece

Mounting Bolts for Hard and Soft Top Jaws• Sold by piece

L

L

TaperSize

StudDiameterinch

StudDiametermm

Threadmm

No. ofStuds

PartNumber

C-4 .7677 19.5 M10 - 39 3 7-921-904C-5 .7677 19.5 M10 - 43

47-921-905

C-6 .8465 21.5 M12 - 50 7-921-906C-8 1.063 27.0 M16 - 60 7-921-908C-11 1.339 34.0 M20 - 75 6 7-921-911

3 and 4-Jaw Self-Centering Scroll ChucksForged Steel, High Speed• Extremely accurate, and guaranteed to maintain

exceptional accuracy for an extended period of time• Chucks have a modern and compact design• Able to fulfill the highest demands of our customers,

and are used whenever high precision machiningis needed

Chuck Body• Drop forged of high grade steel and then put through

precise machining operations• All bearing surfaces are carefully hardened and

precisely ground

Scroll Plate• Drop forged of fine quality alloy steel, and carefully

case hardened• Thread flanks are ground on both sides• Each scroll is balanced

Jaws• Made of fine alloy steel

Teeth and Guides• Hardened and fully ground on both sides

Pinions• Hardened and ground fine alloy steel

Bushings• Made of fine alloy steel• Hardened and ground, then pressed into the

pinion seats

Precision grinding of scroll plate and jaw teethallows you to:• Eliminate the possibility of deformation as a result

of heat treatment• Reach uniform radial gripping force on all teeth of jaws• Increase guarantee period for high centering accuracy• Increase the gripping force

1. Chuck Body2. Back Cover3. Scroll Plate 7-887-5...4. Pinion 7-886-5...5. Pinion Half Ring 7-888-7...6. Pinion Sleeve 7-888-5..7. Hard Master Jaws 7-885-...8. Hard Top Jaws 7-883-...9. Grease Nipple10. Back Cover Mounting Bolts11. Chuck Mounting Bolts 7-897-...12. Back Cover Locating Pin13. Mounting Bolts14. Chuck Wrench 7-889-0...15 and 16. Jaw mounting bolts 7-897-5..

Hardenedand GroundSurfaces

Outstanding Accuracy and Quality

American StandardTongue and Groove Jaws

Bison recommended chuck grease:Part Number 7-799-025

Spare Parts: page 51Adapter Plates: pages 43-46

• Each chuck is provided with a lubricator enablingcurrent maintenance, and extending the life ofchuck components

• Each scroll chuck is assembled and staticallybalanced to high tolerance levels

• Interstage and final inspections assure high quality

PRECISION CHUCKS

BISON


PRECISION CHUCKS

PRECISION

CHU

CKSBISON




Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Forged steel body• 3 Pinion design• 2 Eye bolts for chuck sizes 15-3/4" diameter

and larger

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

5" 1.3976 4800 11 7-820-05006-1/4" 1.6535 4500 22 7-820-06008" 2.1654 4000 39 7-820-080010" 2.9921 3500 55 7-820-1000

12-1/2" 4.0551 2800 110 7-820-120015-3/4" 5.3543 2000 187 7-820-160020" 7.480 1200 320 7-820-200025" 9.921 1000 551 7-820-250032" 10.50 450 886 7-820-3200

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

4" .7874 5200 6.17 7-829-04005" 1.3976 4800 11 7-829-0500

6-1/4" 1.6535 4500 22 7-829-06008" 2.1654 4000 39 7-829-080010" 2.9921 3500 55 7-829-1000

12-1/2" 4.0551 2800 110 7-829-1200

Each chuck is provided with:• 1 Set of hard solid ID jaws• 1 Set of hard solid OD jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Forged steel body• 3 Pinion design• 2 Eye bolts for chuck sizes 15-3/4"

diameter and larger

Each chuck is provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Forged steel body• 2 Pinion design• 2 Eye bolts for chuck sizes 15-3/4"

diameter and larger

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

PartNumber

6-1/4" 1.6535 4500 22 7-841-06008" 2.1654 4000 39 7-841-080010" 2.9921 3500 55 7-841-1000

12-1/2" 4.0551 2800 110 7-841-120015-3/4" 5.3543 2000 187 7-841-160020" 7.480 1200 320 7-841-200025" 9.921 1000 551 7-841-2500

Front View of 20" and 25" ChucksSee following page for T-slot Dimensions

3 and 4-Jaw Self-Centering Scroll ChucksForged Steel Body Plain Back Chucks, Adapter Plates Required

Type 3505

Type 3705

Type 3504

Front View Back View


PRECISION CHUCKS

BISON


L

A

B

E

C

ChuckDiameter A B

(HB) C E T-slotLength

20" .9055" .5512" .2362" .8268" 4.51"25" 1.1811" .7087" .4724" 1.0236" 5.08"

Clamping Ranges for 3 and 4-Jaw Chuckswith Two-Piece Reversible Jaws and Solid Jaws

ChuckDiameter 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25"

SolidJaws

d1 .118 - 1.30 .118 - 1.97 .118 - 2.52 .157 - 3.54 .197 - 4.65 .394 - 5.16 - - -d2 1.26 - 2.44 1.54 - 3.27 1.97 - 4.21 2.36 - 5.71 3.03 - 7.40 3.54 - 8.46 - - -d3 2.44 - 3.27 3.15 - 4.92 3.86 - 6.30 5.12 - 7.87 6.30 - 9.84 7.48 - 12.40 - - -d4 .98 - 2.20 1.34 - 2.91 1.65 - 3.94 2.05 - 5.31 2.44 - 6.85 3.07 - 7.87 - - -d5 2.20 - 3.43 2.83 - 4.53 3.70 - 6.06 4.72 - 7.95 5.71 - 10.08 6.77 - 11.77 - - -

Two-PieceJaws

d1 - .118 - 1.97 .118 - 2.52 .157 - 3.54 .197 - 4.65 .394 - 5.16 .394 - 7.09 .787 - 9.25 1.18 - 13.19d2 - 2.05 - 3.78 2.44 - 4.76 2.83 - 6.14 3.39 - 7.76 4.06 - 8.90 5.00 - 11.57 4.33 - 15.75 4.72 - 22.44d3 - 3.74 - 4.92 4.53 - 6.30 5.24 - 7.87 6.30 - 9.84 7.48 - 12.40 9.06 - 15.75 7.48 - 19.69 7.87 - 24.80d4 - 1.34 - 2.99 1.65 - 3.81 1.97 - 5.12 2.28 - 6.50 2.56 - 7.17 2.84 - 8.98 4.72 - 16.14 5.51 - 23.23d5 - 2.95 - 4.65 3.46 - 5.75 4.13 - 7.48 4.92 - 9.25 5.71 - 10.43 6.50 - 12.95 7.87 - 19.09 8.27 - 26.18

T-slot Dimensions

3-Jaw Chuck T-slot Dimensions for 20" and 25" Diameter Chucks Only

ChuckDiameter

DF E d C H h

Adapter Mounting Bolts

ThreadM L

No.of

Bolts

PartNumber

4" 3.2677 2.7559 0.7874 .1181 1.969 -M8 x 1.25

0.983 7-897-105

5" 4.2520 3.7402 1.3976 .1575 2.422 1.5756-1/4" 5.5118 4.9213 1.6535 .1575 2.756 1.693

M10 x 1.5

6

7-897-1088" 6.9291 6.2992 2.1654 .1575 3.150 1.77210" 8.8189 7.8740 2.9921 .1969 3.543 2.087 M12 x 1.75

1.187-897-110

12-1/2" 11.2598 10.2362 4.0551 .1969 3.937 2.244

M16 x 2

7-897-11215-3/4" 14.2519 12.9921 5.3543 .1969 4.331 2.639

1.577-897-125

20" 18.0314 16.5354 7.4803 .1969 4.685 3.1507-897-125

25" 23.0709 21.4567 9.9212 .2756 5.079 3.42532" 14.5000 17.7165 12.5984 .7874 6.2598 2.7559 1-8 6.00 7-897-584

3 and 4-Jaw Self-Centering Scroll ChucksPrincipal Dimensions - Back Mounting

PRECISION CHUCKS

PRECISION

CHU

CKSBISON


3-Jaw, Type A1/A2, Direct Mount Self-Centering Scroll Chuckswith Two Piece Hard Reversible Jaws• Forged steel body• High speed• Type A1 spindle has a 2 bolt hole pattern, inside (size B1), and

outside the taper (size B). Either an A1 or A2 chuck will fit• Type A2 spindle has 1 bolt pattern, outside the taper (size B)

Only an A2 chuck will fit

ChuckDiameter

TaperSize

HoleDiameter

d

RPMmax

Wtlbs

B(A2)

B1(A1) G C/C1* H h

Screws M ChuckPart

NumberThread L Qty PartNumber

6-1/4" A1-5 1.6535 4500 22 -2.4374 3.2505 .563

2.6772 1.6937/16-14

2-3/83

7-897-520 7-821-0615

8"A1-5 1.6535

4000 42-

3.0709 1.772 2-3/47-897-521 7-821-0815

A1-6 2.1653 -3.2500 4.1880 .625 1/2-13

7-897-532 7-821-0816

10"A1-6 2.1653

3500 71-

3.5039 2.0873-1/8

6

7-897-533 7-821-1016A1-8 2.9921 - 4.3750 5.5007 .688 5/8-11 2-3/4 7-897-542 7-821-1018

12-1/2"A2-6 4.0551

2800 1215.2520 - 4.1880 .630

3.7874 2.2441/2-13 4 7-897-535 7-821-1226

A1-8 3.1496 - 4.37505.5007

.6885/8-11

3-1/8 7-897-543 7-821-1228

15-3/4"A2-8 5.3543

2000 2036.7480 - .709

4.2520 2.6394-1/2 7-897-550 7-821-1628

A1-11 5.1181 - 6.5000 7.7507 .750 3/4-10 4-1/2 7-897-563 7-821-1629

20"A2-8 5.3543

1200 3536.7480 - 5.5007 .709

4.6850 3.0915/8-11

4-3/47-897-551 7-821-2028

A2-11 7.4803 9.2520 -7.7507

.7873/4-10

7-897-568 7-821-2029

25"A2-11 7.4803

1000 6289.2520 - .750

5.0787 3.4255-5/16 7-897-566 7-821-2529

A2-15 9.9213 13.000 - 11.251 .813 7/8-9 5-1/8 7-897-571 7-821-2530

Type A Type 3515

Type A2

Type A1

*C=C1, depth of counterbore

PRECISION CHUCKS

BISON


3-Jaw, Type D, Direct Mount Self-Centering Scroll Chuckswith Two Piece Hard Reversible Jaws• Forged steel body• High speed• No machining required

ChuckDiameter

D

TaperSize

HoleDiameter

d

RPMmax

Wtlbs B G C H h

Camlock Studs CamlockSet Screw

PartNumber

ChuckPart

NumberOD Thread Qty Part Number

6-1/4"D1-3

1.6535 4500 202.7795 2.1250

.51182.6772 1.693

9/16M10x1 3

7-899-103

7-899-305

7-823-0633D1-4 3.2520 2.5005 5/8 7-899-104 7-823-0634D1-5 4.1260 3.7505

.5629 3/4 M12x1

6

7-899-1057-823-0635

8"D1-5

2.1653 4000 424.1260 3.2505

3.0719 1.7727-823-0835

D1-6 5.2520 4.1880.6299 7/8 M16x1.5 7-899-106

7-899-310

7-823-0836

10"D1-6

2.9921 3500 715.2520 4.1880

3.5039 2.0877-823-1036

D1-8 6.7480 5.5007 .7087 1 M20x1.5 7-899-108 7-823-1038

12-1/2"D1-6

4.0551 2800 1125.2520 4.1880 .6299

3.78742.244

7/8 M16x1.5 7-899-106 7-823-1236D1-8 6.7480 5.5007 .7087 1 M20x1.5 7-899-108 7-823-1238D1-11 9.2520 7.7507 .7874 4.3976 1-3/16 M22x1.5 7-899-111 7-823-1239

15-3/4"D1-8

5.3543 2000 2236.7480 5.5007 .7087

4.2570 2.6391 M20x1.5 7-899-108 7-823-1638

D1-11 9.2520 7.7507 .7874 1-3/16 M22x1.5 7-899-111 7-823-1639

20"D1-8 5.3543

1200 3316.7480 5.5007 .7087

4.6850 3.1501 M20x1.5 7-899-108 7-823-2038

D1-11 7.5984 9.2520 7.7507 .7874 1-3/16 M22x1.5 7-899-111 7-823-2039

25"D1-8 5.3543

1000 6046.7480 5.5007 .7087

5.0787 3.4251 M20x1.5 7-899-108 7-823-2538

D1-11 7.4803 9.2520 7.7507 .7874 1-3/16 M22x1.5 7-899-111 7-823-2539

Type D Type 3545

CAST IRON ADAPTERS

PRECISION

CHU

CKSBISON


Rough-Finished Threaded Adapters for Threaded Spindles

ChuckDiameter A B C D h E Wt

lbsThread

MPart

Number

4" 1.5352.165 1.01500

4.095 .709 .5000 81-10 7-871-041

2.677 1.51421 1-1/2-8 7-871-042

5" 1.5352.165 1.01500

5.079 .709 .5000 101-10 7-871-051

2.677 1.51421 1-1/2-8 7-871-052

6-1/4"1.535

3.1891.51421

6.535 .787.5000

121-1/2-8 7-871-062

1.791 2.26000 .6260 2-1/4-8 7-871-063

8"1.535

3.5831.51421

8.110 .866.5000 12 1-1/2-8 7-871-082

1.791 2.26000 .6260 13 2-1/4-8 7-871-083

10"1.791

4.1732.26000

10.079 .984.6260 22 2-1/4-8 7-871-103

2.047 2.38500 .7480 25 2-3/8-6 7-871-104

12-1/2" 2.047 4.3312.38500

12.638 1.102 .7480 332-3/8-6 7-871-124

2.76000 2-3/4-8 7-871-125

ChuckDiameter A Thread

D C B B1 E Wtlbs

PartNumber

5" 4.92M39 x 4 3.00 2.00 .75

.626011

7-922-0512-3/16 - 10 3.11 1.61 .689 7-922-053

6-1/4" 6.3 2-3/16 - 10 3.11 1.61 .768 13 7-922-063

Fully Machined Threaded Adapters for Threaded Spindles

NOTE: Rough Finished Adapters, see pages 47 and 62 for mounting instructions

NOTE: Part number series 7-922- adaptersrequire some machining on the counterbore projection,see pages 47 and 62 for more information

Type 8206

Type 8204

CAST IRON ADAPTERS

BISON


ChuckDiameter

TaperSize

StudDiameter

No.of

Studs

HoleDiameter

CD G

Fully Machined*** Semi-Machined**

DiameterA B B1 Wt

lbsPart

NumberDiameter

AWtlbs

FlangeThickness

B

PartNumber

4" D1-4 5/8

3

2.40 3.25 2.50 3.97 1.12 .87 3.65 7-878-044 - - - -

5"D1-3 9/16 2.02 2.78 2.13

4.94 1.02.57

5.37-878-053 - - - -

D1-4 5/8 2.40 3.25 2.50 .87 7-878-054 - - - -

6-1/4"

D1-3 9/16 2.02 2.78 2.13

6.32

1.06 .71

9.5

7-878-0636.38 9.3

1.02 7-878-0630D1-4 5/8 2.40 3.25 2.50 1.06 .71 7-878-064 1.14 7-878-0640D1-5 3/4

63.13 4.13 3.25 1.18 1.0 7-878-065 1.14 7-878-0650

D1-6 7/8 4.06 5.25 4.19 1.44 1.32 7-878-066 - - - -D1-8 1 4.16 6.75 5.50 1.69 1.53 7-878-068* - - - -

8"

D1-3 9/163

2.02 2.78 2.13

7.89

1.06 .71

15.4

7-878-083

8.00 27

1.73 -D1-4 5/8 2.40 3.25 2.50 1.06 .71 7-878-084 1.73 7-878-0840D1-5 3/4

6

3.13 4.13 3.25 1.18 .71 7-878-085 1.97 7-878-0850D1-6 7/8 4.06 5.25 4.19 1.44 1.26 7-878-086 1.38 7-878-0860

10"D1-5 3/4 3.13 4.13 3.25

9.861.18 .87 24.3 7-878-105

9.96 35 1.937-878-1050

D1-6 7/8 4.06 5.25 4.19 1.44 .87 24.3 7-878-106 7-878-1060D1-8 1 5.35 6.75 5.50 1.54 1.36 39.7 7-878-108 7-878-1080

12-1/2"D1-6 7/8 4.06 5.25 4.19

12.421.56 .94

39.77-878-126

12.52 492.76 7-878-1260

D1-8 1 5.35 6.75 5.50 1.65 .94 7-878-128 2.17 7-878-1280D1-11 1-3/16 7.59 9.25 7.75 1.85 1.36 7-878-129 2.17 7-878-1290

15-3/4"D1-6 7/8 4.06 5.25 4.19

15.771.44

1.10 797-878-166

15.94 932.17 7-878-1660

D1-8 1 5.35 6.75 5.50 1.54 7-878-168 2.76 7-878-1680D1-11 1-3/16 7.59 9.25 7.75 1.85 7-878-169 1.96 7-878-1690

20"D1-8 1 5.35 6.75 5.50

19.701.54

1.14 1327-878-208

19.88 1591.81 7-878-2080

D1-11 1-3/16 7.59 9.25 7.75 1.85 7-878-209 2.83 7-878-2090

25”D1-11 1-3/16 7.59 9.25 7.75

24.821.85

1.14 2327-878-259 25.00 232 2.83 7-878-2590

D1-15 1-3/8 11.00 13.0 11.25 1.97 7-878-265* - - - -** See mounting instructions on page 47*** The projection on the backplate must be sized to fit each chuck

Semi-Machined and Fully Machined Type D1 Adapters• The number of camlock studs needed varies depending

on the spindle size, so please refer to the table below• Plain back chucks require adapter plates which may

require machining to fit• Designed for direct mounting on camlock spindle nose

Fully Machined D1 Adapters Semi-Machined D1 Adapters

Type 8242Type 8240

CAST IRON ADAPTERS

PRECISION

CHU

CKSBISON


Semi-Machined and Fully Machined Type A1/A2 Adapters• For plain back chucks• Designed for direct mounting on A1 and A2 spindle nose• May be used for both scroll and independent chucks• Provided with spindle mounting bolts• See mounting instructions on page 47

ChuckDiameter

TaperNo A B C D E Wt

lbsSemi-Machined**

Part NumberWtlbs

Fully Machined***Part Number

5"A-6

5.001.02 2.13 5.25 4.19

6.57-873-056

5.37-873-0560

A-8 1.81 3.15 6.75 5.50 7-873-058 -6-1/4" A-5 6.40 1.00 3.13 4.125 3.25 6.5 7-873-065 - -

8"A-5

7.991.5

1.54.125 3.25 19 7-873-085 18 7-873-0850

A-6 1.3 5.25 4.19 15.5 7-873-086

- -

10"A-6

9.961.3

3.175.25 4.19 38 7-873-106

A-8 1.97 6.75 5.50 33 7-873-108

12-1/2"A-6

12.521.3

4.065.25 4.19 45 7-873-126

A-8 2.17 6.75 5.50 62 7-873-128

15-3/4"A-8

15.941.7

5.366.75 5.50 85 7-873-168

A-11 2.17 9.25 7.75 141 7-873-16920" A-11 19.88 1.77 7.59 9.25 7.75 133 7-873-209

25"A-11

25.001.77 7.59 9.25 7.75 158 7-873-259

A-15 2.205 7.60 13.00 11.25 218 7-873-2595A-20 2.205 16.00 18.25 16.25 156 7-873-2598

** Semi-Machined backplates should be the first alternative for independent chucks

*** Fully Machined backplates supplied with the spindle mounting bolts

NOTES: Adapters require some machining on the counterbore projection, see page 47 for more information

The projection on the backplate must be sized to fit each chuck

Type 8212 Type 8210

Semi-MachinedType 8212

Fully MachinedType 8210

CAST IRON ADAPTERS

BISON


ChuckDiameter

TaperNo

ThreadDiameter A B C B1 Wt

lbsPart

Number5" L00 3-3/4"-6 4.92 2.13 2.2 0.71 10 7-879-051

6-1/4"L00 3-3/4"-6

6.322.13 2.2

0.71 137-879-061

L0 4-1/2"-6 2.52 2.6 7-879-062

8"L00 3-3/4"-6

7.912.13 2.2

0.71 227-879-081

L0 4-1/2"-6 2.52 2.6 7-879-082L1 6"-6 2.99 3.35 7-879-083

10"

L00 3-3/4"-6

9.88

2.13 2.20

0.83 33

7-879-101L0 4-1/2"-6 2.52 2.60 7-879-102L1 6"-6 2.99 3.35 7-879-103L2 7-3/4"-5 3.50 4.29 7-879-104

12-1/2"L0 4-1/2"-6

12.442.52 2.60

1.10 577-879-122

L1 6"-6 2.99 3.35 7-879-123L2 7-3/4"-5 3.50 4.29 7-879-124

15-3/4"

L0 4-1/2"-6

15.83

2.52 2.60

1.10 95

7-879-162L1 6"-6 2.99 3.35 7-879-163L2 7-3/4"-5 3.50 4.29 7-879-164L3 10-3/8"-4 4.02 5.43 7-879-165

20"L2 7-3/4"-5

19.763.50 4.29

1.14 1597-879-204

L3 10-3/8"-4 4.02 5.43 7-879-205

25"L2 7-3/4"-5

24.823.78 4.29

1.38 3977-879-254

L3 10-3/8"-4 4.02 5.43 7-879-255

Fully Machined Type L Adapters• For plain back, self-centering chucks• For direct mounting on type L spindle nose• See mounting instructions on page 47

NOTE: Adapters require some machining on thecounterbore projection, see page 47

Type 8250

SPARE PARTS

PRECISION

CHU

CKSBISON


Installation Instructions for Mounting Back Platesonto SpindlesAll Bison semi-machined and fully machined backplates will have the mounting dimensionsfor their respective spindles fully machined. The fully machined backplates are designed forscroll plain back chucks, which are .030", etc. They can be used on other styles/models,but the existing bolt hole patterns have to be reviewed for mounting interference.

In all cases, the backplates will have to be finished/machined on the mounting projection,both on the OD (approximately .030" oversize) and the length.

1. With an indicator check the spindle to see if there is any radial or axial runout.Refer to the chuck manual for spindle nose accuracy.

2. Wipe the protective factory grease off the backplate, then mount it to therespective spindle making sure that all fastening components aretorqued appropriately.

3. When initially installing the bolts, leave finish tightening to a second pass,and make sure to alternate to the opposite bolt to evenly distribute pressureacross the spindle’s taper. Using the dial indicator, recheck the radial and axialbackplate runout. If there are major differences, loosen the backplate and refit it.

4. Once the backplate is in place, a technique used to further ensure a closetolerance to the chuck would be to blue the front face of the backplate andtake a skim cut. In most cases this is not required.

5. Next, measure the OD and depth of the counterbore on the backside of thechuck; these will become your working dimensions for final sizing. Dependingon the size of the chuck, the OD should be .001" to .005" less than the ODdimension and the length can be approximately .015" to .030" shorter. Thisminus tolerance will eliminate the possibility of the projection pressing againstthe back of the chuck, which can impact the scroll and create unnecessaryfriction with the jaw teeth. This could make it difficult for the wrench to turnthe pinions and in turn the jaws. Machine the backplate until a snug fit has beenachieved; this may require removing the backplate.Note: The purpose of this backplate projection to the chuck counterbore is to relievethe stress on the mounting bolts, and is a critical part of maintaining chuckconcentricity.

6. The semi-machined backplates recommended for independent chucks donot have mounting holes, and will have to be machined to the chucks bolthole pattern. Dimensions are available in the BISON catalog, online athttp://www.toolmex.com/learn-more/online-catalogs.cfm, or by calling a customerservice representative at 800-992-4766 or 508-653-8897.

7. Bolt hole patterns may require removal of the backplate for machining. Oncemachined, follow the procedures from steps 2 and 3 before mounting.

8. Re-indicate the chuck for basic run out on the OD and Face.9. Take a round piece of ground stock and enclose the jaws. Then, indicate the

part for runout at the jaws, half way across its length, and at the end. This will giveyou an idea of the parameters that will have to be accounted for in part production.

SPARE PARTS

BISON



A O P3-Jaw 4-JawWt of Set - lbs

5" 5/8 57/64.4996

.35 .59.3129

.157

.1260

.315 1.516 .866 2.205 .57 1.38 0.93 -6-1/4" 3/4 1-1/8

.43 .71.335 1.634 .984 2.638 .71 1.63 1.20 1.60

8" 7/8 1-3/8 .374 1.713 1.063 3.347 .85 2.01 2.10 2.8010" 1-1/16 1-9/16

.7496

.55 .78

.5004

.472 2.023 1.280 3.740 .96 2.32 3.20 4.2712-1/2" 1-1/4 1-7/8 .512 2.165 1.457 4.331 1.04 2.68 5.10 6.8015-3/4"

1-1/2 2-1/4.71 1.0

.2480.532 2.539 1.654

5.0001.06 3.01 7.30 -

20".87 1.3

.689 2.933 1.654 1.97 3.46 14.40 -25" .827 3.228 2.047 2.01 3.50 27.10 -

ChuckDia

3-Jaw 4-JawPart Number

5" 7-885-305 -6-1/4" 7-885-306 7-885-4068" 7-885-308 7-885-40810" 7-885-310 7-885-410

12-1/2" 7-885-312 7-885-41215-3/4" 7-885-316 7-885-41620" 7-885-320 7-885-42025" 7-885-325 7-885-425

ChuckDiameter

K H G F J S L D E B OALA

ThreadM

3-Jaw 4-Jawinches Wt of Set - lbs

5" 5/8 57/64.4996 5/16

.1575

.1260

.4724.3150 .3150 .7874

2.1259 5/16-18 0.93 -6-1/4" 3/4 1-1/8

.55112.5590

3/8-161.20 1.60

8" 7/8 1-3/8 .3543 .3937 .9843 3.1102 2.10 2.8010" 1-1/16 1-9/16

.7496 1/2

.6299.4331

.47241.1024 3.6220

1/2-133.20 4.27

12-1/2" 1-1/4 1-7/8 .5000 1.2598 4.3307 5.10 6.8015-3/4"

1-1/2 2-1/4 .2835.8661 .5906

.55121.4173 5.1181 5/8-11 7.30 -

20"1.2598 .6299

1.5748 6.53513/4-10

14.4 -25" 1.9685 8.2677 27.1 -

Hard Master Jaws for 3 and 4-Jaw Steel Scroll Chucks• American Standard Tongue and Groove Jaws• Sold in sets

5" to 10" Diameters

20" Diameter 25" to 32" Diameters12" and 16" Diameters

ChuckDia

3-Jaw 4-JawPart Number

5" 7-883-305 -6-1/4" 7-883-306 7-883-4068" 7-883-308 7-883-40810" 7-883-310 7-883-410

12-1/2" 7-883-312 7-883-41215-3/4" 7-883-316 7-883-41620" 7-883-320 7-883-42025" 7-883-325 7-883-425

Hard Top Jaws for 3 and 4-Jaw Steel Scroll Chucks• American Standard Tongue and Groove Jaws• Sold in sets

Jaw Mounting Bolts• See page 72

All solid jaws and master jaws aremanufactured to Bison’s rigid specifications

SPARE PARTS

PRECISION

CHU

CKSBISON


ChuckDiameter

C L B F E N P O Hard Solid JawsWt of Set - lbs 3-Jaw 4-Jaw

inches 3-Jaw 4-Jaw Part Number4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .58 - 7-880-304 -5" 1.5748 2.0079 .7874

.3150 .3150.3150 1.319 .512 1.2 - 7-880-305 -

6-1/4" 2.0866 2.7559 .7874 .3937 1.772 .748 2.4 3.2 7-880-306 7-880-4068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 3.2 4.3 7-880-308 7-880-40810" 2.4803 4.1339 1.1024 .4331

.4724.5512 2.736 1.102 5.2 7.0 7-880-310 7-880-410

12-1/2" 2.8740 4.9213 1.2598 .5000 .7087 3.268 1.358 8.7 12 7-880-312 7-880-41215-3/4" 3.6220 5.7087 1.4173 .5906

.5512.8661 3.898 1.417 16 - 7-880-316 -

20" 3.9370 7.0866 1.5748.6299

1.0236 4.705 1.969 22 - 7-880-320 -25" 4.3307 8.8583 1.9685 1.1024 5.866 2.598 38 - 7-880-325 -

ChuckDiameter

C L B F E N P O Hard Solid JawsWt of Set - lbs 3-Jaw 4-Jaw

inches 3-Jaw 4-Jaw Part Number4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .58 - 7-881-304 -5" 1.5748 2.0079 .7874 .3150

.3150.3150 1.319 .512 1.2 - 7-881-305 -

6-1/4" 2.0866 2.7559 .7874 .3150 .3937 1.772 .748 2.4 3.2 7-881-306 7-881-4068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 3.2 4.3 7-881-308 7-881-40810" 2.4803 4.1339 1.1024 .4331

.4724.5512 2.736 1.102 5.2 7.0 7-881-310 7-881-410

12-1/2" 2.8740 4.9213 1.2598 .5000 .7087 3.268 1.358 8.7 12 7-881-312 7-881-41215-3/4" 3.6220 5.7087 1.4173 .5906

.5512.8661 3.898 1.417 16 - 7-881-316 -

20" 3.9370 7.0866 1.5748.6299

1.0236 4.705 1.969 22 - 7-881-320 -25" 4.3307 8.8583 1.9685 1.1024 5.866 2.598 38 - 7-881-325 -

O.D. Hard Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks• Sold in sets

I.D. Hard Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks• Sold in sets

SPARE PARTS

BISON


ChuckDiameter C L B F E N P O

Soft Solid JawsWt of Set - lbs 3-Jaw 4-Jaw

3-Jaw 4-Jaw Part Number4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .86 - 7-882-304 -5" 1.5748 2.0079

.7874 .3150 .3150.3150 1.319 .512 1.7 - 7-882-305 -

6-1/4" 2.0866 2.7559 .3937 1.772 .748 3.3 4.4 7-882-306 7-882-4068" 2.1260 3.3465 .9843 .3543 .3937 .4724 2.244 .906 5.3 7.1 7-882-308 7-882-40810" 2.4803 4.1339 1.1024 .4331

.4724.5512 2.736 1.102 9.0 12 7-882-310 7-882-410

12-1/2" 2.8740 4.9213 1.2598 .5000 .7087 3.268 1.358 13 17 7-882-312 7-882-41215-3/4" 3.6220 5.7087 1.4173 .5906

.5512.8661 3.898 1.417 16 - 7-882-316 -

20" 3.9370 7.0866 1.5748.6299

1.0236 4.705 1.969 33 - 7-882-320 -25" 4.3307 8.8583 1.9685 1.1024 5.866 2.598 57 - 7-882-325 -

Soft Solid Jaws for 3 and 4-Jaw Steel Scroll Chucks• Sold in sets

ChuckDiameter A B C D E F G H I J

BoltSizeM

Wtper Pc

lbs

3 and4-JawPart

Number5" 2.520 0.866 1.520

.31290.5910 1-1/4

.5001.000

.1260.283

5/16-18 .66 7-884-3056-1/4" 3.071 1.000 1.634 0.8386 1-1/2 1.339

3/8-161.01 7-884-306

8" 3.543 1.063 1.713 0.9488 1-3/4 1.575 1.43 7-884-30810" 4.173 1.280 2.028

.5000

1.0827 2-3/16

.750

1.7721/2-13

2.54 7-884-31012-1/2" 4.724 1.457 2.165 1.2087 2-1/2 2.087

.2480

3.53 7-884-31215-3/4" 5.512 1.654 2.539 1.3443

3 2.480 .4065/8-11 4.85 7-884-316

20" 5.512 1.654 2.9331.3543 3/4-10

5.29 7-884-32025" 6.299 2.047 3.288 9.26 7-884-325

Soft Top Jaws for 3 and 4-Jaw Steel Scroll Chucks• American Standard Tongue and Groove Jaws• Sold by piece

SPARE PARTS

PRECISION

CHU

CKSBISON


ChuckDiameter

Scroll** Pinion** Pinion Sleeve Half Ring

D H Wtlbs

PartNumber D H Wt

lbsPart

Number ID PartNumber D Part

Number4" 2.74 0.49 0.34 7-887-304 0.98 1.4 0.12 7-886-304 - - - 7-888-904*5" 3.7 0.63 0.84 7-887-505 0.98 1.44 0.13 7-886-505 0.98 7-888-505 1.52 7-888-705

6-1/4" 4.88 0.83 2.03 7-887-506 1.1 1.57 0.18 7-886-506 1.1 7-888-506 1.72 7-888-7068" 6.24 0.94 3.62 7-887-508 1.2 1.99 0.37 7-886-508 1.2 7-888-508 1.85 7-888-70810" 7.82 1.1 4.54 7-887-510 1.4 2.36 0.44 7-886-510 1.4 7-888-510 1.94 7-888-710

12-1/2" 10.1 1.2 10.2 7-887-512 1.5 2.85 0.71 7-886-512 1.5 7-888-512 2.17 7-888-71215-3/4" 12.9 1.3 22.7 7-887-516 1.7 3.66 1.3 7-886-516 1.7 7-888-516 2.42 7-888-71620" 16.4 1.2 36.4 7-887-520 2 4.45 2.1 7-886-520 2 7-888-520 2.76 7-888-72025" 21.3 1.6 66 7-887-525 2 5.24 2.5 7-886-525 2 7-888-525 2.95 7-888-725

Spare Parts for 2, 3, 4 and 6-Jaw Chucks with ForgedSteel Body

** For steel body chucks only with 5" thru 25"* Pinion screw

Extended and Standard Length Wrenches*

ChuckDiameter

SquareSize

Extended Length Standard Length

L PartNumber L Part

Number4" .3543 - - 3.15 7-889-0045" .3543 - - 3.15 7-889-005

6-1/4" .4331 8-1/2 7-889-008L 3.94 7-889-0068" .4331 8-1/2 7-889-008L 3.94 7-889-00810" .5512 8-1/2 7-889-008L 4.72 7-889-010

12-1/2" .5512 8-1/2 7-889-012L 4.72 7-889-01215-3/4" .6693 - - 5.51 7-889-01620" .7480 - - 5.51 7-889-02025" .7480 - - 5.51 7-889-02532" .7480 - - 5.51 7-889-032

Heavy Duty Jaws for Universal and Precision Scroll Chucks• Jaw gripping surfaces serration 1/8"• Sold in sets• Jaws are recommended for heavy

machining applications

* Wrenches are spring loaded for the operator’ssafetyRemoval of the spring is not recommendedand may void chuck warranty

ChuckDiameter

PartNumber

10" 7-883-310012-1/2" 7-883-312015-3/4" 7-883-316020" 7-883-3200

25" and 32" 7-883-3250

D = OD DiameterH = HeightL = OAL

UNIVERSAL SCROLL CHUCKS

BISON


2, 3, and 4-Jaw Universal Self-Centering Scroll Chucks• These chucks can be used on all types of lathes,

and on different kinds of milling, drilling, andCNC attachments

• Chucks come with either American Standardtwo-piece tongue and groove jaws, or two setsof hard solid OD and ID jaws

• Plain Back and Direct Mount• Semi-steel body• Chuck body is made of high quality cast iron

All guideways and bearing surfaces areprecisely machined

• Scroll plate is drop forged of fine alloy steel,and carefully case hardenedThread flanks are ground on both sides

• The jaw’s teeth and guideways arehardened and fully ground on both sides

• Pinions are hardened and ground

1. Chuck Body2. Back Cover3. Scroll Plate 7-887-3...4. Pinion 7-886-3...5. Pinion Screw 7-888-9...6. Hard Master Jaws 7-885-3...7. Hard Top Jaws 7-883-3...8. Grease Nipple9. Chuck Mounting Bolts 7-897-10. Back Cover Mounting Bolts11. Chuck Wrench 7-889-0...12 and 13. Jaw Mounting Bolts 7-897-5...

1. Chuck Body2. Back Cover3. Scroll Plate 7-887-3...4. Pinion 7-886-3...5. Pinion Screw 7-888-9...6. Hard Solid ID Jaws 7-881-7. Hard Solid OD Jaws 7-880-8. Grease Nipple,9. Chuck Mounting Bolts 7-897-10. Back Cover Mounting Bolts11. Chuck Wrench 7-889-0..

32" Diameter ChuckSee page 84

Chucks with Two-PieceReversible Jaws

Chucks with Two Sets ofOD and ID Hard Solid Jaws

Spare Parts: See page 72Adapter Plates: See pages 61-67


UN

IVERSAL

CHU

CKS

BISON




Chucks are provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• 2 Eye bolts with 16” - 32” chucks• 3 Pinion design

ChuckDiameter

HoleDiameter

Max HoleEnlargement

RPMmax

Wtlbs

PartNumber

5" 1.2598 1.2598 3200 11 7-800-05006-1/4" 1.6535 1.8110 3000 22 7-800-06008" 2.1653 2.5591 2500 39 7-800-080010" 2.9921 3.4646 2000 55 7-800-1000

12-1/2" 4.0551 4.3307 1500 110 7-800-120015-3/4" 5.3543 5.5906 1000 187 7-800-160020" 7.4803 8.2283 700 320 7-800-200025" 9.9213 11.9291 500 551 7-800-250032" 10.5120 12.7953 300 886 7-800-3200

ChuckDiameter

HoleDiameter

Max HoleEnlargement

RPMmax

Wtlbs

PartNumber

3-1/4" .6299 .6299 4000 3.3 7-810-03004" .7874 .7874 3500 6.17 7-810-04005" 1.2598 1.2598 3200 11 7-810-0500

6-1/4" 1.6535 1.8110 3000 22 7-810-06008" 2.1653 2.5591 2500 39 7-810-080010" 2.9921 3.4646 2000 55 7-810-1000

12-1/2" 4.0551 4.3307 1500 110 7-810-120015-3/4" 5.3543 5.5906 1000 187 7-810-160020" 7.4803 8.2283 700 320 7-810-200025" 9.9213 11.9291 500 551 7-810-2500

Chucks are provided with:• 1 Set of hard solid ID jaws• 1 Set of hard solid OD jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• 2 Eye bolts with 16" - 25" chucks• 3 Pinion design

2, 3, and 4-Jaw Universal Self-Centering Scroll Chucks• Semi-steel body• Plain back chucks• Adapter plates required

Front View Back View

Type 3204

Type 3205


BISON


2-Jaw Scroll Chucks with Soft Top Reversible JawsChucks are provided with:• 1 Set of hard master jaws• 1 Set of soft top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Semi-steel body• 2 Eye bolts with 16” chuck• 2 Pinion design

ChuckDiameter

HoleDiameter

Max HoleEnlargement

RPM*max

Wtlbs

PartNumber

6-1/4" 1.6535 1.8110 3000 22 7-830-06008" 2.1654 2.5591 2500 39 7-830-080010" 2.9921 3.4646 2000 55 7-830-1000

12-1/2" 4.0551 4.3307 1500 110 7-830-120015-3/4" 5.3543 5.5906 1000 187 7-830-1600

2, 3 and 4-Jaw Universal Self-Centering Scroll Chucks• Semi-steel body• Plain back chucks• Adapter plates required


4-Jaw Scroll Chucks with Two-Piece Hard Reversible JawsChuck

DiameterHole

DiameterMax Hole

EnlargementRPMmax

Wtlbs

PartNumber

5" 1.2598 1.2598 3200 11 7-840-05006-1/4" 1.6535 1.8110 3000 22 7-840-06008" 2.1654 2.5591 2500 39 7-840-080010" 2.9921 3.4646 2000 55 7-840-1000

12-1/2" 4.0551 4.3307 1500 110 7-840-120015-3/4" 5.3543 5.5906 1000 187 7-840-160020" 7.480 8.2283 700 320 7-840-200025" 9.921 11.9291 500 551 7-840-2500

ChuckDiameter

HoleDiameter

Max HoleEnlargement

RPMmax

Wtlbs

PartNumber

5” 1.2598 1.2598 3200 11 7-845-05006-1/4” 1.6535 1.8110 3000 22 7-845-06008” 2.1654 2.5591 2500 39 7-845-080010” 2.9921 3.4646 2000 55 7-845-1000

12-1/2” 4.0551 4.3307 1500 110 7-845-120015-3/4” 5.3543 5.5906 1000 187 7-845-160020” 7.480 8.2283 700 320 7-845-200025” 9.921 11.9291 500 551 7-845-2500

Chucks are provided with:• 1 Set of hard master jaws• 1 Set of hard top reversible jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Semi-steel body• 2 Eye bolts with 16” -25” chucks• 2 Pinion design

Chucks are provided with:• 1 Set of hard solid ID jaws• 1 Set of hard solid OD jaws• 1 Chuck wrench• 1 Set of mounting bolts• 2 Hex keys• Semi-steel body• 2 Eye bolts with 16”-25” chucks• 2 Pinion design

*RPM max is rated for round workpiece ONLY

Type 3604

Type 3105

Type 3605


UN

IVERSAL

CHU

CKS

BISON


ChuckDiameter 4" 5" 6-1/4" 8" 10" 12-1/2" 15-3/4" 20" 25" 32"

SolidJaws

d1 .118-1.30 .118-1.97 .118-2.52 .157-3.54 .197-4.65 .394-5.16 .39-7.09 .79-9.25 1.18-13.10 -d2 1.26-2.44 1.54-3.27 1.97-4.21 2.36-5.71 3.03-7.40 3.54-8.46 3.35-9.92 4.72-13.19 6.30-18.31 -d3 2.44-3.27 3.15-4.92 3.86-6.30 5.12-7.87 6.30-9.84 7.48-12.40 8.27-14.96 9.65-16.74 12.80-24.80 -d4 .98-2.20 1.34-2.91 1.65-3.94 2.05-5.31 2.44-6.85 3.07-7.87 4.05-10.71 5.51-14.06 7.09-19.17 -d5 2.20-3.43 2.83-4.53 3.70-6.06 4.72-7.95 5.71-10.08 6.77-11.77 9.05-15.75 10.87-19.09 13.58-24.80 -

TwoPieceJaws

d1 - .118-1.97 .118-2.52 .157-3.54 .197-4.65 .394-5.16 .394-7.09 .787-9.25 1.18-13.19 5.9-18.95d2 - 2.05-3.78 2.44-4.76 2.83-6.14 3.39-7.76 4.06-8.90 5.00-11.57 4.33-15.75 4.72-22.44 9.92-28.99d3 - 3.74-4.92 4.53-6.30 5.24-7.87 6.30-9.84 7.48-12.40 9.06-15.75 7.48-19.69 7.87-24.80 12.91-31.97d4 - 1.34-2.99 1.65-3.81 1.97-5.12 2.28-6.50 2.56-7.17 2.84-8.98 4.72-16.14 5.51-23.23 9.45-28.50d5 - 2.95-4.65 3.46-5.75 4.13-7.48 4.92-9.25 5.71-10.43 6.50-12.95 7.87-19.09 8.27-26.18 12.44-31.50

ChuckDiameter

DF E d C H h h1

Adapter Mounting BoltsThread

M L No. ofBolts

PartNumber

3-1/4" 2.6378 2.2047 0.6299 0.1181 1.732 - 0.512 M6 x 1

0.983

7-897-1034" 3.2677 2.7559 0.7874 0.1181 1.969 - 0.669

M8 x 1.25 7-897-1055" 4.252 3.7402 1.2598 0.1575 2.205 1.575 0.787

6-1/4" 5.5118 4.9213 1.6535 0.1575 2.539 1.693 1.26M10 x 1.5

6

7-897-1088" 6.9291 6.2992 2.1654 0.1575 2.953 1.772 1.14210" 8.8189 7.874 2.9921 0.1969 3.347 2.087 1.339 M12 x 1.75

1.187-897-110

12-1/2" 11.2598 10.2362 4.0551 0.1969 3.701 2.244 1.693

M16 x 2

7-897-11215-3/4" 14.2519 12.9921 5.3543 0.1969 4.134 2.639 2.165

1.57 7-897-12520" 18.0314 16.5354 7.4803 0.1969 4.724 3.15 2.36225" 23.0709 21.4567 9.9212 0.2756 5.315 3.425 2.75632" see page 73 7-897-132

Principal Dimensions for 2-Jaw Chucks - Back Mounting

Principal Dimensions for 3 and 4-Jaw Chucks - Back Mounting

Clamping Ranges for 3 and 4-Jaw Chucks withTwo-Piece Jaws and Solid Jaws

ChuckDiameter

DF E d C H

Top Jaws Adapter Mounting Bolts

h Width ThreadM

No. ofBolts

PartNumber

6-1/4" 5.5118 4.9213 1.6535 .1575 2.756 1.697 1.575M10 x 1.5

6

7-897-1088" 6.9291 6.2992 2.1654 .1575 3.150 1.776 1.57510" 8.8189 7.8740 2.9921 .1969 3.543 2.071 1.850 M12 x 1.75 7-897-110

12-1/2" 11.2598 10.2362 4.0551 .1969 3.937 2.240 2.047M16 x 2

7-897-11215-3/4" 14.2519 12.9921 5.3543 .1969 4.331 2.598 2.047 7-897-125


BISON


3-Jaw, Type A1 and A2, Direct Mount Chuckswith Two Piece Hard Reversible Jaws• Semi-steel body• Type A1 spindle has a 2 bolt hole pattern, inside and outside the taper. Either an A1 or A2 chuck will fit• Type A2 spindle has a 1 bolt pattern outside the taper, only an A2 chuck will fit

ChuckDiameter

D

TaperSize

HoleDiameter

d

Max HoleEnlarge-

ment

RPMmax

Wtlbs

B(A2)

B1(A1) G C/C1 H h

Chuck Mounting Bolts ChuckPart

NumberThread L No. ofBolts

Bolt PartNumber

6-1/4'' A1-5 1.6535 1.8110 3000 22 - 2.4374 3.2505 0.563 3.2087 1.693 7/16-14 2-3/43

7-897-521 7-801-0615

8''A1-5 1.6535

2.5591 2500 42- 2.4374 3.2505 0.563

3.5827 1.7727/16-14

3-1/87-897-522 7-801-0815

A1-6 2.1653 - 3.2500 4.188 0.625 1/2-13 7-897-533 7-801-0816

10''A2-5 2.9921 2.9921

2000 714.1260 - 3.2505 0.563

4.0748 2.0877/16-14 4-1/8

6

7-897-524 7-801-1015A1-6 2.1635

3.4646- 3.2500 4.188 0.625 1/2-13 3-1/2 7-897-534 7-801-1016

A1-8 2.9921 - 4.3750 5.5007 0.688 5/8-11 3-1/2 7-897-545 7-801-1018

12-1/2''A2-6 4.0551 4.0551

1500 1215.2520 - 4.188 0.63

4.6338 2.2441/2-13 4-3/4 7-897-537 7-801-1216

A1-8 3.1496 4.3307 - 4.3750 5.5007 0.688 5/8-11 4-3/16 7-897-548 7-801-1218

15-3/4''A2-6 4.0551 4.0551

1000 2035.2520 - 4.188 0.63

5.0591 2.6391/2-13 5 7-897-552 7-801-1616

A2-8 5.3543 5.3543 6.7480 - 5.5007 0.709 5/8-11 5 7-897-552 7-801-1618A1-11 5.1181 5.5906 - 6.5000 7.7507 0.75 3/4-10 4-1/4 7-897-564 7-801-1619

20'' A2-11 7.5905 7.5905 700 353 9.2520 - 7.7507 0.787 5.748 3.091 3/4-10 5-7/8 7-897-567 7-801-2029

25''A2-11 7.4803 7.5905

500 6289.2520 - 7.7507 0.75

6.496 3.4253/4-10 7-3/32 7-897-569 7-801-2511

A2-15 9.9213 11.000 13.000 - 11.251 0.813 7/8-9 6 7-897-574 7-801-251532'' A2-20 12.598 12.598 300 847 18.25 - 16.252 0.8661 7.0866 3.425 1-8 6-1/8 7-897-584 7-801-3220

Type A

Type A1 MountBolt Hole Pattern

LType 3215

Type A2 MountBolt Hole Pattern


UN

IVERSAL

CHU

CKS

BISON


TaperSize Diameter No. of

StudsCamlock Studs Metric Set Screw Camlock Studs English

Thread Part Number Part Number Thread Part NumberD1-3 9/16"

3 M10 x 17-899-103

7-899-3057/16 - 20

7-899-403D1-4 5/8" 7-899-104 7-899-404D1-5 3/4"

6

M12 x 1 7-899-105 1/2 - 20 7-899-405D1-6 7/8" M16 x 1.5 7-899-106

7-899-310

5/8 - 18 7-899-406D1-8 1" M20 x 1.5 7-899-108 3/4 - 16 7-899-408D1-11 1-3/16" M22 x 1.5 7-899-111 7/8 - 14 7-899-411D1-15 1-3/8" M24 x 1.5 7-899-115 - -

3-Jaw, Camlock Type D1, Direct Mount Chucks with Solid Jaws• Semi-steel body

ChuckDiameter

D

TaperSize

HoleDiameter

d

Max HoleEnlarge-

ment

RPMmax

Wtlbs B G C H h

Camlock Studs ChuckPart

NumberDiameter Thread No. ofStuds

6-1/4'' D1-4 1.6535 1.8110 3000 20 3.2520 2.5005 .5118 3.2087 1.693 5/8M10 x 1 3

7-809-0634

8''

D1-3 2.0275 2.0275

2500 42

2.7795 2.1250 .5118

3.5827 1.772

9/16 7-809-0833D1-4 2.1653 2.397 3.2520 2.5005 .5118 5/8 7-809-0834D1-5 2.1653

2.55914.1260 3.2505 .5629 3/4 M12 x 1

6

7-809-0835D1-6 2.1653 5.2520 4.1880 .5629 7/8 M16 x 1.5 7-809-0836

10''D1-5 2.9921 2.9921

2000 714.1260 3.2505 .5629

4.0748 2.0873/4 M12 x 1 7-809-1035

D1-6 2.99213.4646

5.2520 4.1880 .6299 7/8 M16 x 1.5 7-809-1036D1-8 2.9921 6.7480 5.5007 .7087 1 M20 x 1.5 7-809-1038

12-1/2''D1-6 4.0551 4.0551

1500 1125.2520 4.1880 .6299 4.6338

2.2447/8 M16 x 1.5 7-809-1236

D1-8 4.05514.3307

6.7480 5.5007 .7087 4.6338 1 M20 x 1.5 7-809-1238D1-11 4.0551 9.2520 7.7507 .7874 5.5118 1-3/16 M22 x 1.5 7-809-1239

Type D

NOTE: Always use metricthreaded studswith BISON chucks

Type 3244

Camlock Studs with Inch and Metric Threads and SetScrews for Type D1 Direct Mount Chucks• Sold by piece


BISON


ChuckDiameter

D

TaperSize

HoleDiameter

d

Max HoleEnlarge-

ment

RPMmax

Wtlbs B G C H h

Camlock StudsChuck

Part NumberDiameter Thread No. ofStuds

5" D1-4 1.2598 1.2598 3200 11 3.2520 2.5005 .5118 2.7559 1.575 5/8

M10 x 1 3

7-803-0534

6-1/4"D1-3

1.6535 1.9685 3000 202.7795 2.1250

.5118 3.2087 1.6939/16 7-803-0633

D1-4 3.2520 2.5005 5/8 7-803-0634

8"

D1-3 2.0275 2.0275

2500 42

2.7795 2.1250.5118

3.5827 1.772

9/16 7-803-0833D1-4

2.16532.3622 3.2520 2.5005 5/8 7-803-0834

D1-52.5591

4.1260 3.2505.5629

3/4 M12 x 1

6

7-803-0835D1-6 5.2520 4.1880 7/8 M16 x 1.5 7-803-0836

10"D1-5

2.99212.9921

2000 714.1260 3.2505 .5629

4.0748 2.0873/4 M12 x 1 7-803-1035

D1-63.4646

5.2520 4.1880 .6299 7/8 M16 x 1.5 7-803-1036D1-8 6.7480 5.5007 .7087 1 M20 x 1.5 7-803-1038

12-1/2"D1-6

4.05514.0551

1500 1125.2520 4.1880 .6299 4.6338

2.2447/8 M16 x 1.5 7-803-1236

D1-84.3307

6.7480 5.5007 .7087 4.6338 1 M20 x 1.5 7-803-1238D1-11 9.2520 7.7507 .7874 5.5118 1-3/16 M22 x 1.5 7-803-1239

15-3/4"D1-6 4.0551 4.0551

1000 2235.2520 4.1880 .6299

5.0591 2.6397/8 M16 x 1.5 7-803-1636

D1-8 5.3543 5.3543 6.7480 5.5007 .7087 1 M20 x 1.5 7-803-1638D1-11 5.3543 5.5906 9.2520 7.7507 .7874 1-3/16 M22 x 1.5 7-803-1639

20"D1-8 5.3543 5.3543

700 3316.7480 5.5007 .7087

5.7480 3.1501 M20 x 1.5 7-803-2038

D1-11 7.5984 7.5984 9.2520 7.7507 .7874 1-3/16M22 x 1.5

7-803-203925" D1-11 7.5984 11.9291 500 604 9.2520 7.7507 .7874 6.4960 3.425 1-3/16 7-803-2539

3-Jaw, Camlock Type D1, Direct Mount Chuckswith Two-Piece Jaws• Semi-steel body

Type 3245Type D


UN

IVERSAL

CHU

CKS

BISON


3-Jaw, Type L, Direct Mount Chucks with Two-Piece Jaws• Semi-steel body

ChuckDiameter

D

TaperSize

HoleDiameter

d

Max HoleEnlarge-

ment

RPMmax.

Wtlbs

ThreadT G J C H h Part

Number

6-1/4"L00

1.6535 1.8110 3000 233-3/4" - 6 2-3/4 .5512 2.1260 4.0551

1.6937-804-0641

L0 4-1/2" - 6 3-1/4 .5906 2.5197 4.4488 7-804-0642

8"L00

2.16542.50

2500 423-3/4" - 6 2-3/4 .5512 2.1260 4.3701

1.7727-804-0841

L02.5591

4-1/2" - 6 3-1/4 .5906 2.5197 4.7638 7-804-0842L1 6" - 6 4-1/8 .6299 2.9921 5.2362 7-804-0843

10"L0

2.99212.9921

2000 644-1/2" - 6 3-1/4 .5906 2.5197 5.0394

2.0877-804-1042

L13.4646

6" - 6 4-1/8 .6299 2.9921 5.5118 7-804-1043L2 7-3/4" - 5 5-1/4 .8661 3.5039 6.0236 7-804-1044

12-1/2"L0

4.05514.0551

1500 1344-1/2" - 6 3-1/4 .5906 2.5197 5.3937

2.2447-804-1242

L1 6" - 6 4-1/8 .6299 2.9921 5.8661 7-804-1243L2 4.3307 7-3/4" - 5 5-1/4 .8661 3.5039 6.3780 7-804-1244

15-3/4"L1

4.0551 4.0551 1000 2516" - 6 4-1/8 .6299 2.9921 6.1811

2.6397-804-1643

L2 7-3/4" - 5 5-1/4 .8661 3.5039 6.6929 7-804-1644

Type L Type 3255


BISON


ChuckDiameter

D

ThreadT

HoleDiameter

d

RPMmax*

Wtlbs G k H h h1 Part

Number

4"1" - 10

.7874 3500 8.81.0150

1/23.543

- .6697-805-0451

1-1/8" - 12W** 1.250 3.543 7-805-04551-1/2" - 8 1.5150 3.543 7-805-0452

5"1" - 10

1.2598 3200 121.0150

1/23.740

1.575 -7-805-0551

1-1/2" - 8 1.5150 3.740 7-805-0552

6-1/4"1-1/2" - 8

1.5748 3000 231.5150 1/2 4.134

1.693 -7-805-0652

2-1/4" - 8 2.2600 5/8 4.331 7-805-0653

8"1-1/2" - 8

2.1653 2500 451.5150 1/2 4.528

1.772 -7-805-0852

2-1/4" - 8 2.2600 5/8 4.724 7-805-08532-3/8" - 6 2.3850 3/4 4.922 7-805-0854

10" 2-1/4" - 8 2.9921 2000 75 2.2600 5/8 5.512 2.087 - 7-805-105312-1/2" 2-3/8" - 6 4.0551 1500 121 2.3850 3/4 5.906 2.244 - 7-805-1254

3-Jaw, Threaded, Direct Mount Chucks• Semi-steel body

Diameter: 4" Only

Diameters: 5" thru 12.5"

NOTES: Prior to ordering a threaded mount chuck, please check the spindle nosediameter "G" and dimension "k". Depending on the lathe manufacturer,these dimensions may vary slightly from those specified in the above chart

Metric threads are often confused with traditional threads;please use thread pitch gage to confirm exact pitch prior to ordering

Threaded

See page 16 for spindle dimensions

Type 3285/3284

** 1-1/8 - 12W is a Whitworth thread


UN

IVERSAL

CHU

CKS

BISON


Installation Instructions for Mounting Back Platesonto SpindlesAll Bison semi-machined and fully machined backplates will have the mounting dimensions for theirrespective spindles fully machined. The fully machined backplates are designed for scroll plain back chucks,which are .030", etc. They can be used on other styles/models, but the existing bolt hole patterns haveto be reviewed for mounting interference.

In all cases, the backplates will have to be finished/machined on the mounting projection, both on the OD(approximately .030" oversize) and the length.

1. With an indicator check the spindle to see if there is any radial or axial runout.Refer to the chuck manual for spindle nose accuracy.

2. Wipe the protective factory grease off the backplate, then mount it to the respectivespindle making sure that all fastening components are torqued appropriately.

3. When initially installing the bolts, leave finish tightening to a second pass,and make sure to alternate to the opposite bolt to evenly distribute pressureacross the spindle’s taper. Using the dial indicator, recheck the radial and axialbackplate runout. If there are major differences, loosen the backplate and refit it.

4. Once the backplate is in place, a technique used to further ensure a closetolerance to the chuck would be to blue the front face of the backplate andtake a skim cut. In most cases this is not required.

5. Next, measure the OD and depth of the counterbore on the backside of thechuck; these will become your working dimensions for final sizing. Dependingon the size of the chuck, the OD should be .001" to .005" less than the ODdimension and the length can be approximately .015" to .030" shorter. Thisminus tolerance will eliminate the possibility of the projection pressing againstthe back of the chuck, which can impact the scroll and create unnecessaryfriction with the jaw teeth. This could make it difficult for the wrench to turnthe pinions and in turn the jaws. Machine the backplate until a snug fit has beenachieved; this may require removing the backplate.

Note: The purpose of this backplate projection to the chuck counterbore isto relieve the stress on the mounting bolts, and is a critical part in maintainingchuck concentricity.

6. The semi-machined backplates recommended for independent chucks do not havemounting holes, and will have to be machined to the chucks bolt hole pattern.Dimensions are available in the BISON catalog, online at www.toolmex.com,or by calling a customer service representative at 800-992-4766 or 508-653-8897

7. Bolt hole patterns may require removal of the backplate for machining. Oncemachined, follow the procedures from steps 2 and 3 before mounting.

8. Re-indicate the chuck for basic run out on the OD and Face.9. Take a round piece of ground stock and enclose the jaws. Then, indicate the

part for runout at the jaws, ½ way across its length, and at the end. This will giveyou an idea of the parameters that will have to be accounted for part production.

CAST IRON ADAPTERS

BISON


ChuckDiameter A = F D D1 D3 D2 E (H7) Dx (k5) S* Sx** C

3-1/4" 2.6378 3.1496 3.1693 0.0252 2.2835 2.2047 2.20470.0787 0.0984 0.1181

4" 3.2677 3.3970 3.9567 0.3307 2.8346 2.7559 2.75595" 4.2520 4.9213 4.9409 0.3307 3.8189 3.7402 3.7402

0.1181 0.1378 0.15756-1/4" 5.5118 6.2992 6.3189 0.4134 5.0000 4.9213 4.92138" 6.9291 7.8740 7.9134 0.5118 6.3780 6.2992 6.299210" 8.8189 9.8425 9.8819 0.6693 7.9528 7.8740 7.8740

0.1575 0.1772 0.196912-1/2" 11.2598 12.4016 12.4409 0.6693 10.3150 10.2362 10.236215-3/4" 14.2520 15.7480 15.8268 0.6693 13.1102 12.9221 12.922120" 18.0315 19.6850 19.7638 0.6693 16.6535 16.5354 16.535425" 23.0709 24.8031 24.9213 0.6693 21.5748 21.4567 21.4567 0.2362 0.2559 0.275632" 14.5000 - - - 17.7170 17.7170 - - - 0.7874

Rough Adapters for Scroll Chucks with Threaded Spindles

ChuckDiameter D d D1 K L Wt

lbsPart

Number3" 5.20 .71 3.46 .98 2.20 4.4 7-870-1054" 5.20 .71 3.46 .98 2.20 4.4 7-870-1055" 5.20 .71 3.46 .98 2.20 4.4 7-870-105

6-1/4" 6.70 .98 3.46 .98 2.20 12 7-870-1068" 8.30 .98 4.02 1.18 2.83 22 7-870-10810" 10.24 1.57 4.53 1.26 3.54 34 7-870-110

12-1/2" 12.30 1.97 6.77 1.26 4.02 66 7-870-11215-3/4" 16.34 2.76 9.06 2.17 4.92 154 7-870-11625" 25.20 4.72 11.81 3.35 7.09 496 7-870-125

Principal Mounting Dimensions for Bison Adapters

Type 8205

• After selecting a suitable backplate for the lathe, mount it onto the spindle nose of the lathe• Proper mounting is very important in order to secure concentricity between the lathe’s spindle and the chuck• The back of the lathe chuck has a counterbore diameter, E, finished in H7 class, with depth, C• Prior to maching the adapter, accurately measure the chuck’s counterbore diameter, E, and depth, C• A good press fit, H6/k5, is most desirable• To ensure satisfactory concentricity, it is important that this procedure is done accurately

* S = length of the boss of the supplied backplate** Sx = length of the boss after machining

See full back platemachining instructions onpage 61

CAST IRON ADAPTERS

UN

IVERSAL

CHU

CKS

BISON


Semi-Finished Threaded Adapters for Threaded Spindles

Fully Machined Threaded Adaptersfor Bison Plain Back Self-Centering Chucks

ChuckDiameter A B C D h E Wt

lbsThread

MPart

Number

4" 1.5352.165 1.01500

4.095 .709 .5000 81-10 7-871-041

2.677 1.51421 1-1/2-8 7-871-042

5" 1.5352.165 1.01500

5.079 .709 .5000 101-10 7-871-051

2.677 1.51421 1-1/2-8 7-871-052

6-1/4"1.535

3.1891.51421

6.535 .787.5000

121-1/2-8 7-871-062

1.791 2.26000 .6260 2-1/4-8 7-871-063

8"1.535

3.5831.51421

8.110 .866.5000 12 1-1/2-8 7-871-082

1.791 2.26000 .6260 13 2-1/4-8 7-871-083

10"1.791

4.1732.26000

10.079 .984.6260 22 2-1/4-8 7-871-103

2.047 2.38500 .7480 25 2-3/8-6 7-871-104

12-1/2" 2.047 4.3312.38500

12.638 1.102 .7480 332-3/8-6 7-871-124

2.76000 2-3/4-8 7-871-125*

ChuckDiameter A Thread

D C B B1 E Wtlbs

PartNumber

3-1/4" 3.15 3/4" - 16 - .6299 .6299 .1969 4 7-922-035

4" 3.941" - 10 1.97

1.50 .551.5000

57-922-043

1-1/8" - 12W 1.97 .5630 7-922-0451-1/2" - 8 2.36 .5000 7-922-046

5" 4.92M39 x 4 3.00 2.00 .75

.6260 117-922-051

2-3/16" - 10 3.11 1.61 .689 7-922-0536-1/4" 6.3 2-3/16" - 10 3.11 1.61 .768 .6260 13 7-922-063

Type 8206

Type 8204

NOTE: Part number series 7-922-adapters require somemachining on the counterboreprojection, see page 69 formore information

Mounting Instructions: see page 61

CAST IRON ADAPTERS

BISON


ChuckDiameter

TaperSize

StudDiameter

No.of

Studs

HoleDiameter

CD G

Fully Machined Adapters*** Semi-Machined Adapters**Diameter

A B B1 Wtlbs

PartNumber

DiameterA

Wtlbs

FlangeThickness

PartNumber

4" D1-4 5/8

3

2.40 3.25 2.50 5.97 1.02 .87 3.65 7-878-044 - - - -

5"D1-3 9/16 2.02 2.78 2.13

4.94 1.02.57

5.37-878-053 - - - -

D1-4 5/8 2.40 3.25 2.50 .87 7-878-054 - - - -

6-1/4"

D1-3 9/16 2.02 2.78 2.13

6.32

1.06 .71

9.5

7-878-0636.38 9.3

1.02 7-878-0630D1-4 5/8 2.40 3.25 2.50 1.06 .71 7-878-064 1.14 7-878-0640D1-5 3/4

63.13 4.13 3.25 1.18 1.0 7-878-065 1.14 7-878-0650

D1-6 7/8 4.06 5.25 4.19 1.44 1.32 7-878-066 - - - -D1-8 1 4.06 6.75 5.50 1.69 1.53 7-878-068* - - - -

8"

D1-3 9/163

2.02 2.78 2.13

7.89

1.06 .71

15.4

7-878-083

8.00 27

- -D1-4 5/8 2.40 3.25 2.50 1.06 .71 7-878-084 1.73 7-878-0840D1-5 3/4

6

3.13 4.13 3.25 1.18 .71 7-878-085 1.97 7-878-0850D1-6 7/8 4.06 5.25 4.19 1.44 1.26 7-878-086 1.38 7-878-0860

10"D1-5 3/4 3.13 4.13 3.25

9.861.18 .87 24.3 7-878-105

9.96 35 1.937-878-1050

D1-6 7/8 4.06 5.25 4.19 1.44 .87 24.3 7-878-106 7-878-1060D1-8 1 5.35 6.75 5.50 1.54 1.36 39.7 7-878-108 7-878-1080

12-1/2"D1-6 7/8 4.06 5.25 4.19

12.421.56 .94

39.77-878-126

12.52 492.76 7-878-1260

D1-8 1 5.35 6.75 5.50 1.65 .94 7-878-128 2.17 7-878-1280D1-11 1-3/16 7.59 9.25 7.75 1.85 1.36 7-878-129 2.17 7-878-1290

15-3/4"D1-6 7/8 4.06 5.25 4.19

15.771.44

1.10 797-878-166

15.94 932.17 7-878-1660

D1-8 1 5.35 6.75 5.50 1.54 7-878-168 2.76 7-878-1680D1-11 1-3/16 7.59 9.25 7.75 1.85 7-878-169 1.96 7-878-1690

20"D1-8 1 5.35 6.75 5.50

19.701.54

1.14 1327-878-208

19.88 1591.81 7-878-2080

D1-11 1-3/16 7.59 9.25 7.75 1.85 7-878-209 2.83 7-878-209025" D1-11 1-3/16 7.59 9.25 7.75 24.82 1.85 1.14 232 7-878-259 25.00 232 2.83 7-878-259025" D1-15 1-3/8 11.00 13.0 11.25 24.82 1.97 1.14 232 7-878-265 - - - -

Type 8240 Type 8242

Semi-Machined and Fully Machined Type D1 Adapters• The number of camlock studs needed varies depending on the spindle size, so please refer to the table below• Plain back chucks require adapter plates which may require machining• Designed for direct mounting on camlock spindle nose

Fully Machined D1 Adapters Semi-Machined D1 Adapters

** See mounting instructions on page 61***The projection on the backplate must be sized to fit each chuck

CAST IRON ADAPTERS

UN

IVERSAL

CHU

CKS

BISON


Semi-Machined and Fully Machined Type A1/A2 Adapters• For plain back chucks• Designed for direct mounting on A1 and A2 spindle nose• May be used for both scroll and independent chucks• See mounting instructions on page 61

ChuckDiameter

TaperNo. A B C D E Wt

lbs

Semi-Machined**Part

Number

Wtlbs

Fully MachinedPart

Number

5"A-6

5.001.02 2.13 5.25 4.19

6.57-873-056

5.37-873-0560

A-8 1.81 3.15 6.75 5.50 7-873-058 -6-1/4" A-5 6.40 1.00 3.13 4.125 3.25 6.5 7-873-065 - -

8"A-5

7.991.5

1.54.125 3.25 19 7-873-085 18 7-873-0850

A-6 1.3 5.25 4.19 15.5 7-873-086

- -10"

A-69.96

1.33.17

5.25 4.19 38 7-873-106A-8 1.97 6.75 5.50 33 7-873-108

12-1/2"A-6

12.521.3

4.065.25 4.19 45 7-873-126

A-8 2.17 6.75 5.50 62 7-873-128

15-3/4"A-8

15.941.7

5.366.75 5.50 85 7-873-168

A-11 2.95 9.25 7.75 141 7-873-169 141 7-873-169H20" A-11 19.88 1.77 7.59 9.25 7.75 133 7-873-209

25"A-11

25.001.77 7.59 9.25 7.75 158 7-873-259

A-15 2.205 7.60 13.00 11.25 218 7-873-2595*** 218A-20 2.205 16.0 18.25 16.25 156 7-873-2598*** 156

Type 8212 Type 8210

Semi-MachinedType 8212

Fully MachinedType 8210

** Semi-Machined backplates should be thefirst alternative for independent chucks*** Supplied with spindle mounting bolts

NOTES: Adapters require some machining on the counterbore projection,see page 61 for more information

The projection on the backplate must be sized to fit each chuck.

CAST IRON ADAPTERS

BISON


ChuckDiameter

TaperNo.

ThreadDiameter A B C B1 Wt

lbsPart

Number5" L00 3-3/4"-6 4.92 2.13 2.2 0.71 10 7-879-051

6-1/4"L00 3-3/4"-6

6.322.13 2.2

0.71 137-879-061

L0 4-1/2"-6 2.52 2.6 7-879-062

8"L00 3-3/4"-6

7.912.13 2.2

0.71 227-879-081

L0 4-1/2"-6 2.52 2.6 7-879-082L1 6"-6 2.99 3.35 7-879-083

10"

L00 3-3/4"-6

9.88

2.13 2.20

0.83 33

7-879-101L0 4-1/2"-6 2.52 2.60 7-879-102L1 6"-6 2.99 3.35 7-879-103L2 7-3/4"-5 3.50 4.29 7-879-104

12-1/2"L0 4-1/2"-6

12.442.52 2.60

1.1039 7-879-122

L1 6"-6 2.99 3.3557

7-879-123L2 7-3/4"-5 3.50 4.29 7-879-124

15-3/4"

L0 4-1/2"-6

15.83

2.52 2.60

1.10 95

7-879-162L1 6"-6 2.99 3.35 7-879-163L2 7-3/4"-5 3.50 4.29 7-879-164L3 10-3/8"-4 4.02 5.43 7-879-165

20"L2 7-3/4"-5

19.763.50 4.29

1.14 1597-879-204

L3 10-3/8"-4 4.02 5.43 7-879-205

25"L2 7-3/4"-5

24.823.78 4.29

1.38 3977-879-254

L3 10-3/8"-4 4.02 5.43 7-879-255

Fully Machined Type L Adapters• For plain back, self-centering chucks• For direct mounting on type L spindle nose• See mounting instructions on page 61

NOTE: Adapters require some machiningon the counterbore projection,see page 61 for more information

Type 8250

CAST IRON ADAPTERS

UN

IVERSAL

CHU

CKS

BISON


ChuckDiameter

TaperSize

StudDiameter

No.of

StudsG B

HoleDiameter

d

Fully Machined Adapter Semi-Machined Adapter

DiameterA K Wt

lbsPart

NumberDiameter

AWtlbs

FlangeThickness

L

PartNumber

5" C-2 - 0 2.480 1.654 1.59 4.94 - 5.3 7-921-052 - - - -

6-1/4"C-4 .768 3 3.25 2.50 2.40

6.32 .83 9.57-921-064 - - - -

C-5 .768 4 4.125 3.25 3.13 7-921-065 6.38 9.3 1.14 7-921-0650

8"C-4 .768 3 3.25 2.50 2.40

7.89 .83 157-921-084 - - - -

C-5 .768 4 4.125 3.25 3.13 7-921-0858.00 27

1.97 7-921-0850C-6 .846 4 5.25 4.19 4.06 7-921-086 1.38 7-921-0860

10"C-5 .768 4 4.125 3.25 3.13

9.86 .83 247-921-105

9.96 35 1.937-921-1050

C-6 .846 4 5.25 4.19 4.06 7-921-106 7-921-1060

12-1/2"C-6 .846 4 5.25 4.19 4.06

12.42 1.30 407-921-126

12.52 492.76 7-921-1260

C-8 1.063 4 6.75 5.50 5.35 7-921-128 2.17 7-921-1280C-11 1.339 6 9.25 7.75 7.59 7-921-129 2.17 7-921-1290

15-3/4"C-8 1.063 4 6.75 5.50 5.35

15.77 1.30 807-921-168

15.94 932.76 7-921-1680

C-11 1.339 6 9.25 7.75 7.59 7-921-169 1.96 7-921-1690

20"C-8 1.063 4 6.75 5.50 5.35

19.70 1.34 1327-921-208

- -- -

C-11 1.339 6 9.25 7.75 7.59 7-921-209 - -25" C-11 1.339 6 9.25 7.75 7.59 24.82 1.65 231 7-921-259 25.00 232 2.83 7-921-2590

Type C, DIN 55027 Spindle Adapters

TaperSize

StudDiameter

inch

StudDiameter

mm

Threadmm

No.of

Studs

PartNumber

C-4 .7677 19.5 M10 - 39 3 7-921-904C-5 .7677 19.5 M10 - 43

47-921-905

C-6 .8465 21.5 M12 - 50 7-921-906C-8 1.063 27.0 M16 - 60 7-921-908C-11 1.339 34.0 M20 - 75 6 7-921-911

Type 8232Type 8230

DIN Studs

UNIVERSAL SPARE PARTS

BISON


Hard Master Jaws for 2, 3 and 4-Jaw Self-CenteringScroll Chucks• American Standard Tongue and Groove Jaws• Sold in sets

ChuckDiameter

2-Jaw 3-Jaw 4-JawPart Number

5" - 7-885-305 7-885-4056-1/4" 7-885-206 7-885-306 7-885-4068" 7-885-208 7-885-308 7-885-40810" 7-885-210 7-885-310 7-885-410

12-1/2" 7-885-212 7-885-312 7-885-41215-3/4" 7-885-216 7-885-316 7-885-41620" - 7-885-320 7-885-42025" - 7-885-325 7-885-42532" - 7-885-325 -

ChuckDiameter K H G F J L D E B OAL

A C S ThreadM

Wt*lbs

5" 5/8 57/64 .4996 5/16 .1575 .4724 .3150 .3150 .7874 2.1259 1.102

.126

5/16-18 .316-1/4"" 3/4 1-1/8 .4996 5/16 .1575 .5511 .3150 .3150 .7874 2.5590 1.142 3/8-16 .40

8" 7/8 1-3/8 .4996 5/16 .1575 .5511 .3543 .3937 .9843 3.1102 1.299 3/8-16 .6810" 1-1/16 1-9/16 .7496 1/2 .1575 .6299 .4331 .4724 1.1024 3.6220 1.417 1/2-13 1.06

12-1/2" 1-1/4 1-7/8 .7496 1/2 .1575 .6299 .5000 .4724 1.2598 4.3307 1.575 1/2-13 1.7015-3/4" 1-1/2 2-1/4 .7496 1/2 .2835 .8661 .5906 .5512 1.4173 5.1181 1.929 5/8-11 2.4320" 1-1/2 2-1/4 .7496 1/2 .2835 .1.2598 .6299 .5512 1.5748 6.5351 2.126 3/4-10 4.8125" 1-1/2 2-1/4 .7496 1/2 .2835 1.2598 .6299 .5512 1.9685 8.2677 2.146 3/4-10 7.3632" 1-1/2 2-1/4 .7496 1/2 .2835 1.2598 .6299 .5512 1.9685 8.2677 2.146 3/4-10 7.36

5" to 10" Diameters

20" Diameter 25" to 32" Diameters

12-1/2" and 15-3/4" Diameters

* Approximate weight of one jaw

All solid jaws and master jawsare manufactured to Bison’srigid specifications


UN

IVERSAL

CHU

CKS

BISON


ChuckDia

PartNumber

15-3/4" 7-883-316HD20" 7-883-320HD

25" and 32" 7-883-325HD

ChuckDiameter

3-Jaw 4-Jaw

Part Number5" 7-883-305 7-883-405

6-1/4" 7-883-306 7-883-4068" 7-883-308 7-883-40810" 7-883-310 7-883-410

12-1/2" 7-883-312 7-883-41215-3/4" 7-883-316 7-883-41620" 7-883-320 7-883-42025" 7-883-325 7-883-42532" 7-883-325 7-883-425


A O P Wt per Pclbs

5" 5/8 57/64 .4996 .35 .59 .3129

.157

.1260 .315 1.516 .866 2.205 .57 1.38 .376-1/4" 3/4 1-1/8 .4996 .43 .71 .3129 .1260 .335 1.634 .984 2.638 .71 1.63 .568" 7/8 1-3/8 .4996 .43 .71 .3129 .1260 .374 1.713 1.063 3.347 .85 2.01 .7910" 1-1/16 1-9/16 .7496 .55 .78 .5004 .1260 .472 2.023 1.280 3.740 .96 2.32 1.32

12-1/2" 1-1/4 1-7/8 .7496 .55 .78 .5004 .1260 .512 2.165 1.457 4.331 1.04 2.68 2.0115-3/4" 1-1/2 2-1/4 .7496 .71 1.0 .5004 .2480 .532 2.539 1.654 5.000 1.06 3.01 2.9820" 1-1/2 2-1/4 .7496 .87 1.3 .5004 .2480 .689 2.933 1.654 5.000 1.97 3.46 3.4225" 1-1/2 2-1/4 .7496 .87 1.3 .5004 .2480 .827 3.228 2.047 5.000 2.01 3.50 5.3432" 1-1/2 2-1/4 .7496 .87 1.3 .5004 .2480 .827 3.228 2.047 5.000 2.01 3.50 5.34

Hard Top Jaws for 3 and 4-Jaw Scroll Chucks• American Standard Tongue and Groove Jaws• Sold in sets• Standard jaws are designed for finishing and medium duty machining• Heavy duty jaws are designed for heavy duty machining

StandardJaws

Heavy Duty Jaws for Universal and Precision Scroll Chucks• Jaw gripping surfaces serration 1/8"• Sold in sets• Jaws are recommended for heavy machining applications


BISON


O.D. Hard Solid Jaws for 3 and 4-Jaw Scroll Chucks• Sold in sets

ChuckDiameter C L B F E N P O Wt per Pc

lbs3-Jaw 4-Jaw

Part Number3" 1.1024 1.2598 .4331 .2362 .2362 .2362 0.827 .374 .10 7-880-303 -4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .19 7-880-304 -5" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.313 .512 .40 7-880-305 7-880-405

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 .80 7-880-306 7-880-4068" 2.1260 3.3459 .9843 .3543 .3937 .4724 2.244 .906 1.07 7-880-308 7-880-40810" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 1.73 7-880-310 7-880-410

12-1/2" 2.9528 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 2.90 7-880-312 7-880-41215-3/4" 3.6220 5.7087 1.4173 .5906 .5512 .8661 3.898 1.417 5.20 7-880-316 7-880-41620" 3.9370 7.0866 1.5748 .6299 .5512 1.0236 4.705 1.969 7.33 7-880-320 7-880-42025" 4.3307 8.8583 1.9685 .6299 .5512 1.1024 5.866 2.598 13.00 7-880-325 7-880-425


lbs3-Jaw 4-Jaw

Part Number3" 1.1024 1.2598 .4331 .2362 .2362 .2362 0.827 .374 .10 7-881-303 -4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .19 7-881-304 -5" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.313 .512 .40 7-881-305 7-881-405

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 .80 7-881-306 7-881-4068" 2.1260 3.3459 .9843 .3543 .3937 .4724 2.244 .906 1.07 7-881-308 7-881-40810" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 1.73 7-881-310 7-881-410

12-1/2" 2.9528 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 2.90 7-881-312 7-881-41215-3/4" 3.6220 5.7087 1.4173 .5906 .5512 .8661 3.898 1.417 5.20 7-881-316 7-881-41620" 3.9370 7.0866 1.5748 .6299 .5512 1.0236 4.705 1.969 7.33 7-881-320 7-881-42025" 4.3307 8.8583 1.9685 .6299 .5512 1.1024 5.866 2.598 13.00 7-881-325 7-881-425

I.D. Hard Solid Jaws for 3 and 4-Jaw Scroll Chucks• Sold in sets


UN

IVERSAL

CHU

CKS

BISON



lbs3-Jaw 4-Jaw

Part Number3" 1.1024 1.2598 .4331 .2362 .2362 .2362 0.827 .374 .13 7-882-303 -4" 1.2598 1.6535 .5906 .2362 .2362 .2756 1.063 .433 .29 7-882-304 -5" 1.5748 2.0079 .7874 .3150 .3150 .3150 1.313 .512 .57 7-882-305 -

6-1/4" 2.0866 2.7559 .7874 .3150 .3150 .3937 1.772 .748 1.10 7-882-306 7-882-4068" 2.1260 3.3459 .9843 .3543 .3937 .4724 2.244 .906 1.77 7-882-308 7-882-40810" 2.4803 4.1339 1.1024 .4331 .4724 .5512 2.736 1.102 3.00 7-882-310 7-882-410

12-1/2" 2.9528 4.9213 1.2598 .5000 .4724 .7087 3.268 1.358 4.20 7-882-312 7-882-41215-3/4" 3.6220 5.7087 1.4173 .5906 .5512 .8661 3.898 1.417 5.33 7-882-316 7-882-41620" 3.9370 7.0866 1.5748 .6299 .5512 1.0236 4.705 1.969 11.00 7-882-320 -25" 4.3307 8.8583 1.9685 .6299 .5512 1.1024 5.866 2.598 19.00 7-882-325 -

Soft Solid Jaws for 3 and 4-Jaw Scroll Chucks• Sold in sets

ChuckDiameter A

3 and4-Jaw

B

2, 3, and4-Jaw

BC D E F G H I J

Bolt SizeM

3-Jaw

Wt perPclbs

2-Jaw 3 and4-Jaw

Part Number5" 2.520 0.866 - 1.520 .3129 0.5910 1-1/4 .500 1.000 .1260 .283 5/16-18 .66 - 7-884-305

6-1/4" 3.071 1.000 1.575 1.634 .3129 0.8386 1-1/2 .500 1.339 .1260 .283 3/8-16 1.01 7-884-206 7-884-3068" 3.543 1.063 1.575 1.713 .3129 0.9488 1-3/4 .500 1.575 .1260 .283 3/8-16 1.43 7-884-208 7-884-30810" 4.173 1.280 1.850 2.028 .5000 1.0827 2-1/8 .750 1.772 .1260 .283 1/2-13 2.54 7-884-210 7-884-310

12-1/2" 4.724 1.457 2.047 2.165 .5000 1.2087 2-1/2 .750 2.087 .2480 .283 1/2-13 3.53 7-884-212 7-884-31215-3/4" 5.512 1.654 2.047 2.539 .5000 1.3543 3 .750 2.480 .2480 .406 5/8-11 4.85 - 7-884-31620" 5.512 1.654 - 2.933 .5000 1.3543 3 .750 2.480 .2480 .406 3/4-10 5.29 - 7-884-32025" 6.299 2.047 - 3.288 .5000 1.3543 3 .750 2.480 .2480 .406 3/4-10 9.26 - 7-884-32532" 6.299 2.047 - 3.288 .5000 1.3543 3 .750 2.480 .2480 .406 3/4-10 9.26 - 7-884-325

Soft Top Jaws for 2, 3, and 4-Jaw Chucks• Sold by piece• American Standard Tongue and Groove Jaws

Jaw mounting boltscan be found on

page 72


BISON


ChuckDiameter

SquareSize

Extended Length Standard Length Heavy Duty

L PartNumber L Part

NumberPart

Number3" .2344 3.15 7-889-003L 2.36 7-889-003 7-889-003C4" .3543 - - 3.15 7-889-005 7-889-005C5" .3543 - - 3.15 7-889-005 7-889-005C

6-1/4" .4331 8-1/2 7-889-008L 3.94 7-889-008 7-889-008C8" .4331 8-1/2 7-889-008L 3.94 7-889-008 7-889-008C10" .5512 8-1/2 7-889-012L 4.72 7-889-012 7-889-012C

12-1/2" .5512 8-1/2 7-889-012L 4.72 7-889-012 7-889-012C15-3/4" .6693 - - 5.51 7-889-016 7-889-016C20" .7480 - - 5.51 7-889-020 -25" .7480 - - 5.51 7-889-025 -32" .7480 - - 5.51 7-889-032 -

Mounting Bolts for Hardand Soft Top Jaws

L

Spare Parts for 3-Jaw Chucks with Semi-Steel Body

ChuckDiameter

Scroll** Pinion** Pinion Screw

OD H Wtlbs

PartNumber OD OAL Wt

lbsPart

NumberPart

Number3" 2.16 .41 .16 7-887-303 .75 1.02 .04 7-886-303 7-888-9044" 2.74 .49 .34 7-887-304 .98 1.40 .12 7-886-304 7-888-9045" 3.70 .53 .66 7-887-305 .98 1.63 .14 7-886-305 7-888-906

6-1/4" 4.88 .71 1.85 7-887-306 1.1 1.87 .20 7-886-306 7-888-9068" 6.26 .79 2.65 7-887-308 1.2 2.30 .42 7-886-308 7-888-91010" 7.84 .87 4.28 7-887-310 1.4 2.72 .51 7-886-310 7-888-910

12-1/2" 10.1 .98 9.50 7-887-312 1.5 3.60 .77 7-886-312 7-888-91015-3/4" 12.9 1.10 18.8 7-887-316 1.7 4.41 1.48 7-886-316 7-888-92020" 16.4 1.18 36 7-887-320 2.0 5.30 2.09 7-886-320 7-888-92025" 21.3 1.57 66 7-887-325 2.0 5.87 2.51 7-886-325 7-888-92032" 27.4 1.77 148 7-887-332 2.0 8.07 4.41 7-886-332 7-888-920

** For semi-steel chucks only

Extended and StandardLength Wrenches

Eye Bolts

ChuckDiameter L D

15-3/4" and 20" .9843 1.181125" and 28" 1.2205 1.3386

32", 36" and 40" 1.4961 1.574849" 1.7717 1.9685


Screw No. 1 Screw No. 2

L PartNumber L Part

Number5" 5/16"-18 .79 7-897-503 1.00 7-897-504

6-1/4" 3/8"-16 .79 7-897-510 1.18 7-898-1118" 3/8"-16 .79 7-897-511 1.18 7-897-51210" 1/2"-13 1.00

7-897-5301.57 7-897-531

12-1/2" 1/2"-13 1.00 1.57 7-897-53115-3/4" 5/8"-11 1.18 7-897-540 1.77 7-897-54120" 3/4"-10 1.57

7-897-5582.95 7-897-561

25" 3/4"-10 1.57 3.15 7-897-56232" 3/4"-10 1.57 3.15 7-897-562

LARGE THRU-HOLE

LARG

EA

ND

EXTRALA

RGE

SELF-CENTERIN

GCH

UCKS

BISON


3-Jaw Self-Centering Plain Back Scroll Chuckswith Large Thru-Hole3-Jaw Universal Scroll Chucks comewith a 10-1/2" thru-hole, which CANBE ENLARGED TO 12-1/2" MAXIMUMBY USER• Two-piece reversible tongue and groove jaws• Available in semi-steel or steel body• Jaws, scroll plate, and three pinions are madeof fine alloy steel, then carefully heat treatedand ground

• Balanced scroll

Standard Accessories:• 1 Set of two-piece reversible jaws(hard top jaws and hard top master jaws)

• 1 Wrench• 1 Set of mounting screws

Optional Accessories:• Soft top jaws

ChuckDiameter Material

HardMasterJaws3 Pc Set

HardTopJaws3 Pc Set

Hard TopJaws

Heavy Duty3 Pc Set

Soft TopJaw1 Pc

Scroll1 Pc

Pinion1 Pc

Wrench1 Pc

PinionScrew1 Pc

ChuckMountingBolts1 Pc

Part Number

31-1/2" Steel 7-885-325 7-883-325 7-883-3250 7-884-3257-887-532

7-886-332 7-889-032 7-888-920 7-897-1257-887-332

SpareParts

ChuckDiameter

D

HoleDiameter

dE F H h K R

L M N O P

min-max

31-1/2" 10-1/2" 17.717 14.500 6.26 9.67 12-1/2 .7874 5.91 - 18.98 11.10 - 24.17 17.64 - 30.71 11.89 - 24.96 18.43 - 31.50

See pages 62 - 67 for backplates

please note: dimensions for G, G1, and Tcan be found on pages 67 and 68

ChuckDiameter

HoleDiameter

RPMmax

Wtlbs

ChuckBody

PartNumber

31-1/2” 10-1/2”300 738 semi-steel 7-800-3200450 772 steel 7-820-3200

Type 3205

Type 3305 or 3307

EXTRA LARGE THRU-HOLE

BISON


ChuckDiameter

HardMasterJaws3 Pc Set

HardTopJaws3 Pc Set

SoftTopJaw1 Pc

Scroll1 Pc

Pinion1 Pc

Wrench1 Pc

PinionScrew1 Pc

ChuckMountingBolts1 Pc

Part Number15-3/4" 7-885-116 7-883-316 7-884-316 7-887-216 7-886-216 7-889-016

7-888-920

7-897-11120" 7-885-120 7-883-320 7-884-320 7-887-220 7-886-220 7-889-025 7-897-12526" 7-885-126 7-883-325 7-884-325 7-887-226 7-886-226 7-889-025 7-897-125

31-1/2” 7-885-325 7-883-325 7-884-325 7-887-232 7-886-232 7-889-032 7-897-574

See pages 62 - 67 for back plates

Type 3295

Spare Parts

ChuckDiameter

A

ThruHoleE

Jaw Stroke Wt ofWorkpiece

B F D a M b c Wtlbs

RPMmax

PartNumber

min max withoutSupport

withSupport

15-3/4" 8.66 6.614 11.34 110 3307 4.13 15.000 14.252 4.72 M12x40 5/8"-11

.74996

128 500 7-819-1600

20" 12.60 9.874 14.96 177 5512 4.72 18.957 18.189 4.72 M16x40 3/4"-10 168 350 7-819-2000

26" 15.98 14.80 19.57 265 7716 5.32 24.409 22.835 5.00 M16x40 3/4"-10 258 250 7-819-2600

31-1/2" 16.14 7.402 22.28 441 8820 5.95 18.110 27.953 8.86 7/8-9x6 3/4"-10 468 200 7-819-3200

3-Jaw Self-Centering Plain Back Semi-Steel Scroll Chuckswith Extra Large Thru-Hole, Medium Duty• Two-piece reversible American Standard Tongue and Groove Jaws• Designed for pipe machining or pipe welding cut-off operations• Can be used on lathes, rotary tables and welding devices• Jaws, scroll plate, and three pinions are made of fine alloy steel,then carefully heat treated and ground

• Balanced scroll

Standard Accessories:15-3/4", 20", and 26" diameter chucks• 1 Set of master jaws32" diameter chucks

• 1 Set of master jaws, and1 Set of hard top jaws


Optional Accessories:• Soft top jaws• Hard top jaws• Adapter plates, semi-finished for15-3/4", 20", and 26" diameterchucks only

* Steel body chucks available on special order

FRONT MOUNTING CHUCKS

FRON

TM

OU

NTIN

GCH

UCKS

BISON


3 and 4-Jaw Self-Centering Plain Back Scroll Chucks• Can be mounted directly on 3/6 slot rotarytables or on a base plate when the rotary tablehas 3/6 or 4/8 T-slots

• Base plates are designed for use with all rotarytables and other devices where back mountingchucks cannot be used

ChuckDiameter

D

HoleDiameter

dF E

H7 C H h1 Wtlbs

Mounting ScrewsPart

NumberThreadG

No. ofScrews

ThreadM

3-1/4" .6299 2.6378 2.2047.1181

1.732 .512 3.6 1/4-20 x 1.97

3

M6 7-811-03003.3" .7087 2.8346 2.4409 1.73 .51 4.2 1/4-20 x 1.97 M6 7-811-03304'' .7874 3.2677 2.7559 1.969 .669 5.3 5/16-18 x 2.17 M8 7-811-04005'' 1.2598 4.2520 3.7402

.15752.205 .787 9.3 5/16-18 x 2.17 M8 7-811-0500

6-1/4'' 1.6535 5.5118 4.9213 2.559 1.260 17.0 3/8-16 x 2.76 M10 7-811-06008'' 2.1654 6.9291 6.2992 2.953 1.142 32.0 3/8-16 x 3.15

6M10 7-811-0800

10'' 2.9921 8.8189 7.8740.1969

3.347 1.339 52.0 1/2-13 x 3.54 M12 7-811-100012-1/2'' 4.0551 11.2598 10.2362 3.701 1.693 87.0 5/8-11 x 3.94 M12 7-811-1200

3-Jaw Semi-Steel Body with Solid Jaws

Type 3274

• These chucks can also be mounted to a roughmachined backplate, but will require machiningof bolt hole patterns and projections forfinished assembly


BISON


ChuckDiameter

D

HoleDiameter

dF E

H7 C H h Wtlbs

Mounting Screws Semi-SteelChuck

Forged SteelChuck

ThreadG

No. ofScrews

ThreadM

PartNumber

5'' 1.2598 4.2520 3.7402.1575

2.205 1.575 9.3 5/16-18 x 2.173

M8 7-812-0500 7-813-05006-1/4'' 1.6535 5.5118 4.9213 2.559 1.693 17.0 3/8-16 x 2.76 M10 7-812-0600 7-813-0600

8'' 2.1654 6.9291 6.2992 2.953 1.772 32.0 3/8-16 x 3.15

6

M10 7-812-0800 7-813-080010'' 2.9921 8.8189 7.8740

.19693.347 2.087 52.0 1/2-13 x 3.54 M12 7-812-1000 7-813-1000

12-1/2'' 4.0551 11.2598 10.2362 3.701 2.244 87.0 5/8-11 x 3.94 M12 7-812-1200 7-813-120015-3/4'' 5.3543 14.2519 12.9921 4.134 2.639 163 5/8-11 x 4.53 M16 7-812-1600 7-813-1600

3-Jaw Steel and Semi-Steel Body with 2 Piece Jaws

4-Jaw Semi-Steel Body with 2 Piece Jaws

ChuckDiameter

D

HoleDiameter

dF

EH7

C H hWtlbs

Mounting Screws PartNumberThread G No. of Screws

5'' 1.2598 4.2520 3.7402.1575

2.205 1.575 9.3 5/16-18 x 2.173

7-814-05006-1/4'' 1.6535 5.5118 4.9213 2.559 1.693 17.0 3/8-16 x 2.76 7-814-0600

8'' 2.1654 6.9291 6.2992 2.953 1.772 32.0 3/8-16 x 3.15

6

7-814-080010'' 2.9921 8.8189 7.8740

.19693.347 2.087 52.0 1/2-13 x 3.54 7-814-1000

12-1/2'' 4.0551 11.2598 10.2362 3.701 2.244 87.0 5/8-11 x 3.94 7-814-120015-3/4 5.3543 14.2519 12.9921 .1969 4.134 2.639 163 5/8-11 x 4.53 7-814-1600

Type 3575

Type 3675

3 and 4-Jaw Self-Centering Plain Back Scroll Chucks

Type 3275


FRON

TM

OU

NTIN

GCH

UCKS

BISON


ChuckDiameter

Screws

Thread G No. of Screws Thread M3-1/4" 1/4-20 x 1.97

3

M63.3" 1/4-20 x 1.97 M64'' 5/16-18 x 2.17 M85'' 5/16-18 x 2.17 M8

6-1/4'' 3/8-16 x 2.76 M108'' 3/8-16 x 3.15

6

M1010'' 1/2-13 x 3.54 M12

12-1/2'' 5/8-11 x 3.94 M1215-3/4 5/8-11 x 4.53 M16

Mounting Screws

ChuckDiameter

MasterJaws3 Pc Set

MasterJaws4 Pc Set

OD Jaws3 Pc Set

ID Jaws3 Pc Set

Soft TopJaw1 Pc

Scrollsemi-steel body

1 Pc

Scrollsteel body1 Pc

Pinionsemi-steel body

1 Pc

Pinionsteel body1 Pc

Wrench1 Pc

Part Number3" - - 7-880-303 7-881-303 -

7-887-303-

7-886-303-

7-889-0033.3" - - 7-880-3033 7-881-3033 - - -4" - - 7-880-304 7-881-304 - 7-887-304 - 7-886-304 -

7-889-0055" 7-885-305 7-885-405 7-880-305 7-881-305 7-884-305 7-887-305 7-887-505 7-886-305 7-886-505

6-1/4" 7-885-306 7-885-406 7-880-306 7-881-306 7-884-306 7-887-306 7-887-506 7-886-306 7-886-5067-889-008

8" 7-885-308 7-885-408 7-880-308 7-881-308 7-884-308 7-887-308 7-887-508 7-886-308 7-886-50810" 7-885-310 7-885-410 7-880-310 7-881-310 7-884-310 7-887-310 7-887-510 7-886-310 7-886-510

7-889-01212-1/2" 7-885-312 7-885-412 7-880-312 7-881-312 7-884-312 7-887-312 7-887-512 7-886-312 7-886-51215-3/4" 7-885-316 7-885-416 - - 7-884-316 7-887-316 - 7-886-316 7-866-516 7-889-016

Spare Parts

L


BISON


ChuckDiameter A B h Wt

lbsPlate for Universal Chucks Plate for SET-TRU Chucks

D E F Part Number D E F Part Number6-1/4" 9.84 7.48 1.10 10.3 4.9213 5.5118 3.543 7-630-006 3.386 5.5118 2.36 7-630-606

8" 11.81 9.21 1.26 16.2 6.2992 6.9291 5.118 7-630-008 4.331 6.9291 2.76 7-630-60810" 13.94 11.50 1.26 25.0 7.8740 8.8189 5.787 7-630-010 5.708 8.8188 3.94 7-630-610

12-1/2" 16.77 14.25 1.57 35.5 10.2362 11.2598 6.690 7-630-012 7.087 11.2598 4.72 7-630-61215-3/4" 20.47 17.72 1.89 51.2 12.9921 14.2519 6.693 7-630-016 11.750 6.7500 4.72 7-630-616

ChuckDiameter

Pin Bolts Base Plate

MT PartNumber

PartNumber H Wt

lbsPart

Number5" 2 7-872-932 7-872-905 0.57 3.8 7-872-305

6-1/4"

3 7-872-9337-872-906

0.65 5.5 7-872-3068" 0.77 7.7 7-872-30810"

7-872-9100.81 12.9 7-872-310

12-1/2" 1.00 23.9 7-872-31215-3/4" 4 7-872-934 7-872-916 1.08 40.32 7-872-316

Base Plates for Front and Back Mount Chucks• Designed for use with Bison 2, 3 and 4 jawfront mounting and back mountingself-centering lathe chucks

• Ideal for use on milling and drillingmachines as well as on rotary tableswith 3/6 and 4/8 slots

• Base plates are supplied with fourmounting bolts with T-nuts and oneMT centering sleeve

• Chucks are sold separately

Type 8293For plate dimensions,see page 166

Base Plates for Back Mount ONLY• Designed for use with Bison 2, 3, and 4-jaw self-centering PlainBack lathe chucks Back Mount ONLY with a semi-steel or forgedsteel body as well as for 2, 3, 4, and 6-jaw SET-TRU chucks

• Ideal for use on milling and drilling operations• Base plates are supplied with two mounting bolts withT-nuts, two T-slot keys, and a chuck wrench with sliding T-bar

• Chucks are sold separately

Type 9452Type 9450

COMBINATION CHUCKS

COM

BINATIO

NCH

UCKS

BISON


ChuckDiameter

AB C D

EH J K Thread

Mmin max

5" 4.2520 3.7402 1.2598 0.118 4.72 3.7402 .1575 2.9528 M86-1/4" 5.5118 4.9213 1.6535 0.118 6.30 4.0551 .1693 3.3071 M10

8" 6.9291 6.2992 2.1654 0.15 8 5.0000 .2165 3.7800 M1010" 8.8190 7.8740 2.9921 0.20 10 5.3150 .2362 4.0157 M12

12-1/2" 11.2598 10.2362 4.0551 0.39 12-1/5 6.2402 .2362 4.6063

M1615-3/4" 14.2520 12.9921 5.3543 0.59 15-3/4 7.1650 .2480 4.8400

20" 18.0315 16.5354 7.4803 0.78 20 8.1100 .3150 5.708725" 23.0709 21.4567 9.2130 1.18 25 9.1340 .3937 6.2992

ChuckDiameter

HoleDiameter

Semi-Steel

RPM Wtlbs

PartNumber

5" 1.30 3200 12.8 7-848-05006-1/4" 1.65 3000 23.6 7-848-0600

8" 2.17 2000 41.4 7-848-080010" 2.99 1800 65 7-848-1000

12-1/2" 4.05 1500 120 7-848-120015-3/4" 5.35 1000 194 7-848-1600

20" 7.48 500 330 7-848-200025" 9.21 350 551 7-848-2500

ChuckDiameter

HoleDiameter

Steel

RPM Wtlbs

PartNumber

8" 2.17 2500 43.0 7-849-080010" 2.99 2000 68.3 7-849-1000

12-1/2" 4.05 1700 124 7-849-120020" 7.48 1000 342 7-849-200025" 9.92 750 573 7-849-2500

Type 4605 Type 4805

4-Jaw Combination Lathe Chucks with Semi-Steeland Steel BodyBison Plain Back Combination Chucks:• Combine the advantages of a scroll chuckwith those of an independent chuck

• Each jaw may be adjusted individuallywith an independent operating screw

• After the desired eccentric setting hasbeen made, all jaws can then be openedand closed simultaneously with the useof a scroll and pinion

• The jaws are reversible and may be usedas inside and outside jaws

Standard Accessories:• 1 Set of hard solidreversible jaws


Optional Accessories• Soft solid jaws

COMBINATION CHUCKS

BISON


ChuckDiameter

Hard ReversibleJaws4 Pc Set

Hard MasterJaws4 Pc Set

Soft SolidJaws4 Pc Set

Operating Screw1 Pc

Scroll Plate1 Pc

Pinion1 Pc

Wrench1 Pc

Part Number5" 7-891-105 7-891-205 7-891-305 7-891-405 7-887-305 7-886-305 7-891-0056" 7-891-106 7-891-206 7-891-306 7-891-406 7-887-306 7-886-306 7-891-0068" 7-891-108 7-891-208 7-891-308 7-891-408 7-887-308 7-886-308 7-891-90810" 7-891-110 7-891-210 7-891-310 7-891-410 7-887-310 7-886-310 7-891-910

12-1/2" 7-891-112 7-891-212 7-891-312 7-891-412 7-887-312 7-886-312 7-891-91215-3/4" 7-891-116 7-891-216 7-891-316 7-891-416 7-887-316 7-886-316 7-891-916

20" 7-891-120 7-891-220 7-891-320 7-891-420 7-887-320 7-886-320 7-891-92525" 7-891-125 7-891-225 7-891-325 7-891-425 7-887-325 7-886-325 7-891-925

Spare Parts

DOUBLE JAW GUIDE CHUCKS

DO

UBLEJAW

GUID

ECHUCKS

BISON


ChuckDiameter

AB C D E

Hole F ThreadG

No. ofMountingBolts

B1** H J Wtlbs

RPMmax

3-JawPart

Number6-1/4" 2.93 .26 4.9213 1.65 5.5118 M10

6

3.12 .98 1.70 22 3000 7-816-0600

8" 3.27 .26 6.2992 2.17 6.9291 M10 3.46 1.14 1.77 39 2500 7-816-0800

10" 3.78 .24 7.8740 2.99 8.8189 M12 3.93 1.38 2.09 65 2000 7-816-1000

12-1/2" 4.33 .25 10.2362 4.06 11.2598 M16 4.53 1.63 2.24 110 1500 7-816-1200

ChuckDiameter

ID Jaws3 Pc Set

OD Jaws3 Pc Set

Scroll1 Pc

Pinion1 Pc

Wrench1 Pc

Pinion Screw1 Pc

Part Number6-1/4" 7-885-806 7-883-806 7-887-306 7-886-306 7-889-008 7-888-906

8" 7-885-808 7-883-808 7-887-308 7-886-308 7-889-008 7-888-91010" 7-885-810 7-883-810 7-887-310 7-886-310 7-889-012 7-888-910

12-1/2" 7-885-812 7-883-812 7-887-312 7-886-312 7-889-012 7-888-910

3-Jaw Self-Centering Scroll Chucks with Double Jaw Guides• These precision lathe chucks are highlyrigid with double jaw guides

• Can be used on all types of lathes, anddifferent kinds of milling, drilling, andCNC attachments

• Chucks are provided with two sets ofhard solid OD and ID jaws

• Body is made of high quality cast iron.All guideways and bearing surfaces areprecisely machined

• Scroll Plate is drop forged of fine alloysteel, then carefully case hardenedThread flanks are ground on both sides

• Jaw’s teeth and guides are hardenedand fully ground on both sides

• 3 Pinions are hardened and ground

Standard Accessories:• 2 Sets of hard solid jaws

(inside and outside)• 1 Self-ejecting wrench• Mounting bolts• 1 Allen key

Optional Accessories:• Soft solid jaws

** Two piece jaw chucks

Type 3202

Spare Parts

INDEPENDENT CHUCKS

BISON


4-Jaw Independent Lathe Chucks• Steel and semi-steel body• Medium duty and heavy duty 4-jawindependent chucks are designed togrip round or odd shaped work

• Medium duty chucks have a semi-steelbody and hard solid reversible jaws

• Bison’s 36" diameter chuck hastwo-piece hard reversible jaws

• Heavy duty chucks have a steel bodyand two-piece hard reversible jaws

• Hard top and hard master jaws aremade of high quality alloy steel, thenhardened and ground

• Solid jaws are made of high qualitycarbon steel, then hardened

• 4-Jaw semi-steel body lathe chuckscome with hard solid reversible jaws

Chucks with diameters rangingfrom 10" to 49" have T-slots

Chucks with Solid Jaws Chucks with Two-Piece Reversible Jaws

1. Chuck Body2. Operating Screw, 7-890-6...3. Thrust Bearing, 7-890-7...4. Set Screw, 7-899-3...5. Hard Solid Jaws, 7-890-1...6. Chuck Mounting Bolts, 7-897-...7. Chuck Wrench, 7-890-9...8. T-slot Screw

1. Chuck Body3. Operating Screw, 7-890-6...4. Thrust Bearing, 7-890-7...5. Set Screw, 7-899-3...6. Hard Master Jaws, 7-890-3...7. Hard Reversible Jaws, 7-890-2...8 and 9. Jaw Mounting Bolts10. Chuck Mounting Bolts, 7-897-...11. Chuck Wrench, 7-890-9...12. T-slot Screw

Standard Accessoriesfor 3-1/2" thru 32" Diameter

Chucks• 1 Set of hard solid reversible jaws• 1 Wrench• 1 Set of clamping bolts

Standard Accessoriesfor 36" Diameter Chucks

• Two-piece reversible jaws(hard top jaws and hard master jaws)

• 1 Wrench• 1 Set of clamping bolts

Optional Accessories• Hard top jaws• Hard master jaws• Soft top jaws

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter A B C D E F G H

No. ofT-slotsB

No. ofSlotsE

10" 1.969 .551 .925 - - - .394 .945

4

-12-1/2" 2.657 .709 1.260 - - - .492 1.181 -15-3/4" 3.543 .709 1.260 - - - .492 1.181 -

20" 4.134 .886 1.476 2.362 .906 1.181 .630 1.378

8

25" 4.528 .886 1.476 3.937 .906 1.181 .630 1.37831-1/2" 5.315 .886 1.476 4.331 1.063 1.969 .630 1.378

36" 8.661 1.102 1.811 3.937 1.102 3.839.787 1.96939-3/8" 9.843 1.102 1.811 3.937 1.102 4.724

49" 12.598 1.102 1.811 5.118 1.102 5.906

ChuckDiameter

D

d1min

d2max

ChuckThru Hole

d33-1/2" 0.118 3.346 0.984

5" 0.315 4.9213 1.02366-1/4" 0.315 6.2992 1.6535

8" 0.394 7.874 1.77210" 0.394 9.843 2.362

12-1/2" 0.59 12.402 2.95315-3/4" 0.787 15.748 3.74

20" 1.772 19.685 4.72425" 1.969 24.803 6.102

31-1/2" 1.969 31.496 7.67736" 4.724 36.024 7.48

39-3/8" 6.693 39.37 7.4849" 6.693 49.213 7.48

Clamping Ranges

See pages 91 - 94for adapter plates

Chuck GreasePart Number 7-799-025

See pages 95 - 97for spare parts

T-slot Dimensions for all 4-JawIndependent Lathe Chucks

INDEPENDENT CHUCKS

BISON


ChuckDiameter

D

HoleDiameter

dd1* E F C H h1 h

Chuck Mounting Bolts Steel Body with Two-Piece Jaws

ThreadM L

QtyperSet

PartNumber

Wtlbs

LoadCapacitylbs**

RPMmax***

PartNumber

8" 1.9685 1.9685 4.3307 3.2520 .1969 3.1496 .7874 1.8268 7/16 - 14 2-3/4 4 7-898-235 35 1700 2500 7-855-080010" 2.5591 2.9528 5.9055 4.1260 .2756 3.3465 1.5866 2.3780 1/2 - 13 3-1/8 4 7-898-335 59 2800 2000 7-855-1000

12-1/2" 3.1496 3.7402 6.8898 5.2520 .2756 3.7402 1.5856 2.3976 5/8 - 11 3-1/2 47-898-438

95 4290 1500 7-855-120015-3/4" 3.9370 4.7244 7.8740 6.7480 .3937 4.1339 1.9606 2.8465 5/8 - 11 3-1/2 4 150 8600 1100 7-855-1600

20" 4.9213 6.1024 10.6299 9.2520 .4724 4.7244 1.9606 3.551 3/4 - 10 4 4 7-898-544 250 12900 700 7-855-200025" 6.2992 6.8898 10.6299 9.2520 .4724 5.5118 2.3543 3.8504 3/4 - 10 4-3/4 4 7-898-550 390 18600 550 7-855-250032" 7.8740 7.8740 14.960613.0000 .4724 6.2992 2.7874 3.6929 7/8 - 9 5-7/8 4 7-898-610 750 24300 450 7-855-320036" 7.4803 10.5 14.566912.9921 .7090 6.6929 - 4.0472 1 - 8 8 8

7-898-765856 27170 200 7-855-3600

40" 7.4803 10.5 14.566912.9921 .7090 6.6929 - 4.0472 1 - 8 8 8 1367 32900 200 7-855-400049" 7.4803 10.5 21.653519.6850 .7090 7.4803 - 4.0472 1 - 8 8 8 2138 37600 150 7-855-4900

4-Jaw Steel Body Plain Back Chucks with Two-Piece Jaws• All chucks with diameters of 10" through 49" have T-slots

L Type 4303

All plain back chucksrequire back platesthat need machining

* d1 is the maximum allowed through hole enlargement** The maximum load capacity per one chuck is rated for plain back,

type A1/A2 and type D1 chucks***The maximum RPM was estimated for round and centered workpieces ONLY,

machined in plain back and direct mount chucks

The maximum load capacity and maximum RPM have been calculatedper the following conditions:

• Workpiece is supported by a live center• Workpiece is gripped in two chucks

NOTE: Bison does not recommend any chuck alterations

See page 93 for backplatemounting recommendations

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter

D

HoleDiameter

dd1* E F C H h1 h

Chuck Mounting Bolts Semi-Steel Body

ThreadM

LQtyperSet

PartNumber

Wtlbs

LoadCapacitylbs**

RPMmax***

Solid JawsPart

Number

2-PieceJaws PartNumber

3-1/2" .9843 .9843 2.4409 2.8346 .1969 1.5748 .6693 - 1/4-20 1-1/4 47-898-002

3.4 33 4000 7-850-0300 -4" .9843 .9843 3.1252 2.1260 .0984 1.5748 .0669 - 1/4-20 1-1/4 4 5.3 33 4000 7-850-0400 -5" 1.0236 1.3780 2.7500 2.1260 .0984 1.6929 .7874 - 5/16-18 1-3/4 4 7-898-017 8.0 330 3500 7-850-0500 -

6-1/4" 1.6535 1.8504 3.2500 2.7500 .0984 1.6929 .7874 - 3/8-16 1-3/4 4 7-898-117 9.0 550 3200 7-850-0600 -8" 1.9685 1.9685 4.3307 3.2520 .1969 3.1496 1.5866 1.8268 7/16-14 2-3/4 4 7-898-235 32 1320 1800 7-850-0800 -10" 2.5591 2.9528 5.9055 4.1260 .2756 3.3465 1.5866 2.3780 1/2-13 3-1/8 4 7-898-335 55 2200 1500 7-850-1000 -

12-1/2" 3.1496 3.7402 6.8898 5.2520 .2756 3.7402 1.9606 2.3976 5/8-11 3-1/2 4 7-898-438 88 3300 1200 7-850-1200 -15-3/4" 3.9370 4.7244 7.8740 6.7480 .3937 4.1339 1.9606 2.8465 5/8-11 3-1/2 4 7-898-438 139 6600 800 7-850-1600 -

20" 4.9213 6.1024 10.6299 9.2520 .4724 4.7244 2.3453 3.551 3/4-10 4 4 7-898-544 231 9900 500 7-850-2000 -25" 6.2992 6.8898 10.6299 9.2520 .4724 5.5118 2.3543 3.8504 3/4-10 4-3/4 4 7-898-550 364 14300 400 7-850-250032" 7.8740 7.8740 14.960613.0000 .4724 6.2992 2.7874 3.6929 7/8-9 5-7/8 4

7-898-610700 18700 300 7-850-3200 -

32"/T 10.4725 10.472514.960613.0000 .4724 6.2992 2.7874 3.6929 7/8-9 5-7/8 4 672 18700 300 7-850-3300 -36" 7.4803 10.5 14.566912.9921 .7090 6.6929 - 4.0472 1-8 8 8 7-898-765 800 20900 150 7-850-3600 7-850-3622

4-Jaw Semi-Steel Body Plain Back Chuckswith Solid and Two-Piece Jaws• All chucks with diameters of 10" through 49" have T-slots• Chucks with 3", 4", 5", and 6" diameters are made of steel

L Type 4304

* d1 is the maximum allowed through hole enlargement** The maximum load capacity per one chuck is rated for plain back, type A1/A2 and type D1 chucks***The maximum RPM was estimated for round and centered workpieces ONLY,

machined in plain back and direct mount chucksThe maximum load capacity and maximum RPM have been calculated per the following conditions:



All plain back chucksrequire back plates thatneed machining

See page 93 for backplatemounting recommendations

INDEPENDENT CHUCKS

BISON


4-Jaw Steel Body, Type A1/A2 Direct Mount withTwo-Piece Jaws• Type A1 spindle has a 2 bolt hole pattern, inside and outside the taperEither an A1 or A2 chuck will fit

• Type A2 spindle has a 1 bolt pattern, outside the taperOnly an A2 chuck will fit

ChuckDiameter

D

TaperSize

HoleDiameter

dd1* B

(A-2) G C H h1 h

Spindle Mounting Bolts Steel Chucks

Thread L Qty PartNumber

Wtlbs

LoadCapacitylbs**

RPMmax***

PartNumber

8'' A2-6 1 .969 1.9685 5.2500 4.1878 .6693 3.1496 .7874 1.8268 1/2 - 13 3-1/8 4 7-897-533 41 1700 2500 7-856-081610'' A2-6 2 .559 2.9528 5.2500 4.1878 .6693 3.3465 1.5866 2.3780 1/2 - 13 3-1/8 4 7-897-533 60 2800 2000 7-856-1016

12-1/2''A2-6

3 .150 3.74025.2500 4.1878 .6693

3.7402 1.5856 2.39761/2 - 13 3-1/2 8 7-897-534

94 4290 15007-856-1216

A2-8 6.7500 5.50055 .7480 5/8 - 11 3-1/4 4 7-897-546 7-856-1218

15-3/4''A2-6

3 .9373.9370 5.2500 4.1878 .6693

4.1339 1.9606 2.84651/2 - 13

48 7-897-535

153 8600 11007-856-1616

A2-84.7244

6.7500 5.50055 .7480 5/8 - 11 4 7-897-547 7-856-1618A2-11 9.2520 7.75055 .8268 3/4 - 10 4 7-897-563 7-856-1619

20''A2-8

4 .921 6.10246.7500 5.50055 .7480

4.7244 1.9606 3.5515/8 - 11

4-1/28 7-897-550

269 12900 7007-856-2018

A2-11 9.2520 7.75055 .8288 3/4 - 10 8 7-897-564 7-856-2019A2-15 13.0000 11.2505 .8661 7/8 - 9 4 7-897-572 7-856-2020

25''A2-11

6.299 6.88989.2520 7.75055 .8268

5.5118 2.3543 3.85043/4 - 10

5-5/168 7-897-566

389 18600 5507-856-2519

A2-15 13.0000 11.2505 .86617/8 - 9

47-897-573

7-856-2520A2-15 10.473 13.0000 11.2505 .8661 4 7-856-2522

32''

A2-11 6.299 7.0866 9.2520 7.75055 .8268

6.2992 2.7874 3.6929

3/4 - 10 5-7/8 6 7-897-567

719 24300 450

7-856-3219A2-15 7.87 11.0 13.0000 7.75055 .8268 7/8 - 9 6-1/8 8 7-897-575 7-856-3220A2-20 10.50 16.0 18.2500 16.251 .8661

1 - 8 6-1/8 4 7-897-5857-856-3229

A2-20 12.50 16.0 18.2500 16.251 .8661 7-856-3225A2-20 14.50 16.0 18.2500 16.251 .8661 7-856-3223

40" A2-15 7.50 11.0 13.0000 11.2505 .8661 6.6929 - 4.0472 7/8 - 9 7-3/32 8 7-897-587 900 32900 200 7-856-4015

LA Type Type 4313





INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter

D

TaperSize

HoleDiameter

dd1*

B(A-2)

G C H h1 h

Spindle Mounting Bolts Semi-Steel Chucks

Thread L QtyPart

NumberWtlbs

LoadCapacitylbs**

RPMmax***

PartNumber

8''A2-5

1.969 1.96854.1250 3.2503 .6299

3.1496 .7874 1.82687/16 - 14 3-1/8

47-897-522

38 1320 18007-851-0815

A2-6 5.2500 4.1878 .6693 1/2 - 13 3-1/8 7-897-533 7-851-0816

10''A2-5

2 .559 2.95284.1250 3.2503 .6299

3.3465 1.5866 2.37807/16 - 14 3-1/8

87-897-522

56 2200 15007-851-1025

A2-6 5.2500 4.1878 .6693 1/2 - 13 3-1/8 7-897-533 7-851-1016A2-8 6.7500 5.50055 .7480 5/8 - 11 3-3/8 7-897-544 7-851-1018

12-1/2''A2-5

3.1503.1496 4.1250 3.2503 .6299

3.7402 1.5856 2.39767/16 - 14 3-1/2

47-897-523

88 3300 12007-851-1215

A2-6 3.7402 5.2500 4.1878 .6693 1/2 - 13 3-1/2 7-897-534 7-851-1226A2-8 3.7402 6.7500 5.50055 .7480 5/8 - 11 3-1/4 7-897-546 7-851-1218

15-3/4''A2-6

3 .9373.9370 5.2500 4.1878 .6693

4.1339 1.9606 2.84651/2 - 13 4

87-897-535

143 6600 8007-851-1626

A2-8 4.7244 6.7500 5.50055 .7480 5/8 - 11 4 7-897-547 7-851-1628A2-11 4.7244 9.2520 7.75055 .8268 3/4 - 10 4 7-897-563 7-851-1619

20'' A2-11 4 .921 6.1024 9.2520 7.75055 .8288 4.7244 1.9606 3.551 3/4 - 10 4-1/2 8 7-897-564 251 9900 500 7-851-201925'' A2-11 6.299 6.8898 9.2520 7.75055 .8268 5.5118 2.3543 3.8504 3/4 - 10 5-5/16 8 7-897-566 364 14300 400 7-851-2519

32''A2-11 6.299 7.0866 13.0000 7.75055 .8268

6.2992 2.7874 4.04727/8 - 9 6-1/8

87-897-575

672 18700 3007-851-3219

A2-20 12.60 13.78 18.2500 11.2505 .8661 1 - 8 6-1/8 7-897-585 7-851-3220

L

4-Jaw Semi-Steel Body, Type A1/A2 Direct Mountwith Hard Solid Jaws• Type A1 spindle has a 2 bolt hole pattern, inside and outside the taperEither an A1 or A2 chuck will fit

• Type A2 spindle has a 1 bolt pattern, outside the taperOnly an A2 chuck will fit

A TypeType 4314





INDEPENDENT CHUCKS

BISON


4-Jaw Steel Body, Type D1 Direct Mount Chuckswith Two-Piece Jaws

ChuckDiameter

D

TaperSize

HoleDiameter

dd1* G B C H

Camlock Studs Set Screw Steel Chuck

Diameter Thread Qty PartNumber

PartNumber

Wtlbs

LoadCapacitylbs**

RPMmax***

PartNumber

8''D1-5

1.9685 1.96853.2505 4.1260 .5906 3.1495 3/4 M12x1

6

7-899-105 7-899-30540 1700 2500

7-857-0835D1-6 4.1880 5.2520 .6299 3.1495 7/8 M16x1.5 7-899-106 7-899-310 7-857-0836

10''D1-5

2.5591 2.95283.2505 4.1260 .5906 3.3465 3/4 M12x1 7-899-105 7-899-305

65 2800 20007-857-1035

D1-6 4.1880 5.2520 .6299 3.3465 7/8 M16x1.5 7-899-106 7-899-310 7-857-1036D1-8 5.5007 6.7480 .7087 3.3465 1 M20x1.5 7-899-108 7-857-1038

12-1/2''D1-6

3.1496 3.77954.1880 5.2520 .6299 3.7402 7/8 M16x1.5 7-899-106

93 4290 15007-857-1236

D1-8 5.5007 6.7480 .7087 3.7402 1 M20x1.5 7-899-108 7-857-1238

15-3/4''

D1-6

3.9370

3.9370 4.1880 5.2520 .6299 4.1339 7/8 M16x1.5 7-899-106

141 8600 1100

7-857-1636D1-8 4.7244 5.5007 6.7480 .7087 4.1339 1 M20x1.5 7-899-108 7-857-1638D1-11 4.7244 7.7507 9.2520 .7874 4.1339 1-3/16 M22x1.5 7-899-111 7-857-1639D1-11 5.5000 7.7507 9.2520 .7874 4.1339 1-3/16 M22x1.5 7-899-111 7-857-1643

20''D1-8

4.9215.3150 5.5007 6.7480 .7087 4.7244 1 M20x1.5 7-899-108

226 12900 7007-857-2038

D1-11 6.1024 7.7505 9.2520 .7874 4.7244 1-3/16 M22x1.5 7-899-111 7-857-2039

25''D1-8 4.9213 5.3150 5.5007 6.7480 .7087 5.5118 1 M20x1.5 7-899-108

389 18600 5507-857-2538

D1-11 6.2992 6.8898 7.7507 9.2520 .7874 5.5118 1-3/16 M22x1.5 7-899-111 7-857-253932" D1-11 7.0866 7.4803 7.7507 9.2520 .7874 6.2992 1-3/16 M22x1.5 7-899-111 900 24300 450 7-857-3239

D Type


machined and centered workpieces ONLY, machined in plain back and direct mount chucksThe maximum load capacity and maximum RPM have been calculated per the following conditions:



Type 4343

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter

D

TaperSize

HoleDiameter

dd1* G B C H

Camlock Studs Set Screw Semi-Steel Chuck

Diameter Thread Qty PartNumber

PartNumber

Wtlbs

PartNumber

8''D1-3

1.9685 1.96852.1250 2.7795 .5118 3.1495 9/16 M10x1 3 7-899-103 7-899-305

377-853-0833

D1-4 2.5005 3.2520 .5118 3.1495 5/8 M10x1 3 7-899-104 7-899-305 7-853-0834D1-5 3.2505 4.1260 .5906 3.1495 3/4 M12x1 6 7-899-105 7-899-305 7-853-0835

10''D1-4 2.3622 2.3622 2.5005 3.2520 .5118 3.3465 5/8 M10x1 3 7-899-104 7-899-305

617-853-1034

D1-5 2.5591 2.9528 3.2505 4.1260 .5906 3.3465 3/4 M12x1 6 7-899-105 7-899-305 7-853-1035D1-6 2.5591 2.9528 4.1880 5.2520 .6299 3.3465 7/8 M16x1.5 6 7-899-106 7-899-310 7-853-1036

12-1/2''D1-6

3.14963.7795 4.1880 5.2520 .6299 3.7402 7/8 M16x1.5 6 7-899-106 7-899-310

877-853-1236

D1-8 3.7795 5.5007 6.7480 .7087 3.7402 1 M20x1.5 6 7-899-108 7-899-310 7-853-1238

15-3/4''D1-6

3.93703.9370 4.1880 5.2520 .6299 4.1339 7/8 M16x1.5 6 7-899-106 7-899-310

1327-853-1636

D1-8 4.7244 5.5007 6.7480 .7087 4.1339 1 M20x1.5 6 7-899-108 7-899-310 7-853-1638D1-11 4.7244 7.7507 9.2520 .7874 4.1339 1-3/16 M22x1.5 6 7-899-111 7-899-310 7-853-1639

20''D1-8

4.92135.3150 5.5007 6.7480 .7087 4.7244 1 M20x1.5 6 7-899-108 7-899-310

2117-853-2038

D1-11 6.1024 7.7505 9.2520 .7874 4.7244 1-3/16 M22x1.5 6 7-899-111 7-899-310 7-853-203925'' D1-11 6.2992 6.8898 7.7507 9.2520 .7874 5.5118 1-3/16 M22x1.5 6 7-899-111 7-899-310 364 7-853-2539

D Type

4-Jaw Semi-Steel Body, Type D1 Direct Mount Chuckswith Hard Solid Jaws

Type 4344

* d1 is the maximum allowed through hole enlargement

INDEPENDENT CHUCKS

BISON


ChuckDiameter

A

ThreadSizeG

HoleDiameter

D

Wtlbs B C C1 K L

Semi-SteelChuck

Part Number5'' 1-1/8 - 12W 1.515 8.6 2.1654 .5 1.5748 2.0079 .7874 7-852-0502

Type 4384

4-Jaw Semi-Steel Body, Type L Direct Mount Chuckswith Hard Solid Jaws

ChuckDiameter

TaperSize

HoleDiameter

dd1* Wt

lbsThreadT G C J K H

Semi-SteelChuck

Part Number

8''L00

1.9685 1.9685 343-3/4 - 6 2.75 2.125 .5512 .3839 4.005 7-854-0841

L0 4-1/2 - 6 3.25 2.500 .5905 .3839 4.449 7-854-0842

10''L00

2.55912.5591

573-3/4 - 6 2.7500 2.1250 .5512 .3839 4.055 7-854-1041

L0 2.9528 4-1/2 - 6 3.2500 2.5000 .5905 .3839 4.449 7-854-1042L1 2.9528 6 - 6 4.1250 2.9921 .6299 .6358 4.961 7-854-1043

12-1/2''L0

3.14963.3465

1194-1/2 - 6 3.2500 2.5000 .5905 .3839 4.724 7-854-1242

L1 3.7795 6 - 6 4.1250 2.9921 .6299 .6358 5.197 7-854-1243L2 3.6220 7-3/4 - 5 5.2500 3.5039 .8661 .7598 5.709 7-854-1244

15-3/4''L1

3.93704.1339

1546 - 6 4.1250 2.9921 .6299 .6358 5.197 7-854-1643

L2 4.7244 7-3/4 - 5 5.2500 3.5039 .8661 .7598 5.709 7-854-164420'' L2 4.9213 5.3150 256 7-3/4 - 5 5.2500 3.5039 .8661 6.0630 6.063 7-854-2044

* d1 is the maximum allowed through hole enlargement

L Type

4-Jaw Semi-Steel Body, Threaded Direct Mount Chuckswith Hard Solid Jaws

Type 4354

For Myford lathes

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


RecommendedChuck

DiameterD* A B C h E Wt

lbsThreadM

PartNumber

4" - 5" 4.095 1.5352.165 1.01500

.709 .5000 81 - 10 7-871-041

2.677 1.51421 1-1/2 - 8 7-871-042

6" - 8" 5.079 1.5352.165 1.01500

.709 .5000 101 - 10 7-871-051

2.677 1.51421 1-1/2 - 8 7-871-052

8" 6.5351.535

3.1891.51421

.787.5000

121-1/2 - 8 7-871-062

1.791 2.26000 .6260 2-1/4 - 8 7-871-063

10" 8.1101.535

3.5831.51421

.866.5000 12 1-1/2 - 8 7-871-082

1.791 2.26000 .6260 13 2-1/4 - 8 7-871-083

10" - 12-1/2" 10.0791.791

4.1732.26000

.984.6260 22 2-1/4 - 8 7-871-103

2.047 2.38500 .7480 25 2-3/8 - 6 7-871-104

12-1/2" 12.638 2.047 4.3312.38500

1.102 .7480 332-3/8 - 6 7-871-124

2.76000 2-3/4 - 8 7-871-125

Type 8262

Rough Threaded Adapters for Independent Chucks

ChuckDiameter D* d D1 K L Wt

lbsPart

Number6-1/4'' 3.94 .79 2.95 1.18 2.17 8 7-870-306

8'' 5.12 1.18 3.74 1.38 2.56 11 7-870-30810'' 7.09 1.57 4.72 1.97 3.35 25 7-870-310

12-1/2'' 8.66 2.17 5.51 2.36 3.74 49 7-870-31215-3/4'' 10.63 2.95 7.48 2.36 5.51 95 7-870-31620'', 25'' 11.02 3.54 7.87 2.36 5.51 99 7-870-320

Semi-Finished Threaded Adapters

Type 8206

* Backplate OD has to be turneddown to fit chuck counterboreSee pages 84 and 85 for plainback chuck dimensions

* Backplate OD hasto be turned down tofit chuck counterboreSee pages 84 and 85for plain backchuck dimensions

INDEPENDENT CHUCKS

BISON


RecommendedChuck

Diameter

TaperSize

Back Plate*ODA

BHole

DiameterC

D E Wtlbs

PartNumber

8" A-6 5.00 1.02 2.13 5.2500 4.1878 6.5 7-873-056

10"A-8 5.00 1.81 3.15 6.7500 5.50055 5.5 7-873-058A-5 7.99 1.5 2.17 4.1250 3.2503 19 7-873-085

10" - 12-1/2" A-6 7.99 1.3 2.17 5.2500 4.1878 15.5 7-873-086

15-3/4"A-6

9.961.3

3.175.2500 4.1878 38 7-873-106

A-8 1.97 6.7500 5.50055 33 7-873-10820" A-6 12.52 1.3 4.06 5.2500 4.1878 45 7-873-126

20" - 25"A-8 12.52 2.17 4.06 6.7500 5.50055 62 7-873-128A-11 15.94 2.95 5.36 9.2520 7.75055 141 7-873-169

32" A-11 19.88 1.77 7.59 9.2520 7.75055 133 7-873-20936", 40" A-15

21.852.78

7.4813.0000 11.2505 242 7-873-3615

49" A-20 3.15 18.2500 16.251 249 7-873-3620

Semi-Machined Type A1/A2 Adapters• For plain back chucks• Designed for direct mounting on A1 and A2 spindle nose• May be used for both scroll and independent chucks• See mounting instructions on page 61

Type 8212

* Backplate OD has to be turneddown to fit chuck counterboreSee pages 84 and 85 for plainback chuck dimensions

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


Semi-Machined Type D1 Adapters• The number of camlock studs needed varies dependingon the spindle size, so please refer to the table below

• Plain back chucks require adapter plates which mayrequire machining to fit

• Type 8242 Adapters are semi-machined for BISONplain back chucks

• Designed for direct mounting on camlock spindle nose

RecommendedChuck

Diameter

TaperSize

Back Plate*ODA

CamlockStud

Diameter

No. ofStuds

HoleDiameter

CD G Wt

lbs

FlangeThickness

B

PartNumber

6-1/4" D1-4 6.38 5/8 3 2.40 3.2520 2.5005 9.3 1.14 7-878-06408" D1-4 8.00 5/8 3 2.40 3.2520 2.5005 27 1.73 7-878-0840

12-1/2" D1-6 9.96 7/8 6 4.06 5.2520 4.1880 35 1.93 7-878-106015-3/4" D1-6

12.527/8 6 4.06 5.2520 4.1880 49 2.76 7-878-1260

20" D1-8 1 6 5.35 6.7480 5.5007 49 2.17 7-878-128025" D1-11 1-3/16 6 7.59 9.2520 7.7505 49 2.17 7-878-1290

32-1/2" - 36" D1-11 19.88 1-3/16 6 7.59 9.2520 7.7505 159 2.83 7-878-2090

Type 8242

* Backplate OD has to be turned down to fit chuck counterbore

See pages 84 and 85 for plain back chuck dimensions

Chuck and Back Plate Selection InstructionThe back plate OD (size A) should match the plain back chuck counter bore diameter (size E), see pages84 and 85. Check the back plate thru hole diameter (size C) and compare it with the chuck bolt circlediameter (size F). Be sure that you have enough room on the back plate body to drill and tap the chuckmounting holes. In the case of “A”, “D”, and “C” back plates, be sure that the chuck mounting bolts willnot interfere with the spindle mounting bolts or camlock studs (diameter D). It is recommended that theplain back chuck bolt circle diameter (size E) be larger than the spindle mounting bolt/camlock stud circlediameter (size D).

INDEPENDENT CHUCKS

BISON


5C Semi-Finished Adapters• Designed for use with self-centering or independent lathe chucks• Made of high quality forged steel• 5C shank is hardened and precision ground for maximum accuracy• Soft flange• BISON chucks and 5C adapters provide accuracy not availablewith standard and precision 5C collets

ChuckDiameter

TaperSize

Back Plate*ODA

HoleDiameter

CD G Wt

lbs

FlangeThickness

B

Studs Semi-MachinedAdapter

Part NumberNo. ofStuds inch mm Thread

mmPart

Number12-1/2" C-6 9.96 4.06 5.2500 4.1880 35 1.93 4 .8465 21.5 M12 - 50 7-921-906 7-921-1060

15-3/4"C-6

12.524.06 5.2500 4.1880

492.76 4 .8465 21.5 M12 - 50 7-921-906 7-921-1260

C-8 5.35 6.7500 5.50075 2.17 4 1.063 27.0 M16 - 60 7-921-908 7-921-128020" - 25" C-11 12.52 7.59 9.2520 7.75075 49 2.17 6 1.339 34.0 M20 - 75 7-921-911 7-921-129032" - 36" C-11 25 7.59 9.2520 7.75075 232 2.83 6 1.339 34.0 M20 - 75 7-921-911 7-921-2590

DIN 55027 Semi-Machined Type C Spindle Adapters

Type 8232

Type 8289

* Backplate OD has to be turned down to fit chuck counterboreSee pages 84 and 85 for plain back chuck dimensions

ChuckDiameter

ChuckPart Number Shank

FlangeDiameter

D

HoleDiameter

dL Thread Adapter

Part Number

3" and 4" 7-850-03005C

4".866 4.41 1-1/4 - 20

7-909-304

5" and 6"7-850-0500

5" 7-909-3057-850-0600

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter A B C D D1 E G H K L M N O O1

Hard ReversibleJaws1 Pc

Part Number

8"1.3386

1.3858 .4996 .4331 .6693.1260

.3130 1.7126 .8760 3.2283 .7874 1.2598 .3740 .4134 7-890-20810" 1.5748

.7496

.5512 .8268

.5004

2.0276 1.0630 3.7992 1.0236 1.4567 .4724 .5118 7-890-21012-1/2"

1.65351.8858 2.1654 1.2500 4.4291 1.1811 1.6929 .5118 .5512 7-890-212

15-3/4" 2.2598 .7087 1.0236

.2480

2.5394

1.500

5.0787 1.9409 1.3760 .5315 .5709 7-890-216H20"

2.12602.2835 .8661 1.2598

3.22635.3150 2.0866 1.2598

8268 8268 7-890-220H25" .8268 .8268 7-890-220H32"

2.83463.4647 1.1024 .9449 7-890-232H

36", 40", 49" 3.8190 6.2992 2.3622 - 1.9685 - 7-890-249H

8" to 10" Diameters 20" Diameter 36" to 49"Diameters

12" and 16"Diameters

25" to 32"Diameters

ChuckDiameter A B C E F G H J K L M N

Hard MasterJaws1 Pc

Part Number

8" 1.2598 1.3071 0.4996 0.1575 0.3937 0.3126 1.2598 0.3425 0.8760 3.1102 3/8-16 Tr 28x5 7-890-30810" 1.2598 1.4764 0.7496 0.1575 0.3937 0.500 1.4961 0.3425 1.0630 3.7008 1/2-13 Tr 28x5 7-890-310

12-1/2" 1.5748 1.7874 0.7496 0.1575 0.4724 0.500 1.5354 0.3819 1.2500 4.3307 1/2-13 Tr 32x6 7-890-31215-3/4" 1.5748 2.1614 0.7496 0.2835 0.4724 0.500 1.7321 0.3819 1.500 5.0787 5/8-11 Tr 32x6 7-890-316

20" 2.0472 2.1850 0.7496 0.2835 0.5906 0.500 2.3228 0.4606 1.500 6.6142 3/4-10 Tr 36x6 7-890-32025" 2.0472 2.1850 0.7496 0.2835 0.5906 0.500 2.3228 0.4606 1.500 8.1102 3/4-10 Tr 40x6 7-890-32532" 2.7559 2.1850 0.7496 0.2835 0.7874 0.500 2.3228 0.6181 1.500 8.1102 3/4-10 Tr 44x8 7-890-332

32"/T 2.7559 2.1850 0.7496 0.2835 0.7874 0.500 2.3228 0.6181 1.500 8.1102 3/4-10 Tr 44x8 7-890-33236", 40", 49" 2.7559 2.1850 0.7496 0.2835 0.7874 0.500 2.3228 0.6181 1.500 9.6063 3/4-10 Tr 44x6 7-890-336

Hard Master Jaws

Hard Top Reversible Jaws

8" to 12-1/2" Chuck Diameters 15-3/4" to 40" Chuck Diameters 49" Chuck Diameter

INDEPENDENT CHUCKS

BISON


Medium andHeavy DutySoft Top Jaws• All top jaws are American• Standard tongue and groove• Sold by piece

ChuckDiameter A

3 and4-JawB

2, 3, and4-JawB*

C D E F G H I J K

BoltSizeM

3-Jaw

Wtlbs

MediumSoft TopJaws

HeavyDuty

Soft TopJaws*

Part Number5" 2.520 0.866 - 1.520 .3129 0.5910 1-1/4 .500 1.000 .1260 .283 - 5/16-18 .66 7-884-305 -

6-1/4" 3.071 1.000 1.575 1.634 .3129 0.8386 1-1/2 .500 1.339 .1260 .283 .118 3/8-16 1.01 7-884-306 7-884-2068" 3.543 1.063 1.575 1.713 .3129 0.9488 1-3/4 .500 1.575 .1260 .283 .197 3/8-16 1.43 7-884-308 7-884-20810" 4.173 1.280 1.850 2.028 .5000 1.0827 2-1/8 .750 1.772 .1260 .283 .315 1/2-13 2.54 7-884-310 7-884-210

12-1/2" 4.724 1.457 2.047 2.165 .5000 1.2087 2-1/2 .750 2.087 .2480 .283 .394 1/2-13 3.53 7-884-312 7-884-21215-3/4" 5.512 1.654 2.047 2.539 .5000 1.3543 3 .750 2.480 .2480 .406 .512 5/8-11 4.85 7-884-316 7-884-216

20" 5.512 1.654 - 2.933 .5000 1.3543 3 .750 2.480 .2480 .406 - 3/4-10 5.29 7-884-320 -25”- 32” 6.299 2.047 - 3.288 .5000 1.3543 3 .750 2.480 .2480 .406 - 3/4-10 9.26 7-884-325 -36"- 49" 6.299 2.835 - 3.819 .5000 1.1583 3 .750 2.284 .2480 .406 - 3/4-10 16.00 7-884-332 -

Hard Solid Jaws

ChuckDiameter A B C D

Thread H EHard Solid JawsPart Number4 Pc Set

Hard Solid JawsPart Number

1 Pc3-1/2" 1.3385 1.1800 0.5100 Tr 16x2 left .1969 .1772 7-890-103 7-890-1030

4" 1.3385 1.1800 0.5100 Tr 16x2 left .1969 .1772 7-890-104 7-890-10405" 2.0078 1.3583 0.6299 Tr 18x4 left .1968 .2362 7-890-106 7-890-1060

6-1/4" 2.0078 1.3583 0.6299 Tr 18x4 left .1968 .2362 7-890-106 7-890-10608" 3.1890 2.4803 1.2598 Tr 28x5 left .3937 .3425 7-890-108 7-890-108010" 3.7992 2.4803 1.2598 Tr 28x5 left .3937 .3425 7-890-110 7-890-1100

12-1/2" 4.3700 3.0118 1.5748 Tr 32x6 left .4724 .3819 7-890-112 7-890-112015-3/4" 5.0787 3.0118 1.5748 Tr 32x6 left .4724 .3819 7-890-116 7-890-1160

20" 6.0039 3.6811 2.0472 Tr 36x6 left .5905 .4606 7-890-120 7-890-120025" 6.9685 3.6811 2.0472 Tr 40x6 left .5905 .4606 7-890-125 7-890-125032"

7.9527 4.5078 2.7552 Tr 44x8 left .7874 .6181 7-890-132 7-890-132032"/T

* Designed for 2-jaw chucks, these jaws can be used as heavy duty jaws on 3 and 4-jaw chucks

INDEPENDENT CHUCKS

IND

EPEND

ENT

CHU

CKSBISON


ChuckDiameter

OperatingScrew1 Pc

ThrustBearing1 Pc

Wrench1 Pc

Wrench,Heavy Duty

1 Pc

OD OAL PartNumber OD OAL Part

NumberPart

NumberPart

Number3-1/2"

.6301.14 7-890-603 .51 .87 7-890-703

7-889-003 -4" 1.319 7-890-604 .512 .95 7-890-7045"

.709 1.577-890-606

.711.04 7-890-706

7-890-906 -6-1/4" 7-890-606 1.04 7-890-706

8"1.1

2.83 7-890-6081.18

1.91 7-890-7087-890-910 -

10" 3.15 7-890-610 2.11 7-890-71012-1/2"

1.264.13 7-890-612

1.422.32 7-890-712

7-890-916 7-889-012C15-3/4" 5.31 7-890-616 2.52 7-890-716

20" 1.42 6.57 7-890-620 1.57 2.84 7-890-7207-890-925 -

25" 1.57 8.74 7-890-625 1.77 3.15 7-890-72532"

1.7311.6 7-890-632

1.89 3.52 7-890-732

7-890-932 -32"/T 10.2 7-890-63336"

1.7312.7 7-890-636

1.89 4.33 7-890-73640" 13.8 7-890-64049" 18.4 7-890-649

Spare Parts

Mounting Bolts for Hard and Soft Top Jaws• Sold by piece

L

ChuckDiameter

BoltThread

Screw No. 1 Screw No. 2

L PartNumber L Part

Number8” 3/8”-16 .79 7-897-810 1.2 7-897-812

10” and 12” 1/2”-13 1 7-897-814 1.6 7-897-81616” 5/8”-11 1.2 7-897-818 1.8 7-897-82020” 3/4”-10 1.6 7-897-822 2.2 7-897-82625” 3/4”-10 1.6 7-897-822 2.4 7-897-82832” 3/4”-10 1.6 7-897-822 2.6 7-897-830

36”, 40”, and 49” 3/4”-10 1.8 7-897-824 1.8 7-897-824

INDEPENDENT CHUCKS

BISON


Radial T-slot Table Face Plate Jaws• Heavy semi-steel body• Hard solid reversible jaws• Each set of jaws is furnishedwith mounting bolts (M20)and a wrench

• Sold in a 4 piece set

Type 9170JawSize A B C D E F G H J K L N N1 P R S T Wt

lbsPart

Number6" 6.00

4.335.12 6.3 1.34

1.5.50 1.575 10.25

.8668.0

6.35.00

1.00.551

1.00110 7-645-006

8" 8.00 5.5 6.685 1.5 .85 2.047 12.2 10.0 6.00 .669 140 7-645-008

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


4-Jaw Independent, Extra Heavy Duty Chucks with ForgedSteel Solid Body and Extra Large Thru-Hole

Standard Accessories:• 1 Set of two-piece reversible jaws(hard top jaws and hard master jaws)

• 1 Wrench• 1 Set of mounting bolts• 2 Allen keys• 1 Eye bolt

Optional Accessories:• Hard top jaws• Chuck wrench with the flat T-bar end• Chuck wrench for fast jaw movement

Note:Type A1 Spindle has a 2 Bolt Hole Pattern(inside and outside the taper)Either an A1 or A2 Chuck will fit

Camlock “D”Direct Mount

A2Direct Mount

1. Chuck body3. Operating screw4. Thrust bearing5. Set screw6. Master jaw7. Hard top jaw8 and 9. Jaw mounting bolts10. Chuck mounting bolts11. Heavy duty wrench12. T-slot screw

OIL COUNTRY CHUCKS

BISON


ChuckDiameter

A

Type ofMounting

HoleDiameter

Cinch (mm)

B+.001 D G H I K L N E F RPM

maxWtlbs

PartNumber

Direct Mount A2, Type 4317

15-3/4"A2-8 5.3 (135) 5.50075 6.750 5.71 6.067 2981 .709 2.362 .748 M16x2 .961 1200 320 7-859-1620A2-11 6.5 (165) 7.75075 9.2500

5.71 6.067 2.981.709

2.362 .748M20x2.5 1.118

1200 302 7-859-1625

20"A2-11 6.5 (165) 7.75075 9.2500

.8661000 450 7-859-2033

A2-15 8.0 (205) 11.251 13.000 M24x3 1.34 1000 414 7-859-2043

25"A2-15 10.5 (267) 11.251 13.000

6.10 6.579

3.571 .866 2.953 .866 M24x3

1.34850

684 7-859-2543A2-20 12.55 (320) 16.251 18.252 1.50 662 7-859-2555

28"A2-15 10.5 (267) 11.251 13.000 1.34

750915 7-859-2845

A2-20 12.55 (320) 16.251 18.252 1.50 873 7-859-2853

32"A2-15 10.5 (267) 11.251 13.000

6.50 6.9721.34

6001290 7-859-3243

A2-20 12.55 (320) 16.251 18.252 1.50 1246 7-859-3255A2-20 14.5 (368) - - - - 7-859-3257

40" A2-28 20.86 (530) 23.001 25.500 6.89 7.366 3.571 1.10 2.953 .866 M30x3.5 1.53 430 1687 7-859-4063Direct Mount D1, Type 4347

15-3/4"D1-8 5.3 (135) 5.50075 6.7500

5.71 6.067 2.981.709

2.362 .748

1 21200

300 7-859-6150D1-11 6.5 (165) 7.75075 9.2520 1.25 2.4 282 7-859-6153

20"D1-8 5.3 (135) 5.50075 6.7500

.8661 2

1000468 7-859-6200

D1-11 6.5 (165) 7.75075 9.2520 1.25 2.4 452 7-859-620328" D1-11 7.5 (192) 7.75075 9.252 6.10 6.579 3.57 2.953 .866 1.25 2.4 750 993 7-859-6839

Plain Back, Type 430740" Plain Back 22.05 (560) 28.5433 25.4961 6.89 7.366 3.571 1.10 2.953 .866 1-1/4”-7 1.53 430 1690 7-859-4021


Type A MountType 4317

Type D MountType 4347

Plain BackType 4307

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


ChuckDiameter

Type ofMounting

HoleDiameter

Hard TopReversible Jaws

1 Pc

Hard MasterJaws1 Set

ThrustBearing1 Pc

Wrench withSliding Bar*

1 Pc

OperatingScrew1 Pc

15-3/4"A2-8 / D1-8 5.3

7-890-2223

7-890-1625

7-890-7165 7-890-9323

7-890-6163A2-11 / D1-11 6.5 7-890-6165

20"D1-8 5.3

7-890-20257-890-6203

A2-11 / D1-11 6.5 7-890-6205A2-15 8.0 7-890-6208

25"A2-15 10.5

7-890-2323 7-890-33257-890-7255

7-890-9325

7-890-6257A2-20 12.5 7-890-6259

28"A2-15 10.5 7-890-6277A2-20 12.5 7-890-6279

32"A2-15 10.5

7-890-7325

7-890-6327A2-20 12.5 7-890-6329

40"A2-28 20.56

7-890-2340 7-890-33407-890-6340

Plain Back 22.05 7-890-6341


ChuckDiameter

D

Type ofMounting

GrippingForce

ClampingCapacity

WrenchTorque Nm

Jawlbf

Mind1

Maxd2

15-3/4"A2-8 / D1-8

350 7057 1.00 15.75A2-11 / D1-11

20"D1-8

350 7057 1.77 19.68A2-11 / D1-11A2-15

25"A2-15

400 81601.97

24.80A2-20 3.94

28"A2-15

450 90402.95

27.95A2-20 3.94

32"A2-15

450 90405.12

31.50A2-20 7.09

40" A2-28 / Plain Back 500 9920 13.78 39.40

Chuck Parameters

Spare Parts

* See page 104 for more wrenches

OIL COUNTRY CHUCKS

BISON


TaperSize

Camlock Studs Set Screw

Diameter Thread PartNumber

Qtyper Chuck

PartNumber

D1-8 1 M20 x 1.5 7-899-1086

7-899-310D1-11 1-3/16 M22 x 1.5 7-899-111 7-899-310

L


Short Screw Long Screw

L PartNumber L Part

Number15-3/4"

3/4 - 10

1-1/2

7-897-558 2-1/2 7-897-56020"25"

7/8 - 9 7-897-572 2-3/4 7-897-57328"32"40"

Top Jaw Mounting Bolts

ChuckDiameter

TaperSize

Thread*Size L

Bolt CircleDiameter

D

QtyperChuck

PartNumber

15-3/4"A2-8 M16 x 2

4.56.750

8

7-859-91645A2-11 M20 x 2.5 9.2500

7-859-9204520"

A2-11 M20 x 2.5 9.2500A2-15 M24 x 3 6 18.250 7-859-92460

25"A2-15

M24 x 36 13.000

7-859-92465

A2-20 6.5 18.252

28"A2-15

M24 x 36 13.000

A2-20 6.5 18.252

32"A2-15

M24 x 36 13.000

A2-20 6.5 18.25240" A2-28 M30 x 3.5 7 25.500 7-859-93070

Type A Spindle Mounting Bolts, Metric, DIN

D

*Bolts with imperial threads are stocked items and available upon orderNOTE: Inch thread bolts are available on special order

Camlock Studs and Set Screws

ChuckDiameter Mount

ThreadSizeE

LBolt CircleDiameter

D

QtyperChuck

PartNumber

40" Plain Back 1-1/4 - 7 8.5 25.4961 8 7-897-5925

Plain Back Mounting Bolts

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


ChuckDiameter A B C D D1 E E1 G H K L O O1 P P1 Wt

lbs

JawPart

Number15-3/4"

2.362

2.248 .7496

.866 1.295

.248 .1575 .5004

3.228

1.500

5.378 .827 .827 1.693 .8661 6.1 7-890-222320"25"

2.953 .990 1.363 3.819 5.343 1.102 1.102 1.969 .9055 8.87-890-232328"

32"40" 7-890-2423

Hard Top Jaws

Hard Master Jaws

ChuckDiameter A B C E F G H J K L M N

mmWtlbs

JawPart

Number15-3/4"

2.047

2.244 .7496 .2835 .7874 .5000

2.283

.6181 1.50

5.1973/4 - 10 Tr 44x8 LH

5.51 7-890-162520" 6.693 4.85 7-890-202525”

2.756 2.275 8.189 7/8 - 9 Tr 50x8 LH 10.25 7-890-332528”32”40"

OIL COUNTRY CHUCKS

BISON


Chuck Wrenches for 4-Jaw Independent and 3-Jaw ScrollOil Country Chucks• Made of steel• Wrenches are designed for fast chuck jaw movement• Wrench square size 0.866" (22mm)• Sizes in mm

Part No. Series: 7-859-Diameters: 20", 25", 28" and 32"

Part No. Series: 7-825-Diameters: 25" and 32"

Wrench for fast jaw movementPart No. 7-890-9326

Wrench with flat endPart No. 7-890-9327

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


ChuckDiameter

HoleDiameter

ThreadSize dmm

H L SquareS

Operating ScrewPart

Number

15-3/4"5.3"

44 x 8 LH

1.9295.079

.748(19mm)

7-890-61636.5" 4.488 7-890-6165

20"5.3"

2.3427.047 7-890-6203

6.5" 6.457 7-890-62058.0" 5.669 7-890-6208

25"10.5"

50 x 8 LH

2.3626.988

.866(22mm)

7-890-625712.5" 5.925 7-890-6259

28"10.5"

2.9538.563 7-890-6277

12.5" 7.500 7-890-6279

32"10.5"

3.543

10.335 7-890-632712.5" 9.272 7-890-6329

40"20.56" 8.386 7-890-634022.05" 8.465 7-890-6341

Operating Screws

OIL COUNTRY CHUCKS

BISON


3-Jaw Self-Centering Extra Heavy Duty Chuckswith Forged Steel Body and Large Thru-Hole

Type A1Mount

Standard Accessories:• 1 Set of two-piece heavy duty reversible jaws(hard top jaws and hard master jaws)

• 1 Wrench• 1 Set of mounting bolts and eye bolt

Optional Accessories:• Soft top jaws• Hard top jaws• Special heavy duty wrenches, see page 104

1. Chuck body2. Back cover3. Scroll4. Pinion5. Pinion half ring6. Pinion sleeve7. Master jaw8. Hard top jaw9. Nipple10. Chuck mounting bolts11 and 13. Chuck assembly bolts12. Spindle locating pin14. Heavy duty wrench15 and 16. Jaw mounting bolts

Type A2Mount

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


ChuckDiameter

D

Type ofMounting

HoleDiameter

d B G H h C S N L k ThreadM

RPMmax

Wtlbs

PartNumber

Direct Indirect* inch mm15-3/4" - A2-11 5.118 130 9.2500 7.75075 4.330 3.425 .750 2.980 5.345 5.354 .748 M20 x

2.51400 336 7-825-1611

20"A2-11 - 7.48 190 9.2500 7.75075 4.685 3.425 .750 2.980 5.345 6.535 .748 1000 560 7-825-2011

- A2-15 8.00 200 13.0000 11.251 4.685 3.425 .750 2.980 5.345 6.535 .748

M24 x 3

1000 530 7-825-2025

25"A2-15 - 10.75 273 13.0000 11.251 5.669 3.642 .813 3.295 5.315 8.268 .866 850 615 7-825-2515

- A2-20 12.55 319 18.2500 16.251 5.669 3.642 .875 3.295 5.315 8.268 .866 850 555 7-825-2520

32"A2-15 - 10.75 273 13.0000 11.251 5.906 3.642 .813 3.295 5.315 8.268 .866 600 1108 7-825-3215A2-20 - 12.55 319 18.2500 16.251 5.906 3.642 .945 3.295 5.315 8.268 .866 600 1080 7-825-3220

ChuckDiameter

D

Type ofMounting

Total Gripping Force Clamping Capacity Max LoadCapacityper Chuck

lbs

RPMmax

Max Wt ofWorkpiece

lbs

WrenchTorqueNm

Jawlbs

Mind1

Maxd2

15-3/4"A2-6

350 18500 1.00 15.75 3250 1400 6500A2-8A2-11

20"A2-11

450 20700 1.77 19.68 5200 1000 10400A2-15

25"A2-15

570 229503.15

24.80 7800 850 15600A2-20 6.30

32"A2-15

590 255005.12

31.50 10400 600 20800A2-20 7.09

Chuck Parameters

3-Jaw Self-Centering Chuck Dimensions

3-Jaw Self-Centering Extra Heavy Duty Chuckswith Forged Steel Body and Large Thru-Hole

*All indirect mount chucks are provided with a fully machined adapterNOTE: No thru hole enlargement

T-slot

Direct Mount Indirect Mount

3515-HD 3575-HD

OIL COUNTRY CHUCKS

BISON


ChuckDiameter

TaperSize

Hard MasterJaws

3 Pc Set

Hard TopJaws

3 Pc Set

Scroll PinionPinion

Half RingPinionSleeve Wrench

OD H Wtlbs

PartNumber OD Length Wt

lbsPart

Number

15-3/4"A2-6 7-885-5163 7-883-5163

12.9 1.322.7

7-887-516 1.73 3.62 1.19 7-886-5167 7-888-716 7-888-516 7-889-025A2-8 7-885-5165 7-883-5165 23.4A2-11 7-885-5167 7-883-5167 23.4

20"A2-11

7-885-5207 7-883-5207 16.4 1.236.4 7-887-520

1.97

4.45 2.1 7-886-520 7-888-720 7-888-5207-889-720

A2-15 31.5 7-887-5210 4.06 1.85 7-886-5210 7-888-7205 7-888-5205

25"A2-15 7-885-5258 7-883-5258

21.3 1.665.7 7-887-525 5.24 2.25 7-886-5258

7-888-725 7-888-5257-889-725

A2-20 7-885-5289 7-883-5289 51.4 7-887-5289 4.61 2.03 7-886-5289

32"A2-15 7-885-5328 7-883-5328

27.4 1.75150 7-887-5328 6.71 3.02 7-886-5328

7-889-732A2-20 7-885-5329 7-883-5329 144 7-887-5329 6.10 3.02 7-886-5329

Spare Parts

ChuckDiameter

TaperSize

ThreadSize M Length

Bolt Circle Diameter Qty perChuck

PartNumberA2 Direct A2 Indirect

15-3/4"A2-8 M16 x 2 4.5 6.7500 -

6

7-897-1273A2-11 M20 x 2.5 4 - 9.2500 7-897-1322

20"A2-11 M20 x 2.5 5 9.2500 - 7-897-1325A2-15 M24 x 3 2.2 - 13.000 7-897-1420

25"A2-15 M24 x 3 6 13.0000 - 7-897-1426A2-20 M24 x 3 5 - 18.252 7-897-1423

32"A2-15 M24 x 3 6 13.0000 - 7-897-1426A2-20 M24 x 3 5 18.2500 - 7-897-1423


Short Screw 2 Long Screw 1

L PartNumber L Part

Number15-3/4"

3/4”-101-1/2

7-897-821 2-1/2 7-897-82920"25"

7/8”-9 7-897-850 2-3/4 7-897-86032"

Top Jaw Mounting Bolts

Type A Spindle Mounting Bolts

A1

A2

OIL COUNTRY CHUCKS

OIL

COU

NTRY

CHU

CKSBISON


ChuckDiameter

OALA B K H G F J L D E C S Thread

M

Wtlbs1 Pc

15-3/4" 5.35431.969

1.50 2.248 .7496 .488 .283 1.299.6299 .5512 2.146

.1263/4”-10

3.520" 6.5354 4.325"

8.858 2.756 .787 .787 2.441 7/8”-9 11.1532"

ChuckDiameter

OALA B K H G F J D E C N O P

Wtlbs1 Pc

15-3/4"

5.3152.362

1.50 2.248 .7496 .5004 .248.866 1.299 3.229 .827 2.047 3.366 5.06

20"25"

2.953 .945 1.378 3.543 .984 2.047 3.366 8.7032"

Hard Top Jaws

Hard Master Jaws

Diameter: 15-3/4" Diameters: 25" - 28"Diameter: 20"

ROTATING CHUCKS

BISON


3-Jaw Self-Centering Chucks with Fine Adjustment SET-TRU.0005" T.I.R. Repeatability• These precision chucks are used in tailstocks forjobs where centers cannot be used, such astube machining• Steel body construction, with hardened andground scroll and pinions• Hardened and ground MT spindle• Sealed ball bearings, lubrication through oiler• 4 fine adjustment screws provide .0005" T.I.R.repeatability• Threaded end with threaded plug with tang

Standard Accessories for 4" Diameter Chucks:• 2 Sets of hard solid jaws (ID and OD)• 1 Wrench• 1 Hex key

ChuckDiameter


Hard TopJaws3 Pc Set

Hard Solid JawsSoft Top Jaw

1 PcScroll1 Pc

Pinion1 Pc

Wrench1 Pc

FineAdjustmentScrews1 Pc

OD3 Pc Set

ID3 Pc Set

Part Number4" - - 7-880-304 7-881-304 - 7-887-304 7-886-304

7-889-0057-897-6041

5" 7-885-305 7-883-305 - - 7-884-305 7-887-505 7-886-505 7-897-60516-1/4" 7-885-306 7-883-306 - - 7-884-306 7-887-506 7-886-506 7-889-008 7-897-6061

ChuckDiameterD

Clamping RangeL L1 L2 h Thread

dRPMmax

MTNo.

Wtlbs

RotatingChuck

BodyOnly

min max Part Number4" 0.12 3.27 8.70 5.24 2.68 0.67 1/2" - 13 2500 3 14.9 7-861-0400 -5" 0.12 4.92 9.65 6.12 2.81 0.79 5/8" - 11 2000 4 22.7 7-861-0500 7-861-9500

6-1/4" 0.12 6.30 11.22 6.16 2.70 1.26 5/8" - 11 1800 5 71.3 7-861-0600 7-861-9600

Spare Parts

Type 9165Type 9164

Standard Accessories for 5" and 6" Diameter Chucks:• 1 Set of two-piece reversible jaws(hard top jaws and hard master jaws)• 1 Wrench• 1 Hex key

Optional Accessories:• 4" diameter: Soft solid jaws• 5" and 6" diameters: Soft top jaws• 4" and 6" diameters: Jaw SET-TRU chuck• 5" diameter: 5C collet chuck• 5" and 6" diameters: rotating body

Rotating chucks areprovided in a in awooden case

5" and 6" diameters with AmericanStandard Tongue and Groove Jaws

ROTATING CHUCKS

ROTATIN

GCH

UCKS

BISON


ChuckDiameter


Hard TopJaws3 Pc Set

Hard Solid Jaws Soft TopJaw1 Pc

Scroll1 Pc

Pinion1 Pc

Wrench1 PcOD

3 Pc SetID

3 Pc SetPart Number

3" - - 7-880-303 7-881-303 - 7-887-303 7-886-303 7-889-0034" - - 7-880-304 7-881-304 - 7-887-304 7-886-304 7-889-0055" 7-885-305 7-883-305 7-880-305 7-881-305 7-884-305 7-887-305 7-886-305 7-889-005

6-1/4" 7-885-306 7-883-306 7-880-306 7-881-306 7-884-306 7-887-306 7-886-306 7-889-008

3-Jaw Self-Centering Chucks with MT Shanks• These precision rotating chucks are used intailstock for jobs where centers cannot beused such as tube machining• Steel body construction, with hardenedand ground scroll and pinions• Hardened and ground MT shank• Sealed ball bearings, lubrication through oiler• 3-Jaw lathe chucks can be easily removed andreplaced with:

4-Jaw scroll chucks (5" and 6" diameters)Face plates (6" diameter)Tapered heads (3" to 5" diameters)5C collet chucks (5" diameter)

• 5" and 6" diameters with American StandardTongue and Groove Jaws

ChuckDiameterD

MTNo.

Clamping RangeL L1 L2 RPM

maxWtlbs

SolidJaws*

2-PieceJaws*

BodyOnly**

AdapterOnly***

min max Part Number

3"2 0.08 2.80 6.99 3.84 1.73

40008.0 7-860-0300

-7-573-032

-3 - - - - - - - 7-573-033

4"3 0.12 3.66 8.09 4.19

2 350013.5 7-860-0400

-7-573-043 7-860-7004

4 - - - - - - 7-573-044 7-860-7004

5"4

0.12 4.929.63 4.78 2.0

320025 7-860-0500 7-865-0500 7-573-054 7-860-7005

5 11.4 5.20 2.2 32 - - 7-573-055 7-860-70056-1/4" 5 0.12 6.3 11.77 5.24 2.56 3000 34 7-860-0600 7-865-0600 7-573-065 7-860-7006

Type 9154 Type 9155

Standard Accessories for 3" and 4" diameter chucks:• 2 Sets of hard solid jaws (ID and OD)• 1 Wrench• 1 Hex key

Standard Accessories for 5" and 6" diameter chucks:• 1 Set of two-piece reversible jaws(hard top jaws and hard master jaws)• 1 Wrench• 1 Hex key

Optional Accessories:• 3" and 4" diameters: Soft solid jaws• 5" and 6" diameters: Soft top jaws• 3" thru 5" diameters: Special tapered heads• 6" diameter: Face plate and 5" diameter 5C collet chuck

Spare Parts

Part Number: 7-860-0600

* Tanged end** Threaded end*** 4-Jaw independent chucks only

Part Number: 7-865-0600 Part Number: 7-573-

ROTATING CHUCKS

BISON


3-Jaw Heavy Duty Self-Centering Chucks with MT ShankFeatures:• Heavy duty rotating chucks are used in tailstocks for jobs where lathe centers cannot beused, i.e., tube machining• Forged steel body construction, with hardenedand ground MT shank• Scroll, pinions and master jaws are standardBison parts• Chucks are provided with two precision heavyduty roller bearings and one ball thrust bearing

Standard Accessories:• 1 Set of master jaws• Mounting bolts• 1 Wrench

Optional Accessories:• Soft top jaws

ChuckDiameterA

B C L M MTNo.

RPMmax

Max LoadCapacitylbs

Wtlbs

ChuckPartNumber

Spare Parts

Hard TopJaws

Soft TopJaws

HardMasterJaws

Scroll Pinion

Part Number12-1/2" 4.91 5.17 10.26 5/8"-11 UNC 5 300 5500 135 7-843-1295 7-883-3120 7-884-312 7-885-312 7-887-512 7-886-51215-3/4" 5.69 6.00 13.17 1"-8 UNC 6 200 13000 237 7-843-1695 7-883-3160 7-884-316 7-885-316 7-887-516 7-886-516

Type 9188

Spare Parts

COLLET CHUCKS

COLLET

CHU

CKSBISON


5C High Speed Collet Chucks

Type 3974-4

MINI High Speed 0.0004"• 8000 RPM• Forged Steel Body• 4" Diameter• PLAIN BACK Part Number 7-862-0401• See page 114

Type 3911

UNIVERSAL 0.0004"• 6000 RPM• Forged Steel Body• 5" Diameter• PLAIN BACK Part Number 7-862-0501• D1 and Threaded DIRECT MOUNTPart Number 7-862-051

• See page 115

Type 3974-5CT

THREADED 0.0004"• 6000 RPM• Forged Steel Body• Threaded nose 2-3/16-10• Adapters: A, D1, L, DIN and Threaded• 5" Diameter• PLAIN BACK Part Number 7-862-0502• See page 115

Type 3960-5C

SET-TRU 0.0004"• 6000 RPM• Forged Steel Body,• Adapters: A, D1, L, DIN and Threaded• 5" Diameter• FLAT BACK Part Number 7-862-0505• See page 116

Type 3975

TRU LENGTH 0.0004"• 6000 RPM• Forged Steel Body• Adapters: A, D1, L, DIN and Threaded• 5" Diameter• PLAIN BACK Part Number 7-862-0503• See page 115

COLLET CHUCKS

BISON


ChuckDiameter Spindle Size Part

Number

4"

1" -10 7-922-0431-1/8" 12W 7-922-0451-1/2" - 8 7-922-046D1-3 7-878-043D1-4 7-878-044D1-5 7-878-045

Mini High Speed Plain Back 5C Collet Chuckswith 4" O.D., 8000 RPM, 0.0004" T.I.R.• High quality forged steel body• Designed for use with all 5C collets• 3 pinion design• Can be used for turning, facing, boring, grinding, andmilling operations on center lathes and grinding machines

• The simple key operated scroll provides a uniform,distortion free clamping of work pieces and low colletexchange times

• Their simple design, rugged construction, and fineworkmanship assures high quality and long service life

• Scroll is fully hardened and ground for longer life• Pinions are hardened and ground• Each chuck is balanced within fine limits

Standard Accessories:• 1 Chuck wrench• 2 Sets of mounting bolts (front and back)• 1 Hex key

Adapter plates for D and Threaded spindles as wellas 5C adjustable collet stop for the 5C collet chuckare available

ChuckDiameter

Mounting

5C ColletCapacity

Wtlbs

ChuckPart

Number

Spare Parts

Scroll1 Pc

Pinion1 Pc

Wrench1 Pc

FrontMounting

Bolt1 Pc

BackMounting

Bolt1 Pc

Hex Key1 Pc

Part Number4" Plain Back 3/64 x 1-1/8 7.0 7-862-0401 7-887-103 7-886-103 7-889-103 7-862-977 7-862-972 6-999-586

Collet Sets Part Number18 piece 1/16” - 1-1/8” by 16ths 7-168-16835 piece 1/16” - 1-1/8” by 32nds 7-168-18569 piece 1/16” - 1-1/8” by 64ths 7-168-19024 piece 3mm - 26mm by 1mm 7-168-674

Description Part Number1/16” Steel 7-168-404

Collet Sets Emergency ColletsFinished Adapter Platesfor Threaded and D1Lathe Spindles

Universal 5 Pc 5C Collet StopPart Number: 7-460-210

Adjustable 5C Collet StopPart Number: 7-460-200

Type 3974-4

COLLET CHUCKS

COLLET

CHU

CKSBISON


* See page 61for mountinginstructions

ChuckDiameter

TaperSize

PartNumber

5"

A-5 7-877-055A-6 7-877-056A-8 7-877-058D1-3 7-878-053D1-4 7-878-054D1-5 7-878-055D1-6 7-878-056D1-8 7-878-058L00 7-879-051

C-2 / DIN-2 7-921-052M39 x 4 7-922-051

2-3/16" - 10 7-922-053

• Scroll is fully hardened and ground for longer life• Pinions are hardened and ground

Standard Accessories:• 1 Chuck wrench• 1 Set of mounting bolts• 1 Hex keyAdapter plates for A, D, DIN, Threaded and NST50spindles as well as 5C adjustable collet stop forthe 5C collet chuck are available

ChuckDiameter Mounting Type

5C ColletGripping Capacity

inches

Wtlbs

PartNumber

5"

Plain Back 3911-5C 3/64 to 1-1/8 12 7-862-0501Direct Mount

D1-43944-5C

3/64 to 1-1/8 15

7-862-0511D1-5 7-862-0512

1-1/2" x 83984-5C

7-862-05152-1/4" x 8 7-862-0517

Chuck with Threaded Nose 2-3/16 x 10Plain Back 3974-5C 3/64 to 1-1/8 12 7-862-0502

Shoulder Length Stop 7-862-953TRU-LENGTH

Plain Back 3975-5C 3/64 to 1-1/8 13 7-862-0503

Machined* Adapters for A, D,DIN, and Threaded Lathe Spindles

UniversalType 3911

TRU LENGTHType 3975

ThreadedType 3974-5C

Semi-machined Adaptersfor Threaded Lathe Spindles

ChuckSize

SpindleSize

PartNumber

5"1 x 10 7-871-0511-1/2 x 8 7-871-052Rough 7-870-105

ChuckDiameter

Scroll1 Pc

Pinion1 Pc

Wrench1 Pc

MountingBolts1 Pc

Part Number5" 7-887-105 7-886-305 7-889-005 7-862-952

Spare Parts

5C Collet Chucks for Mounting with Adapter Plates6000 RPM, 0.0004" T.I.R.• High quality forged steel body• Designed for use with all 5C collets• For turning, facing, boring, grinding and millingoperations on center lathes and grinding machines


• Their simple design, rugged construction, and fineworkmanship assures high quality and long service life

COLLET CHUCKS

BISON


• Scroll is fully hardened and ground for longer life• Pinions are hardened and ground

Standard Accessories:• 1 Chuck wrench• 1 Set of mounting bolts• 1 Hex key

5" mounting plates (adapters) A5, D3, D4, D5,Threaded and DIN are available

Fully Machined Steel daptersfor A, D, DIN and ThreadedLathe Spindles

5C ColletsPart Number: 7-168-

ChuckDiameter

5C ColletHolding Capacity

inchesRPM Wt

lbsPart

Number

5" 3/64 x 1-1/8 6000 12 7-862-0505

ChuckDiameter

TaperSize

PartNumber

5"

A-4 7-874-054A-5 7-874-055A-6 7-874-056D1-3 7-875-053D1-4 7-875-054D1-5 7-875-055D1-6 7-875-056L00 7-879-9051

1-1/2" x 8 7-876-0522-3/16" x 10 7-876-0542-1/4" x 8" 7-876-056

ChuckDiameter

Scroll1 Pc

Pinion1 Pc

FineAdjustment

Screws1 Pc

Wrench1 Pc

MountingScrews1 Pc

Part Number5" 7-887-105 7-886-105 7-897-6051 7-889-005 7-897-705

Type 3960-5C

Spare Parts

Universal 5 Pc 5C Collet StopPart Number: 7-460-210

Adjustable 5C Collet StopPart Number: 7-460-200

Super Precision 5C SET TRU Collet Chucks with Fine Adjustmentfor Mounting with Adapter Plates, 6000 RPM, 0.0004" T.I.R.• High quality forged steel body• Designed for use with all 5C collets• Can be used for turning, facing, boring, grindingand milling operations on center lathes andgrinding machines


• Four fine adjustment screws are used to set up thechuck on its mounting plate to get precision within0.0004" T.I.R. on duplicate parts

COLLET CHUCKS

COLLET

CHU

CKSBISON


16C Plain Back and SET-TRU Collet Chucks• Steel Body• T.I.R. 0.0004"• 6000 RPM

TRU-LENGTHNo Workpiece Movement

SET-TRU

ChuckDiameter Mounting 16C Collet

Holding Capacity RPM Wtlbs

PartNumber

6"Plain Back

1/16 - 1-5/8 600021.0 7-862-0601

SET-TRU 24.0 7-862-0605

Type 3965

ChuckDiameter

TaperSize

Plain BackPart

Number

SET-TRUPart

Number

6-1/4"

A-5 7-873-065 7-874-065D1-3 7-878-063 7-875-063D1-4 7-878-064 7-875-064D1-5 7-878-065 7-875-065D1-6 7-878-066 7-875-066D1-8 7-878-068 7-875-068L00 7-879-061 7-879-9061L0 7-879-062 7-879-9062

C-4 / DIN-4 7-921-064 -C-5 / DIN-5 7-921-065 -C-6 / DIN-6 - 7-920-0661-1/2" - 8 7-871-062 7-876-0622-3/16" - 10 7-922-063 7-876-0642-1/4" - 8 7-871-063 7-876-066

ChuckDiameter Mounting

Pinion1 Pc

Scroll1 Pc

FineAdjustment

Screws1 Pc

ColletWrench1 Pc

ChuckWrench1 Pc

MountingScrews1 Pc

Part Number

6"Plain Back

7-886-506 7-887-106-

7-862-860 7-889-0087-898-128

SET-TRU 7-897-6061 7-897-1095

Adapters for A, D, C, L,and Threaded Lathe Spindles

Spare Parts

COLLET CHUCKS

BISON


MTNo.

ChuckDiameter

DL H 3-Jaw

F6-Jaw

E

3-Jawd

min-max

6-Jawd

min-max

PartNumber

34" 5.51 1.57 .67 .98 .079-1.22 .059-1.22 7-913-4035" 5.60 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-913-503

44" 6.41 1.57 .67 .98 .079-1.22 .059-1.22 7-913-4045" 6.50 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-913-504

5 6" 7.68 2.05 1.30 1.42 .098-2.00 .118-2.00 7-913-605

ChuckDiameter

MTShank

3-JawChuck

6-JawChuck

MT AdapterPart Number

4" 3 7-866-8040 7-868-8040 7-914-043

ChuckDiameter

DL H E M

min-maxN

max3-JawChuck

6-JawChuck

5C AdapterPart

Number4" * 7.29 2.68 0.67 .12 - 1.30 3.66 7-866-8040 7-868-8040 7-912-304

5" 7.12 2.362 1.58 .12 - 1.97 4.92 7-866-0500 7-868-0500 7-912-305

6-1/4" 7.95 2.677 1.71 .12 - 2.52 6.3 7-866-0600 7-868-0600 7-912-306* 4" solid jaws only

Fully Machined Adapters for 3 and 6-Jaw SET-TRU Chucks

Type 8288

Type 8280

5C Adapters for Quick ClampingChucks, Fully Machined• 5C and MT Adapters are designed for use withBISON 3 and 6 Jaw Quick Clamping Lathe Chucks

• Made of high quality forged steel, hardened andprecision ground for maximum accuracy

• Wide clamping range and high accuracymakes them very useful in manyprecision drilling, turning, grinding andmilling operations

• BISON Quick Clamping Chucks giveaccuracy not available with standardand precision 5C collets

ChuckDiameter

DL H

ThruHole

Diameter

3-JawF

6-JawE

3-Jawd

min-max

6-Jawd

min-max

PartNumber

3" 5.37 1.38

.866

.51 .87 .039 - 0.91 .039 - 0.91 7-910-6034" 5.42 1.57 .67 .98 .079 - 1.22 .059 - 1.22 7-910-6045" 5.74 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-910-605

6-1/4" 5.82 2.05 1.30 1.42 .098 - 2.00 .118 - 2.00 7-910-606

Type 8287

Type 8283

MT Adapters for Quick Clamping Chucks, Fully Machined

3" and 4" Diameters: 0.001" T.I.R.5" and 6" Diameters: 0.0006" T.I.R.

Adapters and SET-TRUchucks are sold separately

MT Adapters for 4” Diameter Chucks


3-Jaw Scroll Chucks

COLLET CHUCKS

COLLET

CHU

CKSBISON


ChuckDiameter

DF E d C H h1 M G

3" 2.64 2.2047 .63 .12 1.73 .51 M6 M64" 3.2 2.7559 .79 .12 1.97 .67 M8 M85" 4.25 3.7402 1.26 .16 2.21 .79 M8 M86" 5.51 4.9213 1.65 .16 2.56 1.26 M10 M10

ChuckDiameter

DE F d C H h1 M

3" 2.4409 2.83 .98 .20 1.57 .67 1/4" - 205" 2.7500 2.13 1.02 .10 1.69 .79 5/16" - 186" 3.2500 2.75 1.65 .10 1.69 .79 3/8" - 16

Semi-Finished 5C Adapters for BISON Lathe Chucks• 5C Adapters are designed for use withself-centering or independent lathe chucks

• Made of high quality forged steel• 5C shank is hardened and precision ground formaximum accuracy

• Soft flange• Wide clamping range and high accuracy makesthem very useful in many precision drilling,turning, grinding and milling operations

• Bison Chucks and 5C Adapters give accuracy notavailable with standard and precision 5C collets

5C Lathe Chucks

ShankFlange

DiameterD

Holed L Thread Part

NumberChuck

Diameter

3 and 4-JawPart

Number

4-JawPart

Number

5C

4"

.866 4.41 1.24" x 20

7-909-304 3" and 4"7-810-0300

7-850-03007-810-04007-811-0400

5" 7-909-305 5" and 6"

7-800-0500 -7-810-0500 7-850-05007-812-0500 7-850-06007-814-0500 -

6" 7-909-306 6"7-800-0600

-7-812-06007-814-0600

Type 8289

Principal Dimensions for BISON Chucks with 5C Adapters

4-Jaw Independent Chucks

5C Soft Blank Adapters 4-Jaw Independent Chuck 3-Jaw Scroll Chucks Backand Front Mounting

Total Length: 4.41"Flange Diameter: 4" and 5"Flange Thickness: 1"Hole Diameter: .866"

7-812-

7-814-

7-811-

7-850-

MINI SCROLL CHUCKS

BISON


3-Jaw Self-Centering Scroll Chucks• Steel body• Solid reversible jaws• Special compact design allows achievementof very small turned diameters

• These chucks are suitable for EMCO,UNIMAT3, and PRAZI MD200 lathes withthreaded spindles

Standard Accessories:• 1 Set of hard solid reversible jaws• 1 Chuck wrench

Optional Accessories:• 1 Set of soft solid jaws• Drill chuck arbor, MT2 x 1/2" - 20

MT2 x 1/2"-20Drill Chuck ArborPart Number 7-052-613

ChuckDiameter

Type ofMounting

M

Wtlbs

ClampingRangesmin-max

ChuckPart Number

Spare PartsHard SolidJaws

3 Pc Set

Soft SolidJaws

3 Pc Set

Scroll1 Pc

Wrench1 Pc

Part Number

2-1/3"

M12 X 1

.98 .02 - 2.36

7-810-0212

7-893-002 7-882-214 7-887-002 7-889-002M14 X 1 7-810-02141/2" - 20 7-810-02223/4" - 16 7-810-0225

3/4" - 16* 7-810-0225S*

Type 3286

Wrench

* Threaded mount for Sherline Lathes

QUICK CLAMPING CHUCKS

BISON


MIN

IAN

DQ

UICK

CLAM

PING

SCROLL

CHU

CKS

ChuckDiameter M

3-JawRPMmax

Wtlbs

PartNumber

2.17"M12x1

6000 1.227-864-0212

M14x1 7-864-0214

2.17" (55mm) Quick Clamping Self-Centering Scroll Chucks• Low profile• Light weight• Steel body• 6000 RPM• Threaded mount• T.I.R. 0.0008" (0.02mm)

Type 3266

Clamping Ranges

D = 0.787" thru 2.953"

D = 0.787" thru 2.047"

D = 0.200" thru 1.260"


BISON


3 and 6-Jaw Quick Clamping Self-Centering Scroll Chucksfor Drill and End Mill Sharpening and for Fixtures with 5C and MT Sockets100 RPM, T.I.R. 0.00059"• BISON 3 and 6-Jaw lever operated, super accurate, low profilechucks designed to solve tool grinding problems

• Keyless and pinionless gripping system allows the reduction ofclamping and unclamping time

• 6-Jaw chucks provide uniform distortion free clamping of workpieces• Chucks can be mounted on the spindle nose of tool grinders,rotary tables, indexing fixtures, and measuring devices

• Special adapters for tool grinders as well as adapters with5C and MT shanks are available

Standard Accessories for 3-Jaw Chucks: Standard Accessories for 6-Jaw Chucks:• 1 Set of ID jaws • 1 Set of jaws• 1 Set of OD jaws • 1 Wrench• 1 Wrench

Optional Accessories:• Soft solid jaws• Hard master jaws• 5C and MT Adapters

ChuckDiameter

HoleDiameter

3-Jaw 6-JawRPMmax

Wtlbs

PartNumber

RPMmax

Wtlbs

PartNumber

3" .95 2000 2.4 7-864-0300 1600 2.8 7-869-03004" 1.26 2000 7.1 7-864-0400 1600 6.2 7-869-04005" 1.50 1500 8.8 7-864-0500 1200 8.8 7-869-0500

6-1/4" 2.05 - - - 1200 15.4 7-869-0600

Type 3266 Type 3866


BISON


MIN

IAN

DQ

UICK

CLAM

PING

SCROLL

CHU

CKS

ChuckDiameter

AB C D E F M M1 P

3-Jaw ChucksGmin

G1max

G2min

G3max K N O S

3 3.23 2.05 1.8898 1.5354 .95 - M6 1.38 .0394 2.9331 .8268 2.8150 .0591 .5118 .4331 -4 4.02 3.35 2.9528 2.4409 1.26 - M8 1.57 .0787 3.7001 .9843 3.4646 .0787 .6693 .5906 -5 5.08 3.27 2.7559 2.2047 1.50 M6 - 1.89 .0984 4.9213 1.2598 4.6063 .3150 .7874 .7874 .31

Chuck Diameters:3" and 4"


Four fine adjustmentscrews for 5" and 6"diameters only

ChuckDiameter

AB C D E F M M1 P

6-Jaw Chucks

Gmin

Gmax K N O S

3 3.23 2.05 1.8898 1.5354 .95 - M6 1.38 .0394 .9055 .0591 .8661 .4331 -4 4.02 3.35 2.9528 2.4409 1.26 - M8 1.57 .0591 1.2205 .0787 .9843 .5906 -5 5.08 3.27 2.7559 2.2047 1.50 M6 - 1.89 .0787 1.4567 .3150 1.4173 .5906 .3071

6-1/4 6.46 3.78 3.0901 2.5591 2.05 M6 - 2.05 .1181 2.0079 .3150 1.4173 .7874 .3071



Four fine adjustmentscrews for 5" and 6"diameters only

3 and 6-Jaw Quick Clamping Self-CenteringScroll Chuck Dimensions

3-Jaw Chuck Dimensions

6-Jaw Chuck Dimensions Type 3866

Type 3266


BISON


MTNo.

ChuckDiameter

DL H 3-Jaw

F6-JawE

3-Jawd

min-max

6-Jawd

min-max

PartNumber

34" 5.51 1.57 .67 .98 .079 - 1.22 .059 - 1.22 7-913-4035" 5.60 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-913-503

44" 6.41 1.57 .67 .98 .079 - 1.22 .059 - 1.22 7-913-4045" 6.50 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-913-504

5 6" 7.68 2.05 1.30 1.42 .098 -2.00 .118 - 2.00 7-913-605

Spare Parts

5C Adapters for Quick Clamping ChuckFully Machined• 5C and MT Adapters are designed for use withBISON 3 and 6-Jaw Quick Clamping Lathe Chucks

• Made of high quality forged steel, hardened andprecision ground for maximum accuracy

• Wide clamping range and high accuracy makesthem very useful in many precision drilling,turning, grinding, and milling operations

• BISON Quick Clamping Chucks give accuracy notavailable with standard and precision 5C collets

ChuckDiameter

DL H

ThruHole

Diameter

3-JawF

6-JawE

3-Jawd

min-max

6-Jawd

min-max

PartNumber

3" 5.37 1.38

.866

.51 .87 .039 - 0.91 .039 - 0.91 7-910-6034" 5.42 1.57 .67 .98 .079 - 1.22 .059 - 1.22 7-910-6045" 5.74 1.89 .79 1.42 .098 - 1.46 .079 - 1.46 7-910-605

6-1/4" 5.82 2.05 1.30 1.42 .098 - 2.00 .118 - 2.00 7-910-606

Type 8287

Type 8283

MT Adapters for Quick Clamping Chucks, Fully Machined

3" and 4" Diameters: 0.001" T.I.R.5" and 6" Diameters: 0.0006" T.I.R.


ChuckDiameter

Hard Solid Jaws Soft Solid Jaws Hard Master Jaws Scroll Wrench6-Jaw Set 3-Jaw ID Set 3-Jaw OD Set 3-Jaw Set 6-Jaw Set 3-Jaw Set 1 Pc 1 Pc

Part Number3" 7-892-603 7-881-503 7-880-503 7-882-503 - - 7-887-603 7-889-9034" 7-892-604 7-881-504 7-880-504 7-882-504 - - 7-887-604 7-889-9045" 7-892-605 7-881-505 7-880-505 7-882-505 - - 7-887-605 7-889-905

6-1/4" 7-892-606 7-881-306 7-880-306 7-882-306 7-885-606 7-885-306 7-887-606 7-889-6068" - 7-881-308 7-880-308 7-882-308 - 7-885-308 7-887-608 7-889-608

3-JAW POWER CHUCKS

POW

ERCH

UCKS

BISON


Cylinder Selection• If replacing a cylinder, please check the Draw

Tube pull force and max RPM or go to the chuckpages of the catalog to select the proper cylinder

Min Chuck Hole Diameter inchWorkpiece Diameter min-max inchWorkpiece Length min-max inch

Weight of Workpiece min-max lbsMaximum Draw Bar Pull Force lbf/kN

Maximum Gripping Force lbf/kNMaximum Machining Speed RPM

inch 5 6-1/4 8 10 12-1/2 15-3/4mm 125 160 200 250 315 400

Chuck Outside Diameter Selection• Chuck outside diameter should be selected in reference to the min-max workpiece diameter, inside or outside• See chuck clamping ranges on page 132

Type of ChuckType of Mount

PagePlain Back A2 Mount Other

3-Jaw Large Thru-Hole 149 - 1603-Jaw Self-Contained 161 - 163

5C Collet Chuck 16416C Collet Chuck 167

Chuck Type Selection• Select the proper type

of chuck in reference tothe chuck application,machining requirementsand workpiece dimensions

Lathe Spindle Nose Selection• To determine proper Spindle Type and Size (A and D) refer to page 126

Hard Top JawsSupplied with allBison Power Chuckssee page 133

OptionalSoft Top Jawssee page 133

OptionalQuick ChangeSoft Top andMaster Jawssee page 137

Spindle TypeA1 and A2

CamlockSpindle Type D1

Power Chuck and Cylinder Selection Worksheet

Chuck Working Parameter Selection

Threaded Nut and Draw Tube Selection

• To check chuck (type 2405) clamping rangesand total gripping force in comparisionwith the chuck speed refer to page 132

• It is very important to verify this data withyour customer’s machining requirements

• When selecting the chuck type and diametergo to the proper chuck section in this catalogto find all of the required technical data

• The Overall Length of the Draw Tube (size L) canbe calculated after determining the distancebetween the face of the cylinder back plate andthe face of the lathe spindle nose (size A)

• See page 138 for the draw tube length calculationfor Bison 3-jaw power chucks, Type 2405

• For more information read your Bisonchuck manual

• See Bison hydrauliccylinders on pages139, 140, and 141

Jaw Selection for 3-Jaw Chucks (type 2405)

• When replacing the chuck, the existingdraw tube can usually be used withoutany alterations

• If the draw tube nut has to bereplaced, see page 134 for ourthreaded nuts and blank nuts

• For your convenience,we also supplyspecial nuts

To ensure chuck and cylinder accuracy, fax this worksheet to your Customer Service Representative at 508-653-5110.

3-JAW POWER CHUCKS

BISON


SpindleNose F1 F2 B C

max

ThreadE1 = E2UNC-3B

A-4 3.2500 - 2.5005 +.0005 .4375 7/16 - 14A-5 4.1250 2.4374 3.2505 +.0005 .5625 7/16 - 14A-6 5.2500 3.2500 4.1880 +.0005 .6250 1/2 - 13A-8 6.7500 4.3750 5.50075 +.0005 .6875 5/8 - 11A-11 9.2500 6.5000 7.75075+.0005 .7500 3/4 - 10A-15 13.0000 9.7500 11.251 +.001 .8125 7/8 - 9A-20 18.2500 14.5000 16.251 +.001 .8750 1 - 8

BISON Chucks meet all ASA Standard B5.9-1960requirements. See our chuck catalog for spindle noseaccuracy (T.I.R.)

Selecting the chuck mounting:Choose from the types belowFor the short taper spindle nose Types A and D meas-ure the pilot diameter and length (dimensions B andC), bolt circle diameter (dimensions F1 and F2) anddiameter of the holes (dimensions E1 and E2)

In the case of A type mount check the number ofbolt circles (one for A2 mount, or two for A1mount)Chucks with an A1 mount can only be installed onan A1 spindle noseChucks with an A2 mount can be installed oneither an A1 or A2 spindle nose

Spindle Type A1 and A2 Mount

• Type A1 is exactly as shown with tappedholes in both inner and outer bolt circles

• Type A2 is as shown except without holesin the inner bolt circle

Camlock Spindle Type D1 Mount

Important: The camlock stud length is adjustable to suit the spindle camlockRefer to page 64 for a full selection of camlock back plates

SpindleNose A F B C

max E No. ofHoles

D1-3 3.622 2.7820 2.1250 +.00025 .4375 .5937 3D1-4 4.606 3.2500 2.5005 +.0005 .4375 .6562 3D1-5 5.748 4.1250 3.2505 +.0005 .5000 .8750 6D1-6 7.126 5.2500 4.1880 +.0005 .5625 1.000 6D1-8 8.858 6.7500 5.50075+.0005 .6250 1.125 6D1-11 11.732 9.2520 7.75075 +.0005 .6875 1.250 6D1-15 15.866 13.0000 11.251 +.001 .7500 1.375 6

Spindle Nose with A1, A2 and D1 Mount

3-JAW POWER CHUCKS

POW

ERCH

UCKS

BISON


Large Thru-Hole Chucks, Direct and Indirect A2 MountBISON’s new line of 3-Jaw Power Operated Lathe Chucks are designed with large thru-holesThis line is a direct replacement for Kitagawa style standard chucks

Features:• Repeatability ±0.0005"• Body and parts are manufactured of high grade

alloy steel• Mating surfaces of body, wedge and jaws are

case hardened (58HRC) and ground• Rigid design• Master jaws secured against throw-off• Direct lubrication of master jaws• Unbalance within the limits per DIN 6386• A2 mounting corresponds to the USAS B5.9-1967• Chuck and chuck jaws correspond to the ASME B5.8-2001

Standard Accessories:• Hard Top Jaws

Standard Serration: 1.5mm x 60˚• Chuck Mounting Bolts• T-Nuts with Jaw Mounting Bolts• Draw Tube Blank, T-nuts, and Wrench Soft Top Jaws Chuck Grease

Part Number 7-799-025

Chuck Diameter 5" 135mm 6" 160

mm 8" 210mm 10" 250

mm 10" 250mm 12" 315

mm 12" 315mm

15-3/4"

400mm

Chuck Part Number 7-781-0550 7-781-0650 7-781-0860 7-781-1060 7-781-1080 7-781-1260 7-781-1280 7-781-1611Spindle Nose A2-5 A2-5 A2-6 A2-6 A2-8 A2-6 A2-8 A2-11

Max Swing of Top Jaws inch mm 6.890 175 8.346 212 10.945 278 13.583 345 13.583 345 15.433 392 15.433 392 19.449 494Max Draw Bar Pull Force lbf. kN 3934 17.5 4850 22 7496 34 9480 43 9480 43 12346 56 12346 56 15961 71

Max Gripping Force lbf. kN 8093 36 12566 57 18959 86 24471 111 24471 111 31816 144 31816 144 40466 180Max Speed RPM 7000 6000 5000 4200 4200 3300 3300 2500

Moment of Inertia lbs*ft2kg*m2 0.427 0.018 1.342 0.057 3.53 0.15 7.3 0.31 7.3 0.31 17.18 0.73 17.18 0.73 51.02 2.15Weight without Top Jaws lbs kg 14.1 6.4 27.6 12.5 44.0 20.0 83.8 38.0 83.8 38.0 130.1 59 130.1 59 244.7 111

Spare Parts Part NumberMatching Hard Top Jaws 7-787-305 7-787-306 7-787-308 7-787-310 7-787-310 7-787-312 7-787-312 7-787-316Matching Soft Top Jaws 7-788-305 7-788-306 7-788-308 7-788-310 7-788-310 7-788-312 7-788-312 7-788-316

Direct and Indirect A2 Mount Chucks

• See page 129 for dimensions

Type 2405-KA

3-JAW POWER CHUCKS

BISON


Direct and Indirect A2 Mount Chucks

Direct Mount• Bolts directly to spindle

Indirect Mount• Back plate must be removed for

spindle mounting• After it's mounted, the chuck is

then attached

3-JAW POWER CHUCKS

POW

ERCH

UCKS

BISON


Chuck Diameter 5" 135mm 6-1/4" 160mm 8" 210mm 10" 250mm 10" 250mm 12-1/2" 315mm 12-1/2" 315mm 15-3/4" 400mm

Part NumberMount Type

7-781-0550DirectMount



7-781-1060Indirect Mount


7-781-1260Indirect Mount



Spindle NoseA2-5 A2-5 A2-6 A2-6 A2-8 A2-6 A2-8 A2-11

inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mmA 5.3150 135 6.6535 169 8.2677 210 10 254 10 254 12.4016 315 12.4016 315 15.748 400B 2.874 73 3.543 90 4.1732 106 4.685 119 4.685 119 4.7638 121 4.7638 121 5.827 148C 2.992 76 3.685 93.59 4.3146 109.59 4.8264 122.59 4.8264 122.59 4.9213 124.59 4.9213 124.59 5.904 149.97D 3.2505 82.563 3.2505 82.563 4.188 106.375 5.5007 139.719 5.5007 139.719 5.5007 139.719 5.5007 139.719 7.751 196.869E .6693 17 0.5906 15 0.6693 17 0.748 19 0.748 19 0.748 19 0.748 19 0.9449 24F 4.126 104.8 4.126 104.8 5.252 133.4 6.748 171.4 6.748 171.4 6.748 171.4 6.748 171.4 9.252 235

G 6 Bolts 7/16" - 14 7/16" - 14 1/2" - 13 1/2" - 13 5/8" - 11 1/2" - 13 5/8" - 11 3/4" - 10H .5315 13.5 0.4528 11.5 0.6693 17 0.7480 19 0.7480 19 0.7087 18 0.7087 18 0.9449 24J .4724 12 0.7874 20 1.1811 30 1.7717 45 1.7717 45 1.9685 50 1.9685 50 2.3622 60K 1.7717 45 2.3622 60 2.5984 66 3.7008 94 3.7008 94 4.252 108 4.252 108 5.512 140

L max (mm) M40 x 1.5 M55 x 2 M60 x 2 M85 x 2 M85 x 2 M100 x 2 M100 x 2 M130 x 2.5Wedge Stroke M .3937 10 0.4724 12 0.6299 16 0.748 19 0.748 19 0.9055 23 0.9055 23 0.9055 23

O .7874 20 0.748 19 0.8071 20.5 0.9843 25 0.9843 25 1.1023 28 1.1023 28 1.5354 39Thru-Hole P 1.3386 34 1.7717 45 2.0472 52 2.9528 75 2.9528 75 3.5827 91 3.5827 91 4.724 120

R 2.205 56 2.756 70 3.622 92 4.6063 117 4.6063 117 5.2756 134 5.2756 134 6.457 164S 0.0591 1.5 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.0197 0.5T 0.0787 2 0.0949 2.41 0.1343 3.41 0.1343 3.41 0.1343 3.41 0.1343 3.41 0.1343 3.41 0.2153 5.47

U min 0.2953 7.5 0.5906 15 0.6496 16.5 0.7402 18.8 0.7402 18.8 0.4331 11 0.4331 11 -0.4724 -12U max 0.689 17.5 1.063 27 1.2795 32.5 1.4882 37.8 1.4882 37.8 1.3386 34 1.3386 34 0.4331 11Z min - - 0.591 15 0.650 16.5 0.937 23.8 0.937 23.8 0.740 18.8 0.740 18.8 - -Z max - - 1.063 27 1.280 32.5 1.685 42.8 1.685 42.8 1.488 37.8 1.488 37.8 - -

Jaw Travel a 0.1063 2.7 0.1083 2.75 0.1457 3.7 0.1732 4.4 0.1732 4.4 0.2087 5.3 0.2087 5.3 0.2087 5.3b min 0.9449 24 1.5551 29.35 1.3858 35.2 1.8346 46.6 1.8346 46.6 2.2047 56 2.2047 56 3.0394 77.2b max 1.0512 26.7 1.2638 32.1 1.5315 38.9 2.0079 51 2.0079 51 2.4134 61.3 2.4134 61.3 3.2480 82.5c min 0.2756 7 0.3543 9 0.4134 10.5 0.4016 10.2 0.4016 10.2 0.6181 15.7 0.6181 15.7 0.4921 12.5c max 0.7874 20 1.0039 25.5 1.2992 33 0.1248 38.17 0.1248 38.17 1.9882 50.5 1.9882 50.5 2.0276 51.5d (mm) M8 M10 M12 M12 M12 M16 M16 M20

e 0.5512 14 0.7087 18 0.9843 25 1.1811 30 1.1811 30 1.2598 30 1.2598 30 1.6929 43f 1.5945 40.5 2.0669 52.5 2.5984 66 2.9921 76 2.9921 76 2.9921 76 2.9921 76 4.5276 115

g (H7) 0.3937 10 0.4724 12 0.5512 14 0.6299 16 0.6299 16 0.6299 16 0.6299 16 1.0039 25.5h 0.9843 25 1.4961 38 1.575 40 1.7717 45 1.7717 45 1.7717 45 1.7717 45 2.3622 60

Direct and Indirect A2 Mount Chucks*

* See adapter selection for more mounting options

Chuck Diameter 15-3/4"A2-11 Direct Mount

3-JAW POWER CHUCKS

BISON


Large Thru-Hole Chucks, Plain Back

Chuck Diameter 5"135mm

6 -1/4"

160mm

8"210mm

10"250mm

12-1/2"

315mm

12-1/2"

315mm

15-3/4"

400mm

Chuck Part Number 7-781-0500 7-781-0600 7-781-0800 7-781-1000 7-781-1260 7-781-1200 7-781-1600Max Swing of Top Jaws inch mm 6.890 175 8.346 212 10.945 278 13.583 345 15.433 392 15.433 392 19.449 494Max Draw Bar Pull Force lbf. kN 3934 17.5 4850 22 7496 34 9480 43 12346 56 12346 56 15961 71

Max Gripping Force lbf. kN 8093 36 12566 57 18959 86 24471 111 31816 144 31816 144 40466 180Max Speed RPM 7000 6000 5000 4200 3300 3300 2500

Moment of Inertia lbs*ft2 kg*m2 0.427 0.018 1.342 0.057 3.53 0.15 7.3 0.31 17.18 0.73 17.18 0.73 51.02 2.15Weight without Top Jaws lbs kg 11.9 5.4 24.3 11 41.9 19 75 34 121.3 55 130.1 59 244.7 111

Matching Hard Top Jaws 7-787-305 7-787-306 7-787-308 7-787-310 7-787-312 7-787-312 7-787-316Matching Soft Top Jaws 7-788-305 7-788-306 7-788-308 7-788-310 7-788-312 7-788-312 7-788-316

Adapter Selection for Plain Back Chucks

TaperSize

Chuck Diameter5" 6-1/4" 8" 10" 12-1/2" 15-3/4"

Part NumberA2-5 7-789-5055 7-789-5065 - - - -A2-6 - 7-789-5066 7-789-5086 7-789-5126 7-789-5126 -A2-8 - - 7-789-5088 7-789-5128 7-789-5128 -A2-11 - - - - - 7-789-51611

• See page 135 for adapter dimensions• See page 133 for spare parts

See following page for dimensions

3-JAW POWER CHUCKS

POW

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UCKS

BISON


JL

B

c

P

KA

f

C T

b

S

D U O

E

d

H

G

a

e

M

Chuck Diameter 5" 135mm 6-1/4" 160 mm 8" 210 mm 10" 250 mm 12-1/2" 315 mm 15-3/4" 400mmPart Number 7-781-0500 7-781-0600 7-781-0800 7-781-1000 7-781-1200 7-781-1600

Units inch mm inch mm inch mm inch mm inch mm inch mmA 5.3150 135 6.6535 169 8.2677 210 10 254 12.4016 315 15.7480 400B 2.3622 60 3.189 81 3.74 95 4.1732 106 4.2519 108 5.1181 130C 2.3228 59 3.0941 78.59 3.6453 92.59 4.0783 103.59 4.1571 105.59 4.959 125.97

D H6 4.7244 120 5.5118 140 6.6929 170 8.6614 220 8.6614 220 11.8110 300E .1575 4 0.2362 6 0.2362 6 0.2362 6 0.2362 6 0.2362 6F 4.126 104.8 4.126 104.8 5.252 133.4 6.748 171.4 6.748 171.4 9.2520 235

G 6 Bolts (mm) M10 M10 M12 M16 M16 M20H 0.6102 15.5 0.4528 11.5 0.5512 14 0.7087 18 0.8661 22 1.1024 28J 0.4724 12 0.7874 20 1.1811 30 1.7717 45 1.9685 50 2.3622 60K 1.7717 45 2.3622 60 2.5984 66 3.7008 94 4.252 108 5.5118 140

L max (mm) M40 x 1.5 M55 x 2 M60 x 2 M85 x 2 M100 x 2 M130 x 2.5Max Wedge Stroke M .3937 10 0.4724 12 0.6299 16 0.748 19 0.9055 23 0.9055 23

O 0.7874 20 0.7480 19 0.8071 20.5 0.9843 25 1.1023 28 1.535 39Thru-Hole P 1.3386 34 1.7717 45 2.0472 52 2.9528 75 3.5827 91 4.724 120

R 2.2047 56 2.756 70 3.622 92 4.6063 117 5.2756 134 6.4567 164S 0.0591 1.5 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.1024 2.6 0.0197 0.5T 0.0787 2 0.0949 2.41 0.1343 3.41 0.1343 3.41 0.1343 3.41 0.2154 5.47

U min -0.3740 -9.5 0 0 -0.0197 -0.5 -0.0079 -0.2 -0.315 -8 -0.4724 -12U max 0.0197 0.5 0.4724 12 0.6102 15.5 0.7402 18.8 0.5906 15 0.4331 11

Jaw Travel a 0.1063 2.7 0.1083 2.75 0.1457 3.7 0.1732 4.4 0.2087 5.3 0.2087 5.3b min 0.9449 24 1.1535 29.3 1.3858 35.2 1.8346 46.6 2.2047 56 3.0394 77.2b max 1.0512 26.7 1.2638 32.1 1.5315 38.9 2.0079 51 2.4134 61.3 3.2480 82.5c min 0.2756 7 0.3543 9 0.4134 10.5 0.4016 10.2 0.6181 15.7 0.4921 12.5c max 0.7874. 20 1.0039 25.5 1.2992 33 1.5236 38.7 1.9961 50.7 2.0276 51.5

Jaw Bolts d (mm) M8 M10 M12 M12 M16 M20e 0.5512 14 0.7087 18 0.9843 25 1.1811 30 1.2598 32 1.6929 43f 1.5945 40.5 2.0669 52.5 2.5984 66 2.9921 76 3.7598 95.5 4.5276 115

T-slot g (H7) 0.3937 10 0.4724 12 0.5512 14 0.6299 16 0.8268 21 1.004 25.5h .09843 25 1.4961 38 1.575 40 1.7717 45 2.0472 52 2.3622 60

Plain Back Chucks

3-JAW POWER CHUCKS

BISON


15-3/4” Chuck

Gripping Force Loss was determined on a chuck equipped with BISON Hard Top Jaws

ChuckDiameter d1 d2 d3 d4 d5 d6 d7

135 mm 8 - 66 50 - 104 81 - 136 116 - 171 10 - 66 46 - 101 78 - 1355" .3150 - 2.5984 1.9685 - 4.0945 3.1890 - 5.3543 4.5670 - 6.7323 .3937 - 2.5984 1.8110 - 3.9764 3.0709 - 5.3150

160 mm 15 - 88 65 - 136 104 - 176 145 - 218 17 - 90 59 - 133 99 - 1726-1/4" .5906 - 3.4646 2.5591 - 5.3543 4.0945 - 6.9291 5.7078 - 8.5827 .6693 - 3.5433 2.3228 - 5.2362 3.8976 - 6.7717210 mm 16 - 111 80 - 172 128 - 222 178 - 272 16 - 111 64 - 161 116 - 211

8" .6299 - 4.3700 1.1496 - 6.7717 5.0394 - 8.7402 7.0079 - 10.7087 .6299 - 4.3701 2.5197 - 6.3386 4.5669 - 8.3071250 mm 16 - 134 98 - 213 160 - 276 225 - 341 16 - 134 80 - 198 144 - 262

10" .6229 - 5.2756 3.8583 - 8.3858 6.2992 - 10.8661 8.8583 - 13.4252 .6229 - 5.2756 3.1496 - 7.7953 5.6693 - 10.3150315 mm 47 - 177 125 - 254 185 - 315 246 - 389 47 - 177 117 - 247 177 - 30712-1/2" 1.8504 - 6.9685 4.9213 - 10.0000 7.2835 - 12.4016 10.0394 - 15.1575 1.8504 - 6.9685 4.6063 - 9.7244 6.9685 - 12.0866400 mm 55 - 210 150 - 300 235 - 390 370 - 480 55 - 210 150 - 300 235 - 39015-3/4" 2.1654 - 8.2677 5.9055 - 11.8110 9.2520 - 15.3543 14.5669 - 18.8976 2.1654 - 8.2677 5.9055 - 11.8110 9.2520 - 15.3543

Clamping Ranges

Total Gripping Force and Speed

Red MaximumGreen Minimum

New Sizes

5” Chuck

6-1/4” Chuck 8” Chuck 10” Chuck 12-1/2” Chuck

3-JAW POWER CHUCKS

POW

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BISON


Chuck Diameter 5" 6-1/4" 8" 10" 12-1/2" 15-3/4"Part Number 7-787-305 7-787-306 7-787-308 7-787-310 7-787-312 7-787-316

A 0.9055 1.1024 1.3780 1.5748 1.7717 1.9685B 2.0866 2.5197 3.1102 4.0157 4.0157 5.5118C 1.4173 1.6929 1.9291 2.1260 2.2835 2.9528

D H7 0.3937 0.4724 0.5512 0.6299 0.8268 1.0039F 0.5118 0.4921 0.5709 0.7480 0.8268 1.0623G 0.5512 0.7874 0.9843 1.1811 1.1811 1.6929H 1.5 X 60 (Serration)

Bolt Size M8 M10 M12 M12 M16 M20Wt lbs 0.32 0.68 1.24 2.25 2.38 4.76

Hard Top Jaws, Serration 1.5mm x 60• Sold in sets

Soft Top Jaws, Serration 1.5mm x 60• Sold in sets

Spare Parts for Chuck Reconditioning

Chuck Diameter 5" 6-1/4" 8" 10" 12-1/2"Part Number 7-788-305 7-788-306 7-788-308 7-788-310 7-788-312

A 0.9055 1.0236 1.3780 1.5748 1.9685B 2.1260 2.2598 3.7402 4.3307 4.3701C 0.9843 1.1024 1.4961 1.6535 1.9685

D H7 0.3937 0.4724 0.5512 0.6299 0.8268F 0.4724 0.4724 0.9449 1.1811 0.8268G 0.5512 0.7874 0.9843 1.1811 1.1811H 1.5 X 60 (Serration)

Bolt Size M8 M10 M12 M12 M16Wt lbs 0.39 0.58 1.71 2.63 3.86

Chuck Diameter6-1/4" 8" 10" 12-1/2"

Part NumberBlank Master Jaw, 3 piece set 7-789-606 7-789-608 7-789-610 7-789-612Blank Wedge Plunger, 1 piece 7-789-706 7-789-708 7-789-710 7-789-712

Blank Master Jaws Blank Wedge Plunger (front and back view)Rectangular Jaws6-1/4" thru 12-1/2"

Sizes Only

Note: All blank spare parts are oversized and will require final grinding

3-JAW POWER CHUCKS

BISON


Chuck Diameter 5" 6-1/4" 8" 10" 12-1/2" 15-3/4"Jaw Mounting Bolts

Bolt Size M8x1.25-16 M10x1.5-20 M12x1.75-25 M12x1.75-30 - M16x2-30 - M20x2.5x40Part Number 7-789-9055 7-789-9065 7-789-9085 7-789-9105 - 7-789-9125 - 7-789-9210

Chuck Mounting Bolts, Plain BackBolt Size M10x1.5-60 M10x1.5-75 M12x1.75-90 M12x1.75-100 - M16x2-105 - M20x2.5x130

Part Number 7-897-1080 7-897-1084 7-897-1114 7-897-1272 - 7-897-1275 - 7-897-1685Chuck Mounting Bolts, A2 Mount

Mount A2-5 A2-5 A2-6 A2-6 A2-8 A2-6 A2-8 A2-11Bolt Size M10x1.5-75 M10x1.5-85 M12x1.75-110 M16x2-100 M16x2-120 M16x2-120 M16x2-120 M20x2.5-150

Part Number 7-897-1083 7-897-1085 7-897-1115 7-897-1272 7-897-1273 7-897-1275 7-897-1273 7-897-1679

Jaw and Chuck Mounting Bolts

Draw Tube Nuts

T-nuts and Bolts

ChuckDiameter

ThreadL

HoleDiameter

J

PartNumber L1 and L2

5" BLANK 12mm 7-789-0501 1.40"

6-1/4"

M42X1.5 - 7-789-0642

0.276"M42X2.0 - 7-789-0644M50x1.5 - 7-789-0650M55X1.5 - 7-789-0652M55X2.0 - 7-789-0654BLANK 20mm 7-789-0601 1.063"

8"

M50X1.5 - 7-789-0852

0.417"

M50X2.0 - 7-789-0854M75x2.0 - 7-789-10755M55X1.5 - 7-789-0862M55X2.0 - 7-789-0864M60X1.5 - 7-789-0872M60X2.0 - 7-789-0874BLANK 30mm 7-789-0801 1.205"

10"

M60X2.0 - 7-789-1074

0.512"

M74x1.5 - 7-789-1075M76x1.5 - 7-789-1076M80x2 - 7-789-1080

M85X1.5 - 7-789-1082M85X2.0 - 7-789-1084BLANK 45mm 7-789-1001 1.299"

12-1/2"M100X1.5 - 7-789-1292

0.650"M100X2.0 - 7-789-1294BLANK 50mm 7-789-1201 1.437"

Chuck Diameter 5" 6-1/4" 8" 10" 12-1/2" 15-3/4"T-nut Part Number 7-789-905 7-789-906 7-789-908 7-789-910 7-789-912 7-789-916

A 0.0591 0.6980 0.8071 0.8858 1.1417 1.3386B 1.0236 1.4173 1.8307 2.0079 2.1850 3.1496C 0.0591 0.7283 0.8071 0.8465 1.0630 1.2205F 0.5511 0.7874 0.9843 1.1811 1.1811 1.6929G 0.2165 0.2953 0.3346 0.3346 0.4134 0.4724

H (h6) 0.3937 0.4724 0.5512 0.6299 0.8268 1.0039Bolt Size M8 x M10X1.5 M12X1.75 M12X1.75 M16X2 M20x2.5Wt lbs 0.049 0.086 0.201 0.267 0.461 0.838

Bolt Part Number 7-789-9055 7-789-9065 7-789-9085 7-789-9105 7-789-9125 7-789-9165

T-nuts and Bolts sold separately

Threaded Nut Blank Nut

L

• 1 T-Nut per Jaw• Solid Nuts andTwo-Piece Nuts

3-JAW POWER CHUCKS

POW

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BISON


Adapter Type 8213-135/5Z 8213-160/5K 8213-160/6K 8213-200/6K 8213-200/8K 8213-250-315/K 8213-250-15/6K 8213-400/11K

Part Number 7-789-5055 7-789-5065 7-789-5066 7-789-5086 7-789-5088 7-789-5128 7-789-5126 7-789-51611Chuck Diameter 5” 6-1/4” 6-1/4” 8” 8” 10” and 12-1/2” 10” and 12-1/2” 15-3/4”

A2 MountDirect Mount Direct Mount Indirect Mount Direct Mount Indirect Mount Direct Mount Indirect Mount Direct Mount

A2-5 A2-5 A2-6 A2-6 A2-8 A2-8 A2-6 A2-11B 5.12” - - - - - - -BF 4.724” 5.512” 6.496” 6.693” 8.268” 8.661” 8.661” 11.811”BA 3.251” 3.251” 4.188” 4.188” 5.501” 5.501” 4.188” 7.751”BB 2.835” 3.130” - 4.055” - 5.358” 4.055” 7.591”C 4.126” 4.126” 5.236” 5.252” 6.748” 6.748” 5.252” 9.252”C1 - - 4.126” - 5.252” - 6.748” -C2 4.094” 4.567” - 5.906” - 7.480” 7.480” 10.236”D 3 x M10 6 x M10 6 x M12 6 x M12 6 x M16 6 x M16 6 x M12 6 x M20D1 3 x M6 3 x M6 6 x M10 6 x M6 6 x M12 6 x M8 6 x M8 3 x M10D2 - - - - - - 3 x M8 -D3 - - 5.5118” - 6.693” - - -E - - 2.992” - 4.055” - 4.331” -L 0.5315” .4528” - .6693” - .7087” .7480” 0.9449”L1 0.2756” - - - - - - -L2 0.1772” - - - - - - -T 0.6693” .5906” 1.378” .6693” 1.575” .7480” .9646” 0.9449”T1 - - 1.0236” - 1.142” - - -T2 - - .2559” - .2559” - - -T3 - - .6299” - .7087” - - -X - - .7874” - .9843” - .3740” -

Wt lbs 2.43 3.31 2.90 5.07 4.60 9.70 11.02 21.16

Type A Steel Adapter Plates for Direct and Indirect Mount

View from Chuck Side View from Spindle Side

Direct Mount Adapter Plate Indirect Mount Adapter Plate

3-JAW POWER CHUCKS

BISON


Spare Parts5

17

3

4

8

18

11

13

22

10 24

21

1 14 2312 6 7 2 2526 20

28 27

19

15

9

16

No.Chuck Diameter 5" 6-1/4" 8" 10" 12-1/2" 15-3/4"

Description Part Number1 Body N/A N/A N/A N/A N/A N/A2 Wedge Plunger - 7-789-706 7-789-708 7-789-710 7-789-712 -3 Master Jaw - 7-789-606 7-789-608 7-789-610 7-789-612 -4 Hard Top Jaw 7-787-305 7-787-306 7-787-308 7-787-310 7-787-312 7-787-3165 T-nuts 7-787-905 7-789-906 7-789-908 7-789-910 7-789-912 7-787-9166 Plunger Ring - - - - - -7 Draw Tube Nuts See page 1348 Cover - - -9 Spring - - - - - -10 Nut Wrench 7-789-205 7-789-206 7-789-208 7-789-210 7-789-212 7-789-21611 Screw (mm) M4X0.7X8 M5X0.8X8 M6X1.0X14 M8X1.25X16 M8X1.25X16 M8X1.25X1412 Screw (mm) M6X1X16 M6X1.0X16 M8X1.25X20 M8X1.25X25 M8X1.25X20 M10X1.5X2513 Jaw Screws (mm) M8X1.25X16 M10X1.5X20 M12X1.75X25 M12X1.75X30 M16X2X30 M20X2.5X4014 Chuck Mounting Bolts (mm) M10X1.5X75 M10X1.5X90 M12X1.75X110 M16X2X120 M16X2X120 M20X2.5X15015 Screw (mm) M6X1.0X816 Steel Ball - - - - - -17 Grease Nipple - - - - - -18 O-ring - - - - - -19 Hex Key (mm) 6-999-58320 Hex Key (mm) - 6-999-585 6-999-58621 Hex Key (mm) - 6-999-584 6-999-585 6-999-58622 Hex Key (mm) - 6-999-588 6-999-590 6-999-594 -23 Hex Key (mm) - 6-999-588 6-999-590 6-999-59424 Hex Key (mm) - 6-999-588 6-999-590 6-999-594 6-999-597 -25 Eye Bolt (mm) N/A N/A N/A - - -26 Adapter Plate

See the Adapter Plate Chart on page 13527 Adapter Screw28 Hex Key (mm) 6-999-585 6-999-586

3-JAW POWER CHUCKS

POW

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UCKS

BISON


Chuck Diameter 8" 10" 12"Standard Mild Steel Insert

Part Number 7-786-408 7-786-410X 1.188 1.438W 1.500 2.000Z 2.375 2.625

Extra Reach Toward CenterPart Number 7-786-508 7-786-510

X 2.000 2.000W 1.500 1.750Z 2.375 2.625

Step 4: Tighten Insert

C Style Quick Change Master JawsFeatures:• The ability to position the Master Jaw ONE TIME• Make all of the part size adaptations by simply changing the Insert

Chuck Diameter 8" 10" 12"Jaw Part Number 7-786-308 7-786-310 7-786-312

F .985 1.181 1.181G .551 .630 .826W 1.500 1.750 1.750H 2.500 2.750 2.750L 2.500 3.000 3.000

Bolt Size M12 M12 M16Insert Part Number 7-786-408 7-786-410 7-786-410Insert Part Number 7-786-508 7-786-510 7-786-510

Jaw InsertsFeatures:• Mild steel• Easy to bore• Standard and extra reach

ApplicationStep 1: Release Insert

Step 2: Remove Insert

Fast releasing insert screw with 5/8" Hex SocketUse with hex wrench 6-998-159

Master Jaw Insert

Step 3: Replace Insert

3-JAW POWER CHUCKS

BISON


Draw Tube Dimension Selections and Assembly

Draw Tube NutDimensions areon page 134

Chuck Diameter Cylinder Type a b c d ( f7) e min f max L6-1/4" 1305-135/46 M 55X2 1.1811 .9843 2.0669 .1969 M 55X2 A + .74808" 1305-150/52 M 60X1.5 1.1811 .9843 2.2441 .1575 M 60X2 A + .944910" 1305-170/67 M 85X2 1.3780 1.1811 3.2283 .1969 M 85X2 A + 1.0236

12-1/2" 1305-210/86 M 102X2 1.3780 1.3780 3.8976 .1772 M 102X2 A + .9843

• The "L" dimension is calculated after determiningthe distance between the cylinder back plate andchuck back plate, see the "A" dimension

• The chart above shows "L" calculation fora Bison 2405 Chuck and a 1305 CylinderFor different cylinders the "L" dimensionwill be different

HYDRAULIC CYLINDERS

POW

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BISON


Maximum Operating Pressure is 4 MPa

Chuck Diameter 5"Part Number 7-796-125C inch 4.921C1 inch 3.150C2 inch 4.134D - 4 X M12E inch 6.260F - M24G inch 1.378H inch 5.118H1 inch 0.906

H2 min inch 9.685H2 max inch 10.945L min inch 1.299L max inch 2.559

S1 inch 2.598W inch 2.559

Piston Stroke inch 1.260Draw Bar Pull Force lbf. 8992.36

Max Speed RPM 6300Moment of Inertia lbs x ft2 0.6646

Oil leakage gal./min 0.553Weight lbs 30.8647

High Speed Hydraulic Cylinders with Closed Center• Compact and lightweight design• Aluminum alloy body

Type 1304-G

Application:

HYDRAULIC CYLINDERS

BISON


High Speed Hydraulic Cylinders with Large Thru-Hole

Application:

HYDRAULIC CYLINDERS

POW

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UCKS

BISON


Chuck Diameter 6-1/4" 135/46 8" 150/52 10" 170/67 12-1/2" 210/86

Part Number 7-797-135 7-797-150 7-797-170 7-797-210A1 inch/mm 5.3150 135 5.9055 150 6.6929 170 8.2677 210

B1 H6 inch/mm 3.5433 90 4.3307 110 4.3307 110 6.4961 165B2 H6 inch/mm 5.1181 130 5.9055 150 6.2992 160 8.2677 210C1 inch/mm 4.3307 110 5.1969 132 5.1969 132 7.4803 190C2 inch/mm 6.1024 155 6.4961 165 7.4803 190 8.9370 227C3 inch/mm 5.9842 152 6.4961 165 7.4803 190 8.9370 227D1 inch/mm 3 x M12 3 x M12 3 x M12 3 x M12D2 inch/mm 6 x M10 6 x M10 6 x M10 6 x M10D3 inch/mm 6 x 9 6 x 9 6 x 9 6 x 9E inch/mm 6.8504 174 7.4016 188 8.4252 214 9.9213 252E1 inch/mm 6.7323 171 7.2047 183 8.2283 209 9.7244 247F1 inch/mm M55 x 2 M55 x 2 M55 x 2 M55 x 2F2 inch/mm M50 x 1.5 M50 x 1.5 M50 x 1.5 M50 x 1.5G inch/mm 2.4803 63 2.7559 70 3.3466 85 4.1339 105H inch/mm 8.2874 210.5 8.7205 221.5 8.9173 226.5 9.1535 232.5I inch/mm 0.1969 5 0.1969 5 0.1969 5 0.1969 5K inch/mm 1.8307 46.5 2.0669 52.5 2.6575 67.5 3.4055 86.5

K2 H9 inch/mm 1.8504 47 2.0669 52.5 2.7165 69 3.4252 87K1 H9 inch/mm 2.1 52.5 2.2 57 2.9 72.5 3.6 92

L inch/mm 3.9370 100 4.1339 105 4.3307 110 4.3307 110L3 inch/mm 0.5906 15 0.7874 20 0.4724 12 0.6693 17O inch/mm G 3/8" G 3/8" G 3/8" G 3/8"P1 inch/mm 0.7480 19 0.7480 19 0.7480 19 0.7480 19Q1 inch/mm 1.1811 30 1.1811 30 1.1811 30 1.1811 30Q2 inch/mm 2.0472 52 2.0472 52 2.0472 52 2.0472 52R inch/mm 1.2598 32 1.2598 32 1.2598 32 1.2598 32T1 inch/mm 4.3898 111.5 4.5669 116 4.9016 124.5 5.3740 136.5T2 inch/mm 3.5433 90 3.7402 95 4.1339 105 4.5276 115T3 inch/mm 4.1339 105 4.3307 110 4.6457 118 5.1181 130

U (Stroke) inch/mm 0.9843 25 1.1811 30 1.3780 35 1.3780 35W1 inch/mm 0.9843 25 0.9843 25 0.9843 25 1.1811 30W2 inch/mm 0.9843 25 1.1024 28 1.1024 28 1.1811 30

Z max inch/mm 1.1024 28 1.1024 28 1.3386 34 1.1024 39a inch/mm 6.1024 155 6.4173 163 6.6142 168 6.4173 171b inch/mm 9.8228 249.5 10.3543 263 10.6496 270.5 10.3543 276.5c inch/mm 0.9055 23 0.9055 23 0.9055 23 0.9055 23e inch/mm 5.5118 140 5.9055 150 6.5354 166 7.4803 190f inch/mm 3.0709 78 3.2677 83 3.4646 88 3.4646 88

Piston AreaA inch2/cm2 18.3675 118.5 23.0176 148.5 28.3341 182.8 42.6871 275.4

B inch2/cm2 17.3445 111.9 21.4210 138.2 26.3811 170.2 40.2536 259.7

Max Pressure (tonf/in2 : Mpa) 2.9x105 4 2.9x105 4 2.9x105 4 2.9x105 4

Max Draw Bar Push Force lbf/daN 9,375 4,170 11,735 5,220 13,264 5,900 20,548 9,140Max Draw Bar Pull Force lbf/daN 8,857 3,940 10,926 4,860 13,713 6,100 20,907 9,300

Oil Leakage (p=3 Mpa, 50 C)gal/min:dm3/min 0.790 3.0 0.947 3.6 1.053 4.0 1.316 5.0

Max Speed RPM 7,100 6,300 5,500 4,500

Moment of Inertia lbsxft2/kgxm2 1.1865 0.05 1.6611 0.07 2.8476 0.12 5.9325 0.25

Power Absorbtion (at max speed): BTU/min : KW 68.26 1.2 79.64 1.4 96.70 1.7 125.14 2.2

High Speed Hydraulic Cylinders with Thru-HoleType 1305-M

POWER COLLET CHUCKS

BISON


5C Plain Back Collet Chucks• Forged steel body• T.I.R. 0.0004"• 8,000 RPM• Includes wrench

Bison’s completeselection of AdapterPlates can be found onpages 62 - 66

Spare PartsCollet Pin 7-775-9011

Mounting Bolts: M10 x 35mm 7-897-1075

Wrench Included• Part Number 7-862-861

ChuckDiameter Mounting Gripping Range Max Draw Bar

Pull Force (lbf)Max Draw Bar

StrokeWtlbs

ChuckPart Number

5" Plain Back 3/64 - 1-1/8" 3000 0.1575 5.50 7-775-0521Backplates and Cylinders

5"A2-5

Adapter Plate2.43 7-789-5065*

A2-6 - 7-789-5066*Hydraulic Cylinder with 46mm thru-hole, 7100 RPM, 1" piston stroke - 7-797-135AHydraulic Cylinder without thru-hole, 7000 RPM, 1.260" piston stroke - 7-796-100A

Type 2904

* For back plate dimensions, see page 135

POWER COLLET CHUCKS

POW

ERCH

UCKS

BISON


ChuckDiameter

MaxDraw BarPull Force

(lbf)

MaxDraw BarStroke

Wtlbs Part Number

5" 3000 0.1575 5.50 7-775-0551Matching Cylinders

Hydraulic Cylinder with 46mm thru-hole, 7100 RPM, 1" piston stroke 7-797-135A

Wrench Included• Part Number 7-862-861

Nut 2-3/16" x 10• Sold separately• Part Number 7-862-865

A2-5 Direct Mount Collet Chucks• Forged steel body• Threaded Nose 2-3/16"• T.I.R. 0.0004"• 8,000 RPM• Includes wrench

Spare PartsCollet Pin: 10-32 UNEF-2B 7-775-9010

Mounting Bolts: 7/16-14 x 1-1/2" 7-898-210

Type 2916

POWER COLLET CHUCKS

BISON


Description Part Number1/16" Steel 7-168-404

5C Precision Round Collets• Concentricity guaranteed to 0.0004"

Size (inch) Part Number Size (inch) Part Number Size (inch) Part Number3/64 7-168-002 27/64 7-168-050 51/64 7-168-0981/16 1-168-004 7/16 7-168-052 13/16 7-168-1005/64 1-168-006 29/64 7-168-054 53/64 7-168-1023/32 7-168-008 15/32 7-168-056 27/32 7-168-1047/64 7-168-010 31/64 7-168-058 55/64 7-168-1061/8 7-168-012 1/2 7-168-060 7/8 7-168-1089/64 7-168-014 33/64 7-168-062 57/64 7-168-1105/32 7-168-016 17/32 7-168-064 29/32 7-168-11211/64 7-168-018 35/64 7-168-066 59/64 7-168-1143/16 7-168-020 9/16 7-168-068 15/16 7-168-11613/64 7-168-022 37/64 7-168-070 61/64 7-168-1187/32 7-168-024 19/32 7-168-072 31/32 7-168-12015/64 7-168-026 39/64 7-168-074 63/64 7-168-1221/4 7-168-028 5/8 7-168-076 1 7-168-124

17/64 7-168-030 41/64 7-168-078 1-1/64 7-168-1269/32 7-168-032 21/32 7-168-080 1-1/32 7-168-12819/64 7-168-034 43/64 7-168-082 1-3/64 7-168-1305/16 7-168-036 11/16 7-168-084 1-1/16 7-168-13221/64 7-168-038 45/64 7-168-086 1-5/64 7-168-13411/32 7-168-040 23/32 7-168-088 1-3/32 7-168-13623/64 7-168-042 47/64 7-168-090 1-7/64 7-168-1383/8 7-168-044 3/4 7-168-092 1-1/8 7-168-140

25/64 7-168-046 49/64 7-168-094 - -13/32 7-168-048 25/32 7-168-096 - -

Size Part Number Size Part Number3 mm 7-168-603 17 mm 7-168-6174 mm 7-168-604 18 mm 7-168-6185 mm 7-168-605 19 mm 7-168-6196 mm 7-168-606 20 mm 7-168-6207 mm 7-168-607 21 mm 7-168-6218 mm 7-168-608 22 mm 7-168-6229 mm 7-168-609 23 mm 7-168-62310 mm 7-168-610 24 mm 7-168-62411 mm 7-168-611 25 mm 7-168-62512 mm 7-168-612 26 mm 7-168-62613 mm 7-168-613 24 Piece

Collet Set3 - 26 mmby 1 mm

7-168-67414 mm 7-168-61415 mm 7-168-61516 mm 7-168-616

English Metric

Sets

Universal 5 Piece5C Collet StopPart Number 7-460-210

Adjustable 5C Collet StopPart Number 7-460-200

EmergencyCollets

Collet Sets Part Number18 Piece 1/16" - 1-1/8" by 16ths 7-168-16835 Piece 1/16" - 1-1/8" by 32nds 7-168-18569 Piece 1/16" - 1-1/8" by 64ths 7-168-19024 Piece 3 mm - 26 mm by 1 mm 7-168-674

POWER COLLET CHUCKS

POW

ERCH

UCKS

BISON


16C Collet Power Chucks• Forged steel body• T.I.R. 0.0004"• 6000 RPM• Includes wrench

Notes: * Chuck Part Number 7-775-0630 uses standard back plates, see pages 62 - 67** Chuck Part Number 7-775-0631 has the same mounting dimensions as 7-781-0600, see page 131***See page 134 for back plate dimensions

ChuckDiameter Mounting Mounting

Bolt PatternGrippingRange

Max Draw BarPull Force (lbf)

Max DrawBar Stroke

Wtlbs

ChuckPart

Number

WrenchPart

Number5" Plain Back, Type 2974 4.252"

0.0625 - 1.625 5290 0.157"9 7-775-0630* 7-862-860

6-1/4" Plain Back, Type 2904 5.5118" 12 7-775-0631**

7-775-0630 7-775-0631

ChuckDiameter Mounting*** Adapter Plate

for 7-775-0631Wtlbs

AdapterPart No

6-1/4"A2-5

3.317-789-5065

A2-6 7-789-5066

POWER COLLET CHUCKS

BISON


16C to 5C Adapters• Steel body• Designed to use with power and manual 16C collet chucks• Interchangeable with all 5C collets

Description Part NumberSteel Adapter 7-164-890

16C Individual Collets

Size(inch)

PartNumber

Size(inch)

PartNumber

Size(inch)

PartNumber

Size(inch)

PartNumber

Size(inch)

PartNumber

5/64 7-164-006 5/16 7-164-036 35/64 7-164-066 25/32 7-164-096 1-1/16 7-164-1323/32 7-164-008 21/64 7-164-038 9/16 7-164-068 51/64 7-164-098 1-5/64 7-164-1347/64 7-164-010 11/32 7-164-040 37/64 7-164-070 13/16 7-164-100 1-3/32 7-164-1361/8 7-164-012 23/64 7-164-042 19/32 7-164-072 53/64 7-164-102 1-7/64 7-164-1389/64 7-164-014 3/8 7-164-044 39/64 7-164-074 27/32 7-164-104 1-1/8 7-164-1405/32 7-164-016 25/64 7-164-046 5/8 7-164-076 55/64 7-164-106 1-3/16 7-164-14211/64 7-164-018 13/32 7-164-048 41/64 7-164-078 7/8 7-164-108 1-1/4 7-164-1443/16 7-164-020 27/64 7-164-050 21/32 7-164-080 57/64 7-164-110 1-5/16 7-164-14613/64 7-164-022 7/16 7-164-052 43/64 7-164-082 29/32 7-164-112 1-3/8 7-164-1487/32 7-164-024 29/64 7-164-054 11/16 7-164-084 59/64 7-164-114 1-7/16 7-164-15015/64 7-164-026 15/32 7-164-056 45/64 7-164-086 15/16 7-164-116 1-1/2 7-164-1521/4 7-164-028 31/64 7-164-058 23/32 7-164-088 61/64 7-164-118 1-9/16 7-164-154

17/64 7-164-030 1/2 7-164-060 47/64 7-164-090 31/32 7-164-120 1-5/8 7-164-1569/32 7-164-032 33/64 7-164-062 3/4 7-164-092 63/64 7-164-122 - -19/64 7-164-034 17/32 7-164-064 49/64 7-164-094 1 7-164-124 - -

Type 1897

PNEUMATIC POWER CHUCKS

POW

ERCH

UCKS

BISON


15-3/4" Plain Back 3-Jaw ChuckPower chuck with wedge system design, self-contained with a large thru-hole

Features:• Large Thru-Hole• Steel Body• Self-Contained• High Clamping Force• Rapid Jaw Stroke• Extended Jaw Stroke• High Clamping Accuracy• Integral Air Cylinder

Standard Accessories:• Hard Master Jaws• Jaw T-nuts and Bolts• Air Distributor Ring

Optional Accessories:• Hard Top Jaws• Adapter Plates

Back View

Hard Top Jaws

Description Part Number*Air Distribution Ring with O-Ring Set 7-790-90016

O-Ring Set for Part Number 7-790-90016 (4 pc set) 7-790-90316T-nut for 1 bolt 7-789-920

Application ExampleMachining of Pipe Ends with Couplings

Double Jaw StrokeRapid Stroke and Extended (Gripping) Stroke

T1 Rapid StrokeT2 Extended Stroke

(slow gripping movement)A Rapid Stroke RangeB Gripping Range

fixed air distributor rings

Type 2500

15-3/4" Bison Air Distribution Ringwith O-Ring Set

7-785-1600

7-786-316 *See page 148 for mounting dimensions


BISON


Chuck Parameters Unit ValueOperating Pressure (max/min) bar 3-5 / 10

Air Consumption / Jaw Stroke at 5 bar dm3 3.7Total Gripping Force at 5 bar daN 9,000

Maximum Speed RPM min-1 1,300

Moment of Intertia kg•m2 6.0

Weight without the Top Jaws lbs 463.0

Chuck Dimensions inch mmN G 3/8"O .4724 12

R (g6) 8.0701 205S .1575 4T .1378 3.5U .1969 5V 1.2992 33

b min 3.9370 100b max 4.6850 119c min .6102 15.5c max 2.6772 68

d M20e 1.5748 40f 4.7244 120

g (H7) 1.0040 25.5h 2.3622 60

Chuck Diameter 15-3/4" 400Part Number 7-785-1600

Chuck Dimensions inch mmThru Hole P 5.5118 140

A 17.7165 450A1 19.0157 483

Clamping Stroke per Jaw .2756 7Rapid Stroke per Jaw .4724 12Total Stroke per Jaw a .7480 19

B 9.2126 234C 9.4094 239

D (H6) 12.2047 310E .3150 8F 14.7244 374G 9 x M16H 1.1811 30J 15.7480 400

K (H9) 16.3386 415L 16.9291 430M 1.0236 26


POW

ERCH

UCKS

BISON


Chuck Parameters Unit ValueMaximum Operating Pressure bar 10Air Consumption / Jaw Stroke dm3 3.7

Total Gripping Force daN 17,000Maximum Speed RPM min-1 1,000Moment of Intertia kg•m2 16.0

Weight without Top Jaws lbs 739.0

Chuck Dimensions inch mmN R 3/8"O .7874 20

R (g6) 12.047 306S .1575 4T .1575 4V 1.4567 37

b min 5.8740 149.2b max 6.8740 174.6c min .6102 15.5c max 3.1890 81

d M20e 1.4961 38f 5.1772 131.5

g (H7) 1.004 25.5h 2.3622 60

Chuck Diameter 20" 500Part Number 7-785-2000

Chuck Dimensions inch mmThru Hole P 9.055 230

A 22.441 570A1 24.213 615

Clamping stroke per Jaw .3386 8.6Rapid stroke per Jaw .6614 16.8Total Stroke per Jaw a 1.000 25.4

B 10.906 227C 11.1024 282

D (H6) 16.339 415E .3150 8F 18.661 474G M12H 1.0236 26J 19.685 500L 21.654 550M 1.0236 26

20" Diameter, 3-Jaw Heavy Duty Pneumatic Power ChuckPlain Back with Large Thru-Hole

Type 2500-500-230

• Thru-hole diameter: 9.055" (230 mm)• Steel hardened and ground body• Self-contained with integral air cylinder• Extended 1" jaw stroke

• High clamping accuracy• Each chuck is provided with safety valve• 12 mounting bolts

Back View


BISON


1. Initial Compression2. End of Gripping Range3. Beginning of the Gripping Range

Total Gripping Force

Spring CompressionPart Number 7-784-2500

Chuck Parameters Unit ValueOperating Pressure bar 6.3

Max Pressure bar 10Air Consumption / Jaw Stroke dm3 11.5

Total Gripping Force daN 15,000Maximum Speed RPM min-1 1,000

Clamping Stroke per Jaw mm 8.6

Rapid Stroke per Jaw mm 16.8

Total Stroke per Jaw mm 25.4

Moment of Intertia kg•m2 6.3Weight without Top Jaws lbs 1080

Pneumatic Spring Power ChuckLarge Thru-Hole and High Clamping Force• Made of high quality alloy steel• Chuck parts and chuck body are hardened and ground• Jaw Serration: 3/32" x 90• Chucks are provided with Heavy Load Red Springs• Springs are fitted into the removable and adjustable steel tubes• Air Ring is provided with 610mm ID• Chucks are provided with emergency jaw opening mechanism, in case of pressure drop• Direct jaw and wedge plunger lubrication• Clamping with 12 piece set of springs• Release with compressed air• Clamping force can be adjusted with the different number of sprins and spring tension• Easy spring replacement

NOTE: The Pneumatic Spring Power Chuck is a specialorder productCall 800-992-4766 or 508-653-8897 to speak with acustomer service representative for more information

MOUNTING BOLTS/HEX WRENCHES

BISON


Size Key Size Length Part Number

5/16-18 1/4

3/4 7-898-0051 7-898-008

1-1/4 7-898-0111-3/4 7-898-0172-1/4 7-898-023

3/8-16 5/163/4 7-898-105

1-1/4 7-898-1112-3/4 7-898-128

7/16-14 3/8 1 7-898-208

1/2-13 3/81 7-898-308

1-1/2 7-898-3143-1/4 7-898-335

5/8-11 1/2

1-1/4 7-898-4111-3/4 7-898-4172-1/2 7-898-4202-3/4 7-898-4283-1/4 7-898-4353-1/2 7-898-4384-1/2 7-898-450

3/4-10 5/8

1-1/2 7-898-5142-1/4 7-898-5232-1/2 7-898-524

3 7-898-5303-1/4 7-898-535

4 7-898-5444-1/2 7-898-548

5 7-898-5565-1/2 7-898-558

7/8 - 9 3/4 6 7-898-610

Fractional

Size W Length(inches) Part Number

1/16 1.8 6-998-1455/64 1.9 6-998-1473/32 2.0 6-998-1507/64 2.1 6-998-1511/8 2.3 6-998-1539/64 2.4 6-998-1565/32 2.5 6-998-1593/16 2.8 6-998-1627/32 3.0 6-998-1651/4 3.3 6-998-1685/16 3.8 6-998-1713/8 4.3 6-998-1747/16 4.8 6-998-1771/2 5.3 6-998-1809/16 5.8 6-998-1835/8 6.3 6-998-1853/4 7.3 6-998-187

MetricSize W(mm)

a(inches) Part Number

2.0 1.97 6-999-5823.0 2.56 6-999-5834.0 2.83 6-999-5845.0 3.15 6-999-5856.0 3.54 6-999-5867.0 3.7 6-999-5878.0 3.94 6-999-58810.0 4.4 6-999-59012.0 4.9 6-999-59214.0 5.5 6-999-59417.0 6.3 6-999-59719.0 7.0 6-999-59922.0 7.9 6-999-6023-22 11 Pc Set 6-999-711

ConversionsFractional Inch mm

1/32 0.031 0.791/16 0.063 1.593/32 0.094 2.381/8 0.125 3.185/32 0.156 3.973/16 0.188 4.767/32 0.219 5.561/4 0.250 6.359/32 0.281 7.145/16 0.313 7.9411/32 0.344 8.733/8 0.375 9.53

13/32 0.406 10.327/16 0.438 11.1115/32 0.469 11.911/2 0.500 12.70

17/32 0.531 13.499/16 0.563 14.2919/32 0.594 15.085/8 0.625 15.88

21/32 0.656 16.6711/16 0.688 17.4623/32 0.719 18.263/4 0.750 19.05

25/32 0.781 19.8413/16 0.813 20.6427/32 0.844 21.437/8 0.875 22.23

29/32 0.906 23.0215/16 0.938 23.8131/32 0.969 24.60

1 1.000 25.40

Hex L-Wrenches: Singles, Short

Measurement Translations:

1 foot = 12 inches1 inch = 25.4 mm1 cm = 10 mm1 meter = 100 cm1 micron = 0.001 mm1 micron = 0.0000394 inches1 lb. = 16 oz1 lb. = 0.4536 kg1 kg = 2.20 lbs

Socket Head Cap ScrewsStandard ANSI B 18.3, Grade 12.9, Made in the USA• Sold in package quantity of 1 piece only M

OU

NTIN

GBO

LTS/H

EXW

RENCH

ES

LIVE CENTERS

BISON


Universal Pipe Live Centers• Interchangeable heads• Triple bearing design• Designed for using with interchangeable taperedheads or with 3", 4", and 5" front mounting,self-centering chucks• All parts are made of steel, hardened andprecision ground• All interchangeable parts can be easily replaced• Bodies, heads, and chucks are sold separately• Rotating bodies come with the mounting bolts

MorseTaper Size

A B D L Max Wt ofWorkpiece RPM

max

Wtwithhead

AccuracyT.I.R.

MountingBolts Chuck Body

OnlyHeadOnly*

inches lbs lbs Part Number

380/1 3.74 5.90

3.07 7.09 1543 400013.5 .002

7-573-106 7-811-0300 7-573-0337-573-0301

80/2 5.70 7.87 22.5 .002 7-573-0302

4100/1 3.74 5.90

3.86 8.11 2205 350016.5 .002

7-573-108

7-811-0400 7-573-0447-573-0401

100/2 5.70 7.87 25.4 .002 7-573-0402100/3 7.68 9.84 32.6 .002 7-573-0403

5125/2 5.70 7.87

4.84 9.52 3307 320032.0 .002

7-812-0500 7-573-0557-573-0502

125/3 7.68 9.84 41.0 .002 7-573-0503125/4 9.65 11.81 53.0 .002 7-573-0504

* Head thickness is 1.57" for all diameters

Rotating BodyType 9157

Rotating Chuckssee page 110

Front MountingChucks

see page 75

Mounting Bolts3" M6 x 1.0 -1.4"

4" and 5" M8 x 1.25 - 1.6"

Tapered HeadType 8883

Draw Bar Threads:MT3 3/8" - 16MT4 1/2" - 13MT5 5/8" - 11

Type 8882

LIVE CENTERS

BISON


Bull Head Live Centers• Triple bearing design• Three matched bearings are preloaded at the factory• Good thrust and radial capabilities• Bearings are protected by a special seal• Head is made of high quality alloy steel and heat treated to RC 61-63• 60 degree head angle• Centers are designed to hold pipe and hollow work

MorseTaper

D A B C L Max Wt ofWorkpiece

lbs

RPMmax

Wtlbs T.I.R. Part

Numberinches1 1.97 .79 1.56 1.38 3.66 220 5000 .77 .0003 7-575-0102 2.36 1.18 1.60 1.38 4.11 400 5000 1.32 .0003 7-575-0202 3.15 1.18 2.32 2.09 4.84 660 4500 2.76 .0003 7-575-0213 3.15 1.18 2.32 2.09 5.51 770 4500 2.98 .0003 7-575-0303 3.93 1.57 2.64 2.40 5.83 1210 3000 5.07 .0003 7-575-0314 3.93 1.57 2.70 2.40 6.73 1320 3000 5.62 .0003 7-575-0404 5.51 2.76 3.05 2.76 7.09 1540 3000 11.00 .0004 7-575-0425 6.69 3.94 3.05 2.76 8.15 1653 2000 17.60 .0008 7-575-0516 11.50 7.09 4.57 4.21 11.73 4400 1000 75 .002 7-575-060

NC Quad-Bearing Live Centers• Heavy duty• High speed• 7000 to 6000 RPM

MorseTaper

Max Wt ofWorkpiece

lbs

RPMmax

MaxRun out A B C D L Wt

lbsPartNumber

4 2200 7000 .0002" 1.10 4.58 1.91 2.76 8.62 5.50 7-566-0045 4400 6000 .0002" 1.57 5.87 2.64 3.47 11.00 11.00 7-566-005

Type 8825

Type 8814NC

LIVEand

DEA

DCEN

TERS

LIVE CENTERS

BISON


LIVEand

DEA

DCEN

TERS

Super Precision and Precision Live Centers• Machined from one piece of forging, hardenedand precisely ground• Three precision high-quality bearings are protectedby a special steel shield and neoprene seal

MorseTaper

Max Wt ofWorkpiece

lbs

D A L C B RPMmax

Wtlbs

PrecisionLive Centers

Super PrecisionLive Centers

inches T.I.R. Part Number T.I.R. Part Number1 220 1.50 .59 4.07 .70 1.97 5000 .64 .0003 7-565-001 .0002 7-565-1012 460 1.57 .70 4.74 .87 2.22 5000 1.00 .0003 7-565-002 .0001 7-565-1023 925 2.20 .98 6.14 1.12 2.95 4000 2.13 .0003 7-565-003 .0001 7-565-1034 1850 2.52 1.10 7.24 1.24 3.21 3000 3.85 .0003 7-565-004 .0001 7-565-1045 4400 3.35 1.61 9.33 1.77 4.23 2500 8.37 .0004 7-565-005 .0002 7-565-1056 7700 5.12 2.48 13.13 2.52 5.96 2000 26.43 .0004 7-565-006 .0002 7-565-106

MorseTaper

MaxWt of Workpiece

lbs

Thrust lbsat

1000 RPML B C D A RPM

maxWtlbs

PartNumber

2 220 400 5.41 2.87 1.02 1.73 0.91 8000 1.33 7-567-0023 441 530 6.53 3.37 1.26 1.89 1.10 6000 1.95 7-567-0034 882 770 7.89 3.88 1.69 2.36 1.53 4500 3.62 7-567-0045 1433 990 9.80 4.70 2.01 2.76 1.77 4000 7.17 7-567-0056 3087 1580 12.64 5.47 2.44 3.70 2.40 3000 17.20 7-567-006

Type 8823

Type 8811

• Adjustable, ultra precision radialbearing reduces run out tominimum after much use

• Easy to adjust

• Live centers are lubricated with aspecial grease and do not require anyadditional lubrication

Ultra Precision Adjustable Live CentersTriple Bearing Design• ± 0.00006" T.I.R• Machined from one piece of forging, hardenedand precisely ground• Three precision, high-quality bearings areprotected by a special steel shield andneoprene seal

LIVE CENTERS

LIVEand

DEA

DCEN

TERSBISON


HD Ultra and Super Precision Live Centers• Machined from one piece of forging,hardened and precisely ground• Centers are provided with three selectedheavy-duty ultra precision bearings• Bearings are protected against dust and coolant

MorseTaper

Max Wt ofWorkpiece

lbs

A B D G K RPMmax

CenterWtlbs

Super PrecisionLive Centers

Ultra PrecisionLive Centers

inches T.I.R. Part Number T.I.R. Part Number1 220 2.382 1.417 0.591 0.4750 0.670 7000 0.88 0.0002 7-568-001 -2 441 2.539 1.772 0.787 0.7000 0.925 7000 1.10 0.0002 7-568-002 0.00012 7-568-1023 1102 3.110 2.362 0.984 0.9380 1.201 5000 2.87 0.0002 7-568-003 0.00012 7-568-1034 1764 3.996 2.756 1.260 1.2310 1.575 3800 5.07 0.0002 7-568-004 0.00012 7-568-1045 4409 5.039 3.543 1.575 1.7480 1.929 3000 10.36 0.0002 7-568-005 0.00012 7-568-105

LIVE CENTERS

BISON


Live Centers with Interchangeable Inserts• Body of live centers and inserts are made of forgings,hardened and precisely ground• Sets are provided with the main body and sevendifferent style inserts in a wooden case• Precision high quality bearings• Special sealing ring protects the bearings fromcoolant and dust• Inserts are easily interchangeable

Morse Taper 2 3 4 5 6Set Part Number 7-570-002 7-570-003 7-570-004 7-570-005 7-570-006

Body Only Part Number 7-570-102 7-570-103 7-570-104 7-570-105 7-570-106Approx Wt w/o Insert lbs 0.98 2.02 3.71 8.00 25.40

RPM max 5000 4000 3000 2500 2000T.I.R. 0.0008 0.0008 0.0008 0.0012 0.0012

Max Wt of Workpiece lbs 220 440 880 1770 3550L 4.055 5.217 6.220 7.815 10.846L1 1.54 2.03 2.19 2.72 3.70L2 0.177 0.197 0.217 0.256 0.256D 1.57 2.20 2.52 3.35 5.12d2 0.71 0.98 1.10 1.61 2.48d3 0.28 0.47 0.59 0.87 1.89

Interchangeable Tips ONLYType 8848, Part Number 7-570-202 7-570-203 7-570-204 7-570-205 7-570-206

L3 0.75 0.98 1.18 1.46 1.73d3 0.28 0.47 0.79 0.87 1.89d4 0.59 0.79 0.98 1.26 1.42

Type 8849, Part Number 7-570-302 7-570-303 7-570-304 7-570-305 7-570-306L4 0.51 0.79 0.91 1.10 1.34d5 0.87 1.42 1.77 2.20 2.76d6 0.12 0.24 0.39 0.55 0.70

Type 8850, Part Number 7-570-402 7-570-403 7-570-404 7-570-405 7-570-406L4 0.51 0.79 0.91 1.10 1.34d7 1.50 2.48 2.76 3.15 3.94d8 0.71 1.30 1.38 1.50 1.97

Type 8851, Part Number 7-570-502 7-570-503 7-570-504 7-570-505 7-570-506L4 0.51 0.79 0.91 1.10 1.34d9 0.87 1.42 1.77 2.20 2.76d10 0.71 1.10 1.46 1.73 2.28d11 0.31 0.47 0.67 0.79 0.94

Type 8852, Part Number 7-570-602 7-570-603 7-570-604 - 7-570-606L4 0.51 0.79 0.91 - 1.34d12 1.18 1.77 2.48 - 3.94d13 0.98 1.50 2.09 - 3.46d14 0.59 0.87 1.18 - 2.13

Type 8853 Part Number 7-570-702 7-570-703 - 7-570-705 7-570-706L4 0.51 0.79 - 1.10 1.34d16 0.049 0.049 - 0.098 0.157d4 0.59 0.79 - 1.26 1.42

Type 8854, Part Number 7-570-802 7-570-803 7-570-804 7-570-805 7-570-806L4 0.51 0.79 0.91 1.10 1.34d15 0.71 0.98 1.26 1.77 2.20

Type 8855, Part Number 7-570-902 7-570-903 7-570-904 7-570-905 7-570-906L5 2.36 3.15 3.94 4.72 6.30B 0.79 1.18 1.57 1.97 2.36

Interchangeable Inserts

Live Center Body

Type8848

Type8852

Type8855

Type8851

Type8849

Type8854

Type8853

Type8850

Type 8832

Extractor

LIVE CENTERS

BISON


TaperNo.

ClampingRange d L Qty per

SetLeft = LRight = R

PartNumber

4 and 5 1.18 - 1.97 .47 1.02 3L 7-590-941LR 7-590-941R

4 and 5 1.65 - 3.94 .47 1.10 3L 7-590-943LR 7-590-943R

5 2.05 - 4.72 .71 1.89 3L 7-590-954LR 7-590-954R

Automatic Face Drivers for RH and LH Operations• Ideal holding device for a modern, highproduction lathe• Specially suited to repetition work• Slim design• All wearable parts hardened and ground• No service required• Spring loaded center• Carrier teeth based on hydro-plastic mediumadjust automatically to work piece• Save set up time - One setting for machining all work pieces

Drive Pins and Centers for Automatic Face Drivers

TaperNo.

ClampingRange d L Part

Number4 and 5 1.18 - 1.97 .47 3.03 7-590-8414 and 5 1.65 - 3.94 .55 3.23 7-590-843

5 2.05 - 4.72 .79 4.72 7-590-8555 2.56 - 5.91 .79 4.72 7-590-855

MTShank

HeadDiameterD

ClampingRangeD1

Max Wt ofWorkpiece

lbs

Max ArialLoadlbs

A B LDrive PinRight

Drive PinLeft Center Spring Wt

lbs

Face DriverPartNumberPart Number

4 2.68 1.18 - 1.97 121 2204 2.52 3.15 7.28 7-590-941R 7-590-941L 7-590-841

7-590-2037

4.41 7-590-0414 3.19 1.65 - 3.94 143 2645 2.64 3.31 7.36 7-590-943R 7-590-943L 7-590-843 5.95 7-590-0435 2.68 1.18 - 1.97 121 2204 2.52 3.15 8.35 7-590-941R 7-590-941L 7-590-841 6.61 7-590-0515 3.19 1.65 - 3.94 141 2645 2.64 3.81 8.35 7-590-943R 7-590-943L 7-590-843 7.50 7-590-0535 3.54 2.05 - 4.72 220 4409 3.39 4.45 9.94 7-590-954R 7-590-954L 7-590-855 7-590-2044 11.46 7-590-054

Type 8410

• Heavier cuts without slippage• Higher concentricity and accuracy• Most effective driving action even withirregular faces• All drive plate components are hardened andground for long life• Complete OD machining in ONE clamping• Accurate end location• Load and unload automatically• Eliminate preliminary machining of end faces• Wide range clamping capability

Face drivers are providedwith RH pins

•RHLH

LIVEand

DEA

DCEN

TERS

LIVE CENTERS

BISON


Universal Heavy Duty Hydraulic Automatic RH andLH Face Drivers• Complete OD machining in ONE clamping• Accurate end location• Load and unload automatically• Eliminate preliminary machining of end faces• Wide range clamping capability

6 RH and LHDriving Pins

Type 8811

MTShank

HeadDiameterD

ClampingRangeD1

Max Wt ofWorkpiece

lbs

Max ArialLoadlbs

A D1 B L Wtlbs

Face DriverPartNumber

6 4.72 3.30 - 7.87 287 6170 4.80 3.23 5.67 10.35 20 7-591-051

LIVE CENTERS

BISON


Full Dead Centers and Half Dead Centers, ± 0.0001" T.I.R.• Designed for use wherever high accuracies are required• Case hardened to 61-63 HRC• Carbide tipped centers give longer tool lifeand require less re-grinding

Dead Centers with Nut, ± 0.0001" T.I.R.• Centers are provided with a nut• Designed for use wherever high accuracy is required• Case hardened to 61-63 HRC• Carbide tipped centers give longer tool lifeand require less re-grinding• Center Type #8725 is threaded and provided witha nut to remove the center from a tailstock

MorseTaperNo.

L D E Wtlbs

Carbide TippedType 8711

Ball BearingSteel

Type 8712

Half CarbonSteel

Type 8730

Half CarbideTippedType 8731

Part Number1 3.15 .48 .28 .13 7-550-005 7-555-005 7-541-0012 3.94 .71 .28 .44 7-550-010 7-555-010 7-540-002 7-541-0023 4.92 .95 .43 .66 7-550-015 7-555-015 7-540-003 7-541-0034 6.30 1.24 .55 1.5 7-550-020 7-555-020 7-540-004 7-541-0045 7.87 1.76 .71 4.0 7-550-025 7-555-025 7-541-0056 10.63 2.51 .71 11.5 7-550-030 7-555-030 7-541-006

MorseTaperNo.

L L1 D E Wtlbs

Alloy SteelType 8725PartNumber

Carbide TippedType 8726PartNumber

Spare Nut

WrenchSize

ThreadSize

PartNumber

2 4.41 1.63 .71 .28 .55 7-545-002 7-546-002 32 mm M22 x 1.5 7-545-9023 5.43 1.95 .95 .43 1.10 7-545-003 7-546-003 41 mm M27 x 1.5 -4 6.89 2.45 1.24 .55 2.43 7-545-004 7-546-004 55 mm M36 x 1.5 7-545-9045 8.54 3.05 1.76 .71 5.73 7-545-005 7-546-005 75 mm M48 x 1.5 -6 11.42 3.80 2.51 .71 14.55 7-545-006 7-546-006 100 mm M68 x 1.5 7-545-906

Type 8725

Type 8726

Type 8711

Type 8712

Type 8711

Type 8712

Type 8730

Type 8731

LIVEand

DEA

DCEN

TERS

INDEXERS AND FACE PLATES

BISON


Horizontal/Vertical Super Spacers• New improved horizontal and vertical super

spacers have quick and easy to changedividing plates

• Designed for milling, drilling, jig boring andrelated machining operations

• Fixtures are also used to index parts that arebeing inspected

• Significantly increases productivity by reducingthe time required to position the workpiece onthe machine

New compact design provides a wide variety of dividingAngular Indexing can be performed throughthe graduated ring from 0° to 360° in increments of 1°Direct Indexing is done by means of a special dividingmechanism permitting divisions in2, 3, 4, 6, 8, 12,and 24 without any disassembly operationsSpecial Indexing is used to obtain divisions not listed aboveWe offer additional quick change dividing plates which canbe easily mounted to the super spacer belowSee page 161 for sizes

• Accuracy:Maximum total spacing error: 2'Squareness of chuck to base: .0008" maxParallelism over face: .0008" maxChuck concentricity (universal): .0015" T.I.R.maxChuck concentricity (SET-TRU): .0015" T.I.R.maxCenter hole concentricity: .0008" T.I.R.maxMounting flange concentricity: .0008" T.I.R.max

Standard Accessories:• 2 Mounting bolts with T-nuts• 2 Hex keys• 1 Chuck wrench• 2 Eye bolts• 2 Locating keys

ChuckDiameter A B C D

Thru HoleDiameter

DE F G H L Wt

lbsWith Chuck Without Chuck

Part Number6-1/4" 4.92 11.85 8.27 6.30 1.653

.715.51 .55 8.66 9.65 72 7-609-006 - 7-609-016 -

8" 6.30 15.04 10.43 7.87 2.165 6.30 .71 9.72 11.81 127 7-609-008 - 7-609-018 -12-1/2" 9.84 21.85 16.24 12.40 4.055 7.87 .71 12.24 15.75 317 - 7-609-012 - 7-609-022

Type 5902: 6-1/4" and 8" diameter super spacershave a friction bearing

Type 5912: 12-1/2" diameter super spacerhas a special heavy duty roller bearing

Optional Accessories:

Tailstock7-610- 1...

7-610-

Super Spacer withmounted face plate


IND

EXERSand

FACEPLATES

BISON


ChuckDiameter

Tailstock Face Plate

Part Number6-1/4" 7-610-106 7-610-5068" 7-610-108 7-610-508

12-1/2" 7-610-112 7-610-512

ChuckDiameter

SpacerwithoutChuck

Front MountingChucks4-Jaw

Front MountingChucks3-Jaw

Part Number6-1/4" 7-609-016 7-814-0600 7-813-06008" 7-609-018 7-814-0800 7-813-0800

12-1/2" 7-609-022 7-814-1200 7-813-1200

Chucks and Super Spacers

Spare Parts

Optional AccessoriesOptional Dividing Plates

• Designed for fast and easy replacement

# of Teeth # of Divisions6” 8” 12”

Part Number24 2, 3, 4,6, 8, 12, 24 7-609-0701 7-609-0735 7-609-076523 23 7-609-0703 7-609-0737 7-609-076722 2, 11, 22 7-609-0705 - 7-609-0769


BISON


No. PartDescription

Size of Super Spacer6" 8" 12"

Part Number1 Base 7-609-0106 7-609-0108 7-609-01122 Spindle 7-609-0206 7-609-0208 7-609-02123 Driving Plate - - -4 Sleeve - - -4a MT Sleeve - - -5 Indexing Collar 7-609-0506 7-609-0508 7-609-05126 Clamping Collar 7-609-0606 7-609-0608 7-609-06127 Dividing Plate 7-609-0701 7-609-0735 -8 Driving Collar 7-609-0806 7-609-0808 7-609-08129 Back Cover 7-609-0906 7-609-0908 7-609-091210 Clamping Bar - 7-613-0708 7-613-071211 Head - 7-613-0808 -12 Handle - 7-613-0908 -13 Set Screw M4X0.7X5 M6X1X6 M6X1X614 Handle Ball 7-613-2406 7-613-2408 -15 Roller Pin - 7-613-1408 -16 Pin 7-613-1306 7-613-1308 7-613-131217 Click Pin 7-613-1206 7-613-1208 7-613-121218 Spring 7-613-1806 7-613-1808 7-613-181219 Screw M12X1.75X16 M16X2X23 M20X2.5X6020 Brake Spring 7-613-190621 Brake Sleeve 7-613-150622 Brake Roller 7-613-230623 Key and Screw 7-613-2906 7-613-2908 -24 Key Screw M6X1X14 M6X1X14 M6X1X1425 T-Bolt - 7-613-2208 -26 T-Bolt Nut - - -27 T-Bolt Washer - - -

No. PartDescription

Size of Super Spacer6" 8" 12"

Part Number28 Marking Plate 7-609-2806 7-609-2808 7-609-281229 Set Screw M5X0.8X8 M5X0.8X8 M5X0.8X830 Bolt M8X1.25X35 M10X1.75X40 M16X2X6531 Washer 7-609-3106 7-609-3108 7-609-311232 Pin - - -33 Bolt M6X1X41 M6X1X46 M10X1.5X7534 Dividing Pin - - -35 Grease Nipple N/A N/A N/A36 Bolt M8X1.25X30 M10X1.75X40 M12X1.75X6037 Cover Screws -38 Bolt M6X1X20 M8X1.25X20 M12X1.75X3539 Washer 7-609-3906 7-609-3908 7-609-391240 Washer 7-609-4006 7-609-4008 7-609-401241 Driving Handle - 7-613-4408 -42 Locking Nut - - -43 Ball 7-613-2406 7-613-2408 -44 Cap Screws M6X1X20 M8X1.25X20 M8X1.25X2045 Bearing Discs N/A N/A 7-609-94546 Bearing N/A N/A 7-609-94647 Bearing N/A N/A 7-609-94748 Bearing Discs N/A N/A 7-609-94849 Bearing N/A N/A 7-609-94950 Chuck Bolts M10X1.5X70 M10X1.5X80 M20X2X10051 Chuck 7-813-0600 7-813-0800 7-813-120052 Hex Key 6-999-588 6-999-59453 Hex Key 6-999-585 6-999-58654 Hex Key 6-999-586 6-999-588 6-999-590

Replacement Parts for Horizontal/Vertical Super Spacers


BISON


TableSize

Number of Divisions (Holes) SetPart NumberPlate No. I Plate No. II Plate No. III

6-1/4" and 8"23, 25, 28, 34,36, 38, 44

21, 26, 29, 32,33, 39, 43

20, 24, 27, 31,36, 37, 41

7-622-008

10", 12", 16"24, 25, 26, 28, 32,34, 38, 44, 46

16, 17, 19, 21, 29,33, 39, 43, 49

15, 18, 20, 23, 27,31, 37, 41, 47

7-622-016

20"24, 25, 28, 34, 38,39, 44, 46, 49

21, 29, 32, 33, 43,53, 59, 61, 63

15, 26, 27, 31, 36,37, 41, 47, 65

7-622-020

Horizontal/Vertical Low Profile Rotary Tables• Tables can be used horizontally and vertically• Rigid, low profile, compact design provides

for three types of dividingAngular Indexing can be performed throughthe graduated ring from 0° to 360° inincrements of 1°Rapid Indexing is done by means of a specialdividing mechanism in divisions 2, 3, 4, 6, 8, 12,and 24 without any disassembly operationIndexing with the set of special dividing plates

• Disengageable worm gear permits direct andrapid indexing

• Semi-steel table body

TableSize A B C D H F G E L

Worm

Ratio

ThruHoles

CenterHoleMT

Wtlbs

Part Numberwith

Dividing Plates

Part Numberwithout

Dividing Plates6-1/4" 8.9 7.9 3.54 6.3 .551 4.92 .394 3.78 5.00 1:60 .827 3 44 7-621-006 7-621-00608" 10.6 9.5 3.74 7.87 .551 5.91 .394 3.86 5.79 1:60 1.378 3 55 7-621-008 7-621-008010" 12.5 11.2 4.53 9.84 .709 6.89 .472 4.52 6.89 1:90 1.378 3 121 7-621-010 7-621-010012" 14.7 13.7 4.53 12.6 .709 7.87 .472 4.72 8.15 1:90 1.417 3 176 7-621-012 7-621-012016" 18.3 16.9 4.92 15.7 .709 9.84 .551 5.31 9.76 1:90 1.969 4 269 7-621-016 7-621-016020" 22.9 21.1 6.69 19.7 .709 12.4 .630 6.89 12.2 1:120 2.559 5 573 7-621-020 7-621-0200

Table with MountedDividing Plateand Handle

Table with MountedCrank Wheel

Sets are provided withthree dividing platesand one handle

Sets of Dividing Plates with Handle

• Optional Accessories:

7-811- 7-610-8..7-872-7-814-7-812-

Type 5859

Accuracy:• Squareness of clamping surface to base: .0008" max• Parallelism of clamping surface to base: .0008" max• Flatness of clamping surface: .0008" max• True running of MT center hole: .0004" max• Indexing accuracy: 1'

Standard Accessories:• 2 Mounting bolts with nuts• Crank wheel• 3 Dividing plates with one handle

IND

EXERSand

FACEPLATES


BISON


Size ofSuper Spacer

H+.002" K B A

F KeySize

E

MTNo.

Wtlbs

Tailstock Dead Center

min max Part Number

5" 3.937 5.51 3.15 7.68 1.30 2.48 0.55 2 14 7-610-104 7-540-0026-1/4" 4.921 7.01 3.54 7.68 1.54 2.72 0.55 2 16 7-610-106 7-540-0028" 6.299 8.39 4.53 9.84 1.89 3.35 0.71 3 28 7-610-108 7-540-003

12-1/2" 9.843 11.93 5.91 11.02 2.34 3.92 0.71 4 51 7-610-112 7-540-004

Hmin-max

Fmin-max L K

max B E(H7)

Cmax

MTNo.

Wtlbs

Dead Center Tailstock

Part Number3.74-5.12 1.57-2.76 13.19 6.10 3.94 .55 7.2 2 26.5 7-540-002 7-610-8065.12-6.69 1.97-3.54 16.10 7.87 4.72 .71 8.8 3 41.5 7-540-003 7-610-8086.69-7.87 1.97-3.54 17.05 9.06 5.59 .71 10 3 56.0 7-540-003 7-610-8108.66-9.84 2.36-3.94 18.31 11.22 6.46 .71 12 4 95.0 7-540-004 7-610-816

Tailstocksfor Horizontal/Vertical Super Spacers• Rigid and precision design

Tailstocks are provided with• Precision dead center with .0002" T.I.R.• 2 Locating keys• 2 Mounting bolts with T-nuts

Optional centers can be found on page 159

Type 5819

Type 5818

Adjustable Tailstocksfor Horizontal/Vertical Super Spacers or for use with any Rotary Table• Rigid and precision design• Tailstocks are adjustable in two directions (all F and H)

Tailstocks are provided with• A precision dead center with .0002" T.I.R.• 2 Locating keys• 2 Mounting bolts with T-nuts

Optional centers can be found on page 159

6", 8", and 12"Super Spacer


BISON


DiameterA H B D C

[+.008] M FT-slot G

[+.008]Wtlbs

PlatePart

NumberE Bolt6-1/4" 1.18 4.921 1.18 0.157 M10x1.5 0.59 .47 3/8" 5.512 8.6 7-610-5068" 1.38 6.299 1.57 0.197 M10x1.5 0.59 .55 1/2" 6.929 12 7-610-508

12-1/2" 1.97 10.236 1.97 0.197 M16x2 1.02 .71 5/8" 11.260 43 7-610-512

Face Plates• Designed for use with Bison horizontal/vertical super spacers• Can also be mounted with an adapter plate on any lathe spindle nose

Type 9440

IND

EXERSand

FACEPLATES


BISON


Base Plates for Front and Back Mount Chucks• Designed for use with Bison 2, 3, and 4-jaw

front mounting and back mountingself-centering lathe chucks, and for usewith 2, 3, 4, and 6-jaw SET-TRU chucks

• Ideal for use on milling and drillingmachines as well as on rotary tableswith 3/6 and 4/8 slots

Base plates are supplied with• 4 Mounting bolts with T-nuts• 1 MT centering sleeve

Chucks are sold separately

ChuckDiameter

MT Pin Bolt Base Plate for Universal Base Plate for SET-TRU

MT PartNumber

PartNumber H Wt

lbsPart

Number H Wtlbs

PartNumber

5" 2 7-872-932 7-872-905 0.57 3.8 7-872-305 .57 3.9 7-872-6056-1/4"

3

7-872-9337-872-906

0.65 5.5 7-872-306 .69 11.5 7-872-6068" 7-872-933 0.77 7.7 7-872-308 .77 16.8 7-872-60810" 7-872-933

7-872-9100.81 12.9 7-872-310 .81 27.4 7-872-610

12-1/2" 7-872-933 1.00 23.9 7-872-312 1.00 46.3 7-872-61215-3/4" 4 7-872-934 7-872-916 1.08 40.32 7-872-316 1.18 40.0 7-872-61620" 5 7-872-935 - - - - 1.50 77.0 7-872-620

Type 8298

Back View

ChuckDiameter A B h Wt

lbsPlate for Universal Chucks Plate for SET-TRU Chucks

D E F Part Number D E F Part Number6-1/4" 9.84 7.48 1.10 10.3 4.9213 5.5118 3.543 7-630-006 3.386 5.5118 2.36 7-630-6068" 11.81 9.21 1.26 16.2 6.2992 6.9291 5.118 7-630-008 4.331 6.9291 2.76 7-630-60810" 13.94 11.50 1.26 25.0 7.8740 8.8189 5.787 7-630-010 5.708 8.8188 3.94 7-630-610

12-1/2" 16.77 14.25 1.57 35.5 10.2362 11.2598 6.690 7-630-012 7.087 11.2598 4.72 7-630-61215-3/4" 20.47 17.72 1.89 51.2 12.9921 14.2519 6.693 7-630-016 11.750 6.7500 4.72 7-630-616

Type 8293

Base Plates for Back Mount ONLY• Designed for use with Bison 2, 3, and, 4-jaw self-centering Plain

Back lathe chucks, Back Mount ONLY with a semi-steel orforged steel body as well as for use with 2, 3, 4, and 6-jawSET-TRU chucks

• Perfect for milling and drilling operations

Base plates are provided with• 2 Mounting bolts with T-nuts• 2 T-slot keys• 1 Chuck wrench with sliding T-bar

Chucks are sold separately

Type 9452Type 9450


BISON


4-Jaw Self-Centering, Low Profile Forged Steel Bodywith Rectangular Base• Ideal for all types of milling, grinding, drilling,

and tapping operations on vertical and horizontalCNC machines and conventional milling and grinding machines

• All surfaces are hardened and precision ground,square and parallel to an accuracy of 0.0008"

• Bison’s precision steel body 4-jaw scroll chuckguarantees repeatability within 0.0004" T.I.R.

• Ideal for pallet applications

Diameter A Q B K C D E E1 F G H M=P S TClamping Range Wt

lbsPart

NumberOD ID6-1/4" 8.46 6.50 2.48 1.69 .709 1.772 .5512 .7087 .980 .433 2.64 5.669 .55 1.65 .1181-6.30 1.65-5.75 35 7-640-0068" 9.84 7.87 2.84 1.77 .709 2.3622 .5512 .7087 1.06 .551 3.15 6.850 .55 2.17 .1575-7.48 1.97-7.84 51 7-640-00810" 12.2 9.84 3.27 2.05 .846 3.150 .7087 .7087 1.25 .630 3.74 8.583 .71 2.99 .1968-9.84 2.28-9.25 81 7-640-010

ChuckDiameter

Hard TopJaws

Hard MasterJaws Scroll Pinion Angled

WrenchRatchetWrench

MountingBolt

6-1/4" 7-883-406 7-885-406 7-887-506 7-886-5067-640-908

7-640-9267-640-948

8" 7-883-408 7-885-408 7-887-508 7-886-508 7-640-92810" 7-883-410 7-885-410 7-887-510 7-886-510 7-640-910 7-640-930 7-640-950

Spare Parts

Type 9419

Standard Accessories:• 1 Set of two-piece reversible jaws

(hard top and hard master jaws)• 1 Ratchet wrench• 1 Angled wrench• 1 Set of 2 mounting bolts with

T-nuts and two T-slot keys

Optional Accessories:• Soft top jaws, part number series 7-884-

American Standard Two Piece Tongue and Groove Jaws

IND

EXERSand

FACEPLATES

VISES

BISON


Modular Precision Vises for CNC Machines• All surfaces are hardened and precision groundsquare and parallel to anaccuracy of ±0.0006" jaws and ±0.0004" base

• Forged steel body• Low profile pull-down jaws• Design eliminates clamping deflection• Jaws can be opened very wide and providesstrong clamping power

Swivel BaseType 6586

Handle

JawWidthS

A B C H L amax h k

(H7)

MaxClampingForcelbf

Wtlbs

VisePart

Number

HandlePart

Number

ClampPart

Number

4" 3.35 1.38 .51 2.76 12.60 6.30 1.38 .4724 4410 24 7-223-0407-223-905

7-223-9405" 4.13 1.65 .59 3.35 13.20 6.30 1.69 .4724 6614 36 7-223-050 7-223-950

6" 5.51 2.05 .71 4.2916.70 7.87

2.24 .7874 904073 7-223-060

7-223-908

7-223-96018.70 9.84 78 7-223-062

8" 6.50 2.40 .79 4.9621.20 10.24

2.56 .7874 9920129 7-223-080

7-223-98023.00 12.20 134 7-223-08225.00 14.17 140 7-223-085

Optional Accessories:

Examples of Application:

ViseSize

BasePart Number

4" 7-223-5405" 7-223-5506" 7-223-5608" 7-223-580

Type 6566

• V-Groove jaw inserts are available• Ideal for all types of milling, grinding, drilling,and tapping operations on vertical andhorizontal CNC machines

• Vises have a modular design and can becombined with other modules

Standard Accessories:• 1 Handle• 1 Clamp

CAT V-FLANGE TOOLING

CATV-FLA

NG

EBISON


Caterpillar V-Flange Tooling Flange Sizes perANSI B5.50-1994• Produced according to AT3 specifications• Made of alloy forged steel for a long, durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

Taper7:24 D D2

H8 D3 D4± .002"

D5± .002"

D6"-.004"

D7-.02" D8 L1 L2 L3 L4

minL5

± .01" L6 L7 L8min L9

40

English Sizes (inches)1.75 .6409 .7205 1.750 2.8457 2.5020 2.2287 .669 2.6929 .217 1.2598 1.6614 .6449 .9843 .8898 1.3858 .0394

Metric Sizes (mm)44.45 16.28 18.3 44.45 72.28 63.55 56.61 17 68.4 5.5 32 42.2 16.38 25 22.6 35.2 1

50

English Sizes (inches)2.75 1.0307 1.122 2.750 4.2209 3.8772 3.5925 1.063 4.0060 .276 1.8504 2.4213 1.0197 1.4843 1.3898 1.3858 .0394

Metric Sizes (mm)69.85 26.18 28.5 69.85 107.21 98.48 91.25 27 101.75 7 47 61.5 25.9 37.7 35.3 35.2 1

Flange Sizes per ANSI B5.50-1994


BISON


D L1 L2 L3 D1 Wt Set Screw HolderBalanced

15000 RPMG 6.3

Balanced20000 RPM

G 2.5inches lbs Thread Part Number Part Number

1/81-3/8 - 13/32

.752.0 - 7-185-002 -

2-1/2 - 9/16 2.2 8-32 x 5/16 7-195-081 7-185-405 7-185-004 -

3/161-3/8 - 13/32

.752.0

10-32 x 5/16 7-195-091- 7-185-006 -

2-1/2 - 9/16 2.2 7-185-407 7-185-008 7-185-2084 - 9/16 2.5 7-185-4074 - -

1/41-3/8 - 13/32

.81252.0

1/4-28 x 1/4 7-195-110- 7-185-012 -

2-1/2 - 25/32 2.2 7-185-409 7-185-014 -4 - 25/32 2.7 7-185-4094 - -

5/161-3/8 - 13/32

.8752.0

5/16-24 x 1/4 7-195-120- 7-185-018 -

2-1/2 - 25/32 2.2 7-185-4115 7-185-020 -4 - 25/32 2.7 7-185-4117 - -

3/81-3/8 - 13/32

12.0

3/8-24 x 25/64 7-195-210- 7-185-024 -

2-1/2 - 25/32 2.5 7-185-412 7-185-026 7-185-2225 - 25/32 3.2 7-185-4122 - -

7/162-1/2 - 7/8

1.252.5

3/8-24 x 25/64 7-195-2107-185-4123 7-185-030 -

4 - 7/8 3.0 7-185-4127 - -

1/21-3/4 - 21/32

1.3752.0

7/16-20 x 15/32 7-195-321- 7-185-034 -

2-5/8 - 7/8 2.5 7-185-413 7-185-036 7-185-2365 - 7/8 3.6 7-185-417 - -

5/81-3/4 - 19/32

1.751.9

9/16-18 x 35/64 7-195-415- 7-185-040 -

3-3/4 - 15/16 3.4 7-185-431 7-185-042 -5-1/2 - 15/16 4.5 7-185-437 - -

3/41-3/4 - 19/32

1.751.8

5/8-18 x 1/2 7-195-513- 7-185-048 -

3-3/4 - 1 3.5 7-185-441 7-185-050 7-185-2505-1/2 - 1 4.5 7-185-447 - -

7/81-3/4 19/32

2.052.0

5/8-18 x 19/32 7-195-517- 7-185-054 -

3-1/2 7/8 25/32 3.5 7-185-450 7-185-056 -4 7/8 1-1/16 3.8 7-185-451 - -

12 1 1

2.3752.0

3/4-16 x 45/64 7-195-618- 7-185-060 -

4 1 1-1/8 4.5 7-185-461 7-185-062 7-185-2626 1 1-1/8 6.9 7-185-465 - -

1-1/44-1/4 1 1-1/8

2.755.8

3/4-16 x 45/64 7-195-6187-185-471 7-185-068 -

4-3/8 1 1-1/8 5.9 7-185-472 - -6 1 1-1/8 8.5 7-185-475 - -

1-1/24-5/8 1 1-1/8

3.147.4

3/4-16 x 25/32 7-195-6217-185-481 - -

6 1 1-1/8 10.2 7-185-485 - -

End Mill Holders CAT 40• Through the spindle coolant capability• End mill socket T.I.R. < .0002"• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11

Set Screw

Type 7636


CATV-FLA

NG

EBISON


D L1 L2 L3 D1 Wt Set Screw HolderBalanced

15000 RPMG 6.3

inches lbs Thread Part Number Part Number

1/41-3/8 13/32

13/166.2

1/4-28x1/4 7-195-110- 7-185-102

2-1/2 - 25/32 6.9 7-185-509 -4 - 25/32 7.4 7-185-5101 -

5/16 2-1/2 - 25/32 7/8 7.0 5/16-24x1/4 7-195-120 - 7-185-108

3/8

1-3/8 - 3/8

1

6.2

3/8-24x25/64 7-195-210

- 7-185-1102-1/2 - 25/32 7.1 7-185-511 -4-1/2 - 25/32 7.8 7-185-512 -6-1/2 - 25/32 8.7 7-185-513 -8 - 25/32 9.7 7-185-514 -

7/162-1/2 - 7/8

1-1/47.1

3/8-24x25/64 7-195-2107-185-516 7-185-120

4-1/2 - 7/8 7.8 7-185-517 -

1/2

1-3/4 - 25/32

1-3/8

6.6

7/16-20x15/32 7-195-321

- 7-185-1242-5/8 - 7/8 7.6 7-185-521 -4-5/8 - 7/8 8.7 7-185-522 -6-5/8 - 7/8 10.5 7-185-523 -8 - 7/8 11.6 7-185-526 -

5/8

1-3/4 - 19/32

1-3/4

6.7

9/16-18x35/64 7-195-415

- 7-185-1343-3/4 - 15/16 8.0 7-185-531 -5-3/4 - 15/16 9.6 7-185-532 -7-3/4 - 15/16 11.8 7-185-533 -

3/4

1-3/4 - 19/32

1-3/4

6.7

5/8-18x1/2 7-195-513

- 7-185-1423-3/4 - 1 8.0 7-185-541 -5-3/4 - 1 9.6 7-185-542 -7-3/4 - 1 11.6 7-185-543 -12 - 1 1-3/8 10.7 5/8-18x15/64 7-195-508 7-185-547 -

7/8

1-3/4 - 19/32

2-3/64

6.7

5/8-18x19/32 7-195-517

- 7-185-1523-3/4 7/8 1-1/16 8.3 7-185-551 -5-3/4 7/8 1-1/16 10.0 7-185-552 -7-3/4 7/8 1-1/16 11.6 7-185-553 -

1

2 - 25/32

2-3/8

6.8

3/4-16x45/64 7-195-618

- 7-185-1604 1 1-1/8 9.4 7-185-561 -6 1 1-1/8 11.8 7-185-562 -8 1 1-1/8 14.3 7-185-563 -12 1 1-1/8 1-5/8 13.4 3/4-16x23/64 7-195-610 7-185-567 -

1-1/4

2 - 25/32

2-3/4

6.8

3/4-16x45/64 7-195-618

- 7-185-1704 1 1-1/8 10.0 7-185-571 -6 1 1-1/8 12.9 7-185-572 -8 1 1-1/8 16.3 7-185-573 -12 1 1-1/8 1-7/8 15.9 3/4-16x23/64 7-195-610 7-185-577 -

1-1/2

2-1/2 1 1

3-9/64

7.0

3/4-16x25/32 7-195-621

- 7-185-1804 1 1-1/8 10.7 7-185-581 -6 1 1-1/8 14.7 7-185-582 -8 1 1-1/8 18.7 7-185-583 -

25-5/8 - 1

3-15/1617.6

1-14x15/16 7-195-8247-185-591 -

7-5/8 1-7/16 1-3/16 24.3 7-185-592 -9-5/8 1-7/16 1-3/16 30.5 7-185-593 -

2-1/2 6 1-7/16 1-3/16 4-1/4 17.8 1-14x7/8 7-195-824 7-185-595 -

End Mill Holders CAT 50• Through the spindle coolant capability• End mill socket T.I.R. < .0002"• Retention knobs sold separately• Draw Bar Threads: CAT 50 1"- 8

Type 7636

See diagram on page 170


BISON


TaperNumber

K

d L1 L2 D SetScrew Key Key

Screw Wt HolderPart

Number

Balanced15000 RPM

G 6.3Part

Numberinches Thread PartNumber L B H Part

NumberPart

Number lbs

40

1 /2 1-3/8 9/16 1-3/8 1/4-28 7-080-005 .36 .25 .25 7-080-105 7-080-150 2 .0 7-186-403 7-186-005

3/41-3/8

11/16 1-3/4 3/8-24 7-080-010 .40 .31 .27 7-080-1107-080-155 2.5 7-186-405 7-186-010

4 4.0 - 7-186-015

12-1/16

11/16 2-1/4 1/2-20 7-080-015 .44 .37 .33 7-080-1157-080-160 3.5 7-186-407 7-186-020

4 5.5 - 7-186-025

1-1/42-1/8

11/16 2-3/4 5/8-18 7-080-020 .56 .50 .39 7-080-1204.2 7-186-409 7-186-030

4 6.9 - 7-186-035

1-1/22.40

15/16 3-3/4 3/4-16 7-080-025 1.03 .62 .52 7-080-1257-080-170 6.0 7-186-411 7-186-040

4 9.3 - 7-186-045

50

1/21-1/2

9/16 1-3/8 1/4-28 7-080-005 .36 .25 .25 7-080-1057-080-150 6.1 7-186-503 -

3-1/2 7.2 7-186-505 -5-1/2 10.0 7-186-507 -

3/4

1-1/2

11/16 1-3/4 3/8-24 7-080-010 .40 .31 .27 7-080-110

7-080-155 7.5 7-186-509 -3-1/2 9.2 7-186-511 -4-1/2 10.2 7-186-512 -5-1/2 11.2 7-186-513 -9 14.5 7-186-514 -

1

2

11/16 2-1/4 1/2-20 7-080-045 .44 .37 .33 7-080-115

7-080-160 8.8 7-186-515 -4 10.8 7-186-517 -6 13.4 7-186-519 -10 18.0 7-186-520 -

1-1/4

1-1/2

11/16 2-3/4 5/8-18 7-080-020 .56 .50 .39 7-080-120

9.3 7-186-521 -3-1/2 11.5 7-186-523 -5-1/2 14.5 7-186-525 -12 25.2 7-186-526 -

1-1/2

2.40

15/16 3-3/4 3/4-16 7-080-025 1.03 .62 .52 7-080-125

7-080-170 10.0 7-186-527 -4 13.8 7-186-529 -6 17.3 7-186-531 -12 28.2 7-186-532 -

22.40

15/16 4-7/8 1-14 7-080-030 1.34 .75 .68 7-080-1307-080-175 12.8 7-186-533 -

4 16.7 7-186-535 -6 22.4 7-186-537 -

2-1/22.40

1-1/8 4-7/8 1-14 7-080-035 1.18 .75 .68 7-080-13513.8 7-186-540 -

4 18.7 7-186-541 -6 25.6 7-186-543 -

Shell End Mill Holders• Shell Mill Pilot T.I.R. < .0002"• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8" - 11

CAT 50 1" - 8

Type 7385


CATV-FLA

NG

EBISON


A B

d d1

L

Stub Arbor Holders• Face is held perpendicular to centerline within 0.0002"• Pilot diameter is sized for precision fit with cutter, and keyed for positive drive• Heavy duty locking right-hand nut and 5 arbor spacers are included: 1/16", 1/8", 1/4", 3/8", and 3/4"• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

TaperNumber

ArborDiameter

dA d1 L B Nut

1/16”Spacer2 Pc

1/8”Spacer1 Pc

1/4”Spacer1 Pc

3/8”Spacer2 Pc

3/4”Spacer1 Pc

Wtlbs

HolderPart

Numberinches Part Number

40 1 4 1.5 7.5 2 7-030-010R 7-020-090 7-020-100 7-020-110 7-020-120 7-020-140 5.3 7-191-41040 1.25 4 1.75 7.75 2 7-030-015R 7-020-175 7-020-185 7-020-195 7-020-205 7-020-225 6.8 7-191-41540 1.5 4 2.125 8.0 2 7-030-020R 7-020-260 7-020-270 7-020-280 7-020-290 7-020-310 8.8 7-191-42050 1 4 1.5 7.5 2 7-030-010R 7-020-090 7-020-100 7-020-110 7-020-120 7-020-140 10.5 7-191-51050 1 6 1.5 9.5 2 7-030-010R 7-020-090 7-020-100 7-020-110 7-020-120 7-020-140 11.5 7-191-51550 1.25 4 1.75 7.75 2 7-030-015R 7-020-175 7-020-185 7-020-195 7-020-205 7-020-225 11.9 7-191-52050 1.25 6 1.75 9.75 2 7-030-015R 7-020-175 7-020-185 7-020-195 7-020-205 7-020-225 13.2 7-191-52550 1.5 4 2.125 8.0 2 7-030-020R 7-020-260 7-020-270 7-020-280 7-020-290 7-020-310 13.8 7-191-53050 1.5 6 2.125 10.0 2 7-030-020R 7-020-260 7-020-270 7-020-280 7-020-290 7-020-310 16.0 7-191-535

Type 7318


BISON


TaperNumber

K

ArborDiameter

dA B Holder

ScrewSize

Cap DriveKey

HexKey Wt

lbs

HolderPart


40 5/8 4 1.77 M8 x 1.25 7-192-905 7-192-805 6-999-586 3.1 7-192-40540 1 4 1.77 M10 x 1.5 7-192-910 7-192-810 6-999-588 3.9 7-192-41040 1-1/4 4 1.77 M10 x 1.5 7-192-915 7-192-815 6-999-588 4.4 7-192-41550 1 4 1.77 M10 x 1.5 7-192-910 7-192-810 6-999-588 8.4 7-192-51050 1 6 3 M10 x 1.5 7-192-935 7-192-835 6-999-588 8.8 7-192-51550 1-1/4 4 1.77 M10 x 1.5 7-192-915 7-192-815 6-999-588 8.4 7-192-52050 1-1/4 6 3 M10 x 1.5 7-192-945 7-192-845 6-999-588 9.3 7-192-525

Please refer to ourTMX HSS Cutting andMeasuring Tool catalogand www.toolmex.comfor a full selection ofSlitting Saws

Semi Flush Slitting Saw Holders• Face is held perpendicular to centerline within 0.0002"• Designed for slitting saws up to 5/16" thick• Use a Stub Arbor Holder for wider cutters• Pilot diameter is sized for precision fit with cutter and is keyed for positive drive• Semi-flush nose cap gets in tight areas• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

Type 7374


CATV-FLA

NG

EBISON


Double Angle Collet Chucks• Through the spindle coolant capability• Collet seat taper T.I.R. < .0002"• Retention knobs sold separately• Wrenches sold separately

TaperNumber

ColletSize

ColletRange

L D Nut Wrench ChuckPart

Number

Balanced15000 RPM

G 6.3Part Numberinches Part Number

40

DA 100 1/8-25/64 3.50 1.09 7-193-805 7-193-905 7-193-250 -DA 200 1/8-9/16 3.00 107 7-193-810 7-193-910 7-193-150 -

DA 180

1/8-3/4

2.751.54

7-193-818 7-193-918

7-193-415 7-193-0154.00 7-193-424 7-193-024

50 DA 1804.00

1.547-193-524 -

6.00 7-193-526 -8.00 7-193-528 -

Collet Series No of Pieces Range Part Number

DA 10011 1/4"-9/16" by 1/32" 7-167-07021 1/4"-9/16" by 1/64" 7-167-075

DA 2009 1/8"-3/8" by 1/32" 7-167-27017 1/8"-3/8" by 1/64" 7-167-275

DA 3005 1/8"-1/4" by 1/32" 7-167-3409 1/8"-1/4" by 1/64" 7-167-344

DA 18017 1/4"-3/4" by 1/32" 7-167-19233 1/4"-3/4" by 1/64" 7-167-194

NominalSize

ColletRange

DA-180Part Number

3 3-2 7-167-5036 6-5 7-167-5067 7-6 7-167-5078 8-7 7-167-50810 10-9 7-167-51011 11-10 7-167-51112 12-11 7-167-51214 14-13 7-167-514

Collets and Collet Sets• Our full selection of collets can be found on pages 203-215

EnglishMetric

• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

Type 7652


BISON


Type 7614

TaperNumber

ColletNumber

ColletClampingRange

d L1Nut Wrench Wt

lbs

ColletChuckPart

Number

Balanced15000 RPM

G 6.3Part

Number

Balanced20000 RPM

G 2.5Part

NumberPart Number

40

75 1/8-3/4 2-1/8 3 7-180-901 7-188-932 3.5 7-180-401 - -

100 3/32-1 2-1/23

7-180-9100 7-180-9303.7 7-180-403 7-180-010 7-180-110

4 4.0 7-180-404 7-180-015 -6 4.8 7-180-406 - -

50

75 1/8-3/4 2-1/8 3 7-180-901 7-188-932 8.4 7-180-501 - -

100 3/32-1 2-1/2

3-1/8

7-180-9100 7-180-930

8.2 7-180-503 - 7-180-1083-1/2 8.7 7-180-504 - 7-180-1045-1/2 10.0 7-180-505 - -7-1/2 11.2 7-180-507 - -

150 1/2-1-1/2 3-1/23

7-180-9150 7-180-9358.0 7-180-513 - -

3-1/2 9.5 7-180-514 - -5-1/2 11.5 7-180-517 - -

NutWrench

TG Collet Chucks• Through the spindle coolant capability • Collet seat taper T.I.R. < .0002"• Retention knobs sold separately • Wrenches sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8


CATV-FLA

NG

EBISON


TaperNumber

ColletSize

No. ofPiecesin Set

Collet SizesCollet Chuck

PartNumber

SetPart

Number

40

TG100

17 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 17-180-403 7-180-4033

7-180-404 7-180-4043

323/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2,

17/32, 9/16, 19/32, 5/8, 21/32, 11/16, 23/32, 3/4, 25/32, 13/16,27/32, 7/8, 29/32, 15/16, 31/32, 1

7-180-403 7-180-4038

7-180-404 7-180-4048

50

17 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 17-180-503 7-180-5033

7-180-504 7-180-5043

323/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2,

17/32, 9/16, 19/32, 5/8, 21/32, 11/16, 23/32, 3/4, 25/32, 13/16,27/32, 7/8, 29/32, 15/16, 31/32, 1

7-180-503 7-180-5038

7-180-504 7-180-5048

TG Collet Chuck Sets• All collet chucks come with a nut• Wrenches sold separately

Each TG Collet Chuck Set includes:• Collet chuck• Collets• 1 Wrench• 1 Nut• Wooden case


BISON


ER Collet Chucks• Through the spindle coolant capability• Wrenches sold separately

TaperNumber

ColletNumber

ColletClampRange

D H Wtlbs

Nut Wrench

ColletChuck

PartNumber

Balanced15000 RPM

G 6.3Part

Number

Balanced20000 RPM

G 2.5Part

NumberPart Number

40

ER 11 1/32-1/4 .732.5 2.2

7-188-811 7-188-911- 7-188-003 -

4 2.6 - 7-188-006 -

ER 16 1/8-7/16 1.102.5 2.8

7-178-816 7-178-9167-188-415 7-188-009 7-188-109

3 2.9 7-188-417 7-188-012 -4 3.2 7-188-418 7-188-015 7-188-115

ER 20 1/8-1/2 1.382.5 3.4

7-188-820 7-188-9167-188-420 7-188-018 -

4 3.6 7-188-422 7-188-021 -

ER 25 1/8-5/8 1.652.5 4.0

7-188-825 7-188-9257-188-424 7-188-024 -

4 4.5 7-188-426 7-188-025 -

ER 32 1/8-3/4

1.42* 1.14 1.55 7-188-833 7-188-933 - - 7-188-130

1.97

2.5 6.2

7-188-832 7-188-932

7-188-430 7-188-030 -3 6.3 7-188-431 7-188-033 7-188-133*4 6.8 7-188-432 7-188-036 -5 3.7 - 7-188-039 -

ER 40 1/8-1 2.4

2.5 11.0

7-188-840 7-180-930

7-188-443 7-188-041 7-188-141Q4 12.0 7-188-440 7-188-044 7-188-1445 4.4 - 7-188-047 -6 5.15 7-188-446 - -

50

ER 16 1/8-7/16 1 .30 6 8 .0 7-178-816 7-178-916 7 -188-510 - -ER 20 1/8-1/2 1 .38 4 7 .7 7-188-820 - 7 -188-520 - -ER 25 1/8-5/8 1 .65 6 8 .4 7-188-825 7-188-925 7 -188-525 - -ER 32 1/8-3/4 1 .97 6 9 .1 7-188-832 7-188-932 7 -188-532 7-188-210** -

ER 40 1/8-1 2.42.5 15.9

7-188-840 7-180-9307-188-543 - -

4 16.9 7-188-545 - -

ER 20 thru 40Nut and Wrench

Type 7607

ER 11 and 16Nut and Wrench

** Balanced 12000 RPM G6.3for ER 32 only

StubbyPart Number:7-188-133

StandardProjection

* Stubby, see picture above


CATV-FLA

NG

EBISON


TaperNumber

ColletNumber

ColletClampRange

D H Wtlbs

Nut Wrench ColletChuck

Part Number

40 ER 25 1/8-5/8 1.652.5 4.0

7-188-825 7-188-9257-188-424D

4 4.5 7-188-426D

ER Collet Chuckswith Through the Flange Coolant Capability AD + B

Type 7607 AD + B

TaperNumber

ColletSize

No. ofPcs in Set Collet Sizes

Collet ChuckPart

Number

SetPart

Number

40

ER 16 9 1/8, 3/16, 1/4, 5/16, 3/87-188-415 7-188-41907-188-417 7-188-4193

ER 32 131/8, 3/16, 1/4, 5/16, 3/8, 7/16,1/2, 9/16, 5/8, 11/16, 3/4

7-188-431 7-188-4387-188-432 7-188-439

ER 40 171/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16,5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1

7-188-440 7-188-44950 7-188-545 7-188-549

ER Collet Chuck Sets

Retention Knobs• Through the spindle coolant capability

TaperNumber

ThreadD1 D D2 D3 D4 L I1 I2 I3 S Part

NumberCAT 40 5/8"-11UNC .898 .492 .280 .744 1.496 .640 .437 .118 .748 7-189-905CAT 50 1" - 8 1.400 .823 .500 1.146 2.244 1.000 .700 .197 1.185 7-189-950HASS 40* 5/8"-11UNC 1.280 .394 .118 .591 2.299 1.260 .984 .236 .748 7-189-941

Type 9886


BISON


TaperNumber

K

Jacobs TaperK1 L L1 L2 Wt

lbsPart

Number

40

2 5.062

1.50

2.375 2.7 7-181-4023 5.406 2.719 3.1 7-181-4034 5.844 3.156 3.5 7-181-4046 5.187 2.500 2.8 7-181-40633 5.187 2.500 2.8 7-181-433

50

3 6.718

1.50

2.719 6.2 7-181-5034 7.157 3.156 6.6 7-181-5045 7.375 3.375 7.2 7-181-5056 6.500 2.500 5.9 7-181-50633 6.500 2.500 5.9 7-181-533

Face Mill Holders• Shell Mill Pilot T.I.R. < 0.0002"• Holders are provided with four mounting holes

with 5/8"-11 thread on a 4" bolt circle diameterto hold 8" or larger Face Mill Cutters

TaperNumber

ArborDiameter

D2L1 L2 L3 Drive Key

L4 D1 Wtlbs

HolderPart Number

50

2 7.3 2.4 15/16 3/44.88

13.2 7-182-5022 8.9 4 15/16 3/4 15.4 7-182-504

2-1/2 7.5 2.4 1-1/8 15.06

14.0 7-182-5122-1/2 9.1 4 1-1/8 1 18.5 7-182-514

Jacobs Taper Holders• Jacobs Taper T.I.R. < 0.0002"• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

See page 182 forprecision drill chucks

Type 7382

• Retention knobs sold separately• Draw Bar Threads: CAT 50 1" - 8

Type 5357


CATV-FLA

NG

EBISON


MT Adapters• Produced according to AT3 specifications• Made of alloy forged steel for long, durable service life• Morse Taper Seat T.I.R. < 0.0002"• Hardened to RC 56-60 and ground to ensure maximum accuracy• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

TaperNumber

K

MTHoleK1

D L A Wtlbs

PartNumber

402 1-1/4 5-9/16 2 2.1 7-183-4023 1-3/4 6-9/16 3 2.4 7-183-4034 2 7-1/16 3-1/2 3.4 7-183-404

50

2 1-1/4 6 2 6.2 7-183-5023 1-5/8 6-1/2 2-1/2 7.0 7-183-5034 2 7-3/8 3-3/8 7.5 7-183-5045 2-3/4 8 4 8.0 7-183-505

CAT 50 to CAT 40 Adapters• Produced according to AT3 specifications• Made of alloy forged steel for long, durable service life• Morse Taper Seat T.I.R. < 0.0002"• Each Adapter is provided with the draw bar screw with the thread 5/8" - 11• Retention knobs sold separately• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

TaperNumber

K

TaperNumberHole K1

A D d Wtlbs

PartNumber

50 40 3.150 3.46 .65 11 7-184-504

Type 1691

Type 1684


BISON


Type 7655

Precision Ball Bearing Keyless Drill ChucksIntegral CAT V-Flange• CAT shanks are produced according to AT3 specification• Made of alloy forged steel for a long, durable service life• Integral shank design is more compact than a combined

drill chuck and arbor for greater accuracy and rigidity• Keyless operations• Self-tightening, clockwise rotation only• Maximum T.I.R. 0.0015"• Draw Bar Threads: CAT 40 5/8"-11 and CAT 50 1"- 8

TaperNumber

K

Capacity d1 D A WrenchPart

Number

Wtlbs

PartNumberinches mm inches

401/32-1/2 1-13 2 4.13

7-188-932K

4.40 7-187-4331/8-5/8 3-16 2-1/4 5.12 5.28 7-187-435

501/32-1/2 1-13 2 4.13 10.12 7-187-5631/8-5/8 3-16 2 1/4 4.33 11.44 7-187-565

Wrench

L

K

DDd

L1

ChuckModel

Capacity d MountK

D L L1 Wt PartNumberinches mm inches lbs

Precision Chucks 0.005 T.I.R.6/J1 0-1/4 0.3-6 1JT 1.32 2.45 2.68 .66 7-051-06413/J2

1/32-1/2 1-132JT

2 3.8 4.3 2.27-051-135

13/J33 33JT 7-051-13713/J6 6JT 7-051-13816/J6

1/8-5/8 3-166JT

2.34.06 4.65 3.1 7-051-168

16/J3 3JT 4.33 4.9 3.3 7-051-169NC Quality Chucks 0.0015 T.I.R.

13/J21/32-1/2 1-13

2J2 3.8 4.3 2.2

7-051-33513/J33 33J 7-051-33713/J6 6J 7-051-33816/J6

1/8-5/8 3-166J

2.34.06 4.65 3.1 7-051-368

16/J3 3J 4.33 4.9 3.3 7-051-369

Heavy Duty• Keyless Drill Chucks are precision devices designed for high accuracy applications on either conventional or

CNC machines in drilling, boring, and counterboring operations• Designed to be tightened and released by hand• Self-tightening feature


CATV-FLA

NG

EBISON


Ultra Precision Milling Chucks and ColletsHigh Torque, CAT ShankT.I.R. 0.0002" (0.005mm)• Rigid with high chucking torque• Designed for smooth milling without vibrations or tool slipping• High precision collets ensure uniform gripping around the cutting tool shank• Balanced to 15000 RPM• Shank is produced according to AT3 specifications• Made of alloy forged steel for long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy

Type 7694

Taper d D L L1 Wtlbs

PartNumber

CT403/4 2.36 6.45 3.75 4.23 7-320-0051 2.56 6.69 4.00 4.70 7-320-008

CT50 1 2.56 7.76 3.75 9.00 7-320-108

Taper d D L L1 Wtlbs

PartNumber

BT403/4 2.36 6.118 3.543 4.0 7-321-0051 2.56 6.118 3.543 4.4 7-321-008

Ultra Precision Milling Chucks and ColletsHigh Torque, BT 40 ShankT.I.R. 0.0002" (0.005mm)

Type 7696

TAP HOLDERS

BISON


BT Taper CAT Taper

Integral Shank Tension/Compression Tap Holderswith CAT and BT Tapers, Series Number 32,000, Quick Change• Compatible with BILZ System• 11 Piece Tap Holder and Adapter Sets available,see next page

• This product does not have through spindlecoolant capability

TaperNumber

Dinches

dmm

TapCapacity

ChuckSize

Tap ColletNumber

Tap ShankDiameter

TensionCompression

BT Taper CAT TaperI Part Number I Part Number

401.30 19

M1.6-M140-9/16"1/8" NPT

#1 19/11- 0.110-0.472 0.3543 2.6587-336-419

2.9727-338-419

50 - 7-338-519

401.97 31

M7-M205/16"-7/8"

1/8"-1/2" NPT#2 31/12- 0.236-0.866 0.5906

3.543 7-336-4313.397

7-338-431

50 3.976 7-336-531 7-338-531

402.83 48

M12-M339/16"-1-3/8"3/4"-1" NPT

#3 48/13- 0.354-1.417 0.94494.606 7-336-448 5.394 7-338-448

50 4.921 - 5.197 7-338-548

50 3.86 60M36-M42

1-1/2”-1-7/8”1-1/”-1-1/2” NPT

#4 60/14- 0.630-1.417 1.0236 5.787 - 5.787 7-338-560

TAP HOLDERS

TAP

HO

LDERS

BISON


BT Taper CAT Taper

Integral Shank Rigid Tap Holderswith CAT and BT Tapers, Series Number 21,080, Quick Change• Compatible with BILZ System• Through spindle coolant capability• Tap Holder and Adapter sets available

TaperNumber

Dinches

dmm

TapCapacity

ChuckSize

TapColletNumber

TapShank

Diameter

BTTaper

CATTaper

I Part Number I Part Number

401.30 19

M1.6-M140-9/16"1/8" NPT

#1 19/11- 0.110-0.4722.638 7-337-419 2.323 7-339-419

50 3.071 7-337-519 2.953 7-339-519

401.97 31

M7-M205/16"-7/8"

1/8"-1/2" NPT#2 31/12- 0.236-0.866

3.543 7-337-431 3.386 7-339-431

50 3.976 7-337-531 3.858 7-339-531

402.83 48

M12-M339/16"-1-3/8"3/4"-1" NPT

#3 48/13- 0.354-1.4174.606 -

4.8037-339-448

50 4.921 7-337-548 7-339-548

TaperNumber

Tap Adapters Tap Holder SetThread Part Number

CAT 40

#6 7-340-1036

7-339-419 7-339-719

#8 7-340-1041#10 7-340-1048#12 7-340-10541/4 7-340-10635/16 7-340-10793/8 7-340-10957/16 7-340-11111/2 7-340-11279/16 7-340-1142

11 Piece Tap Holder and Tap Adapter Set

TAP HOLDERS

BISON


d

D

f

ba

c

Quick Change Positive Drive Tap AdaptersTap Shank ANSI B94.9-1999

TapSize Size

Tap ShankDiameter

f

DriveSquareSize

a b c d DType Part

Number

inches mm inches mm#6 M1.6-M3.5

#1

0.141 0.110

21.5 7 11 19 30

19/11-4036 7-340-1036#8 M4 0.168 0.131 19/11-4041 7-340-1041#10 M4.5, M5 0.194 0.152 19/11-4048 7-340-1048#12 - 0.220 0.165 19/11-4054 7-340-10541/4 M6, M6.3 0.255 0.191 19/11-4063 7-340-10635/16 M7, M8 0.318 0.238 19/11-4079 7-340-10793/8 M10 0.381 0.286 19/11-4095 7-340-1095

1/8 NPT(LS)* - 0.437 0.328 19/11-4097 7-340-10971/8 NPT(SS)** - 0.313 0.234 19/11-4098 7-340-1098

7/16 M11 0.323 0.242 19/11-4111 7-340-11111/2 M12, M12.5 0.367 0.275 19/11-4127 7-340-11279/16 M14 0.429 0.322 19/11-4142 7-340-11425/16 M7, M8

#2

0.318 0.238

35

9 19

31 46

31/12-4079 7-340-20793/8 M10 0.381 0.286 9 19 31/12-4095 7-340-20957/16 M11 0.323 0.242 9 19 31/12-4111 7-340-21111/2 M12, M12.5 0.367 0.275 9 19 31/12-4127 7-340-21279/16 M14 0.429 0.322 10 9 31/12-4142 7-340-21425/8 M16 0.480 0.360 9 19 31/12-4158 7-340-215811/16 M18 0.542 0.406 9 19 31/12-4174 7-340-21743/4 - 0.590 0.442 10 9 31/12-4190 7-340-219013/16 M20 0.652 0.489 9 19 31/12-4205 7-340-22057/8 UNF - 0.697 0.523 10 9 31/12-4222 7-340-22221/4 NPT - 0.562 0.421 10 9 31/12-4131C 7-340-21313/8 NPT - 0.700 0.531 10 9 31/12-4166C 7-340-21661/2 NPT - 0.6875 0.515 10 9 31/12-4209C 7-340-22091/2 M12, M12.5

#3

0.367 0.275

55.5

10 17

48 48

48/13-4127 7-340-31279/16 M14 0.429 0.322 10 17 48/13-4142 7-340-31425/8 M16 0.480 0.360 10 17 48/13-4158 7-340-3158

3/8 NPT - 0.700 0.531 10 7 48/13-4166C 7-340-316611/16 M18 0.542 0.406 10 27 48/13-4174 7-340-31743/4 - 0.590 0.442 10 23 48/13-4190 7-340-319013/16 M20 0.652 0.489 10 27 48/13-4206 7-340-32061/2 NPT - 0.6875 0.515 10 7 48/13-4209C 7-340-32097/8 M22 0.697 0.523 10 27 48/13-4222 7-340-322215/16 M24 0.760 0.570 12 30 48/13-4238 7-340-32381 M25 0.800 0.600 12 27 48/13-4254 7-340-3254

3/4 NPT - 0.9063 0.679 13 17 48/13-4264C 7-340-32641-1/8 M27 0.896 0.672 12 30 48/13-4286 7-340-32861-1/4 M30 1.021 0.766 12 27 48/13-4317 7-340-33171 NPT - 1.1250 0.843 13 17 48/13-4332C 7-340-33321-3/8 M33 1.108 0.831 63 12 27 60 83 48/13-4349 7-340-33491-1/2 M36

#4

1.233 0.925

63 38 4 60 83

60/14-4381C 7-340-43811-5/8 M39 1.305 0.925 60/14-4412C 7-340-44121-3/4 M42 1.430 1.072 60/14-4444C 7-340-44441-7/8 - 1.519 1.139 60/14-4476C 7-340-4476

1-1/4 NPT - 1.3125 0.984 60/14-4419C 7-340-44851-1/2 NPT - 1.5000 1.125 60/14-4478C 7-340-4490

* Long Shank** Short Shank

TAP HOLDERS

TAP

HO

LDERS

BISON


Quick Change Torque Control Tap AdaptersTap Shank ANSI B94.9-1999

d

D

f

ba

c

TapSize Size

TapShank

Diameterf

SquareDriveSize

a b c d DType Part

Number

inches mm inches mm#6 M1.6-M3.5

#1

0.141 0.110

21.5 25 8 19 32

19/1-4036 7-341-1036#8 M4 0.168 0.131 19/1-4041 7-341-1041#10 M4.5,M5 0.194 0.152 19/1-4048 7-341-1048#12 - 0.220 0.165 19/1-4054 7-341-10541/4 M6, M6.3 0.255 0.191 19/1-4063 7-341-10635/16 M7, M8 0.318 0.238 19/1-4079 7-341-10793/8 M10 0.381 0.286 19/1-4095 7-341-1095

1/8 NPT(LS)* - 0.437 0.328 19/1-4097 7-341-10971/8 NPT(SS)** - 0.313 0.234 19/1-4098 7-341-1098

7/16 M11 0.323 0.242 19/1-4111 7-341-11111/2 M12, M12.5 0.367 0.275 19/1-4127 7-341-11279/16 M14 0.429 0.322 19/1-4142 7-341-11425/16 M7, M8

#2

0.318 0.238

35

33 4

31 50

31/2-4079 7-341-20793/8 M10 0.381 0.286 33 4 31/2-4095 7-341-20957/16 M11 0.323 0.242 33 4 31/2-4111 7-341-21111/2 M12, M12.5 0.367 0.275 33 4 31/2-4127 7-341-21279/16 M14 0.429 0.322 34 15 31/2-4142 7-341-21425/8 M16 0.480 0.360 33 4 31/2-4158 7-341-215811/16 M18 0.542 0.406 33 4 31/2-4174 7-341-21743/4 - 0.590 0.442 34 15 31/2-4190 7-341-219013/16 M20 0.652 0.489 33 4 31/2-4205 7-341-22057/8 M22 0.697 0.523 33 4 31/2-4222 7-341-2222

1/4 NPT - 0.562 0.421 33 4 31/2-4131C 7-341-21353/8 NPT - 0.700 0.531 34 15 31/2-4166C 7-341-21681/2 NPT - 0.6875 0.515 33 4 31/2-4209C 7-341-22121/2 M12, M12.5

#3

0.367 0.275

55.5

42 1

48 72

48/3-4127 7-341-31279/16 M14 0.429 0.322 42 14 48/3-4142 7-341-31425/8 M16 0.480 0.360 42 14 48/3-4158 7-341-3158

3/8 NPT - 0.700 0.531 43 24 48/3-4166C 7-341-316611/16 M18 0.542 0.406 42 4 48/3-4174 7-341-31743/4 - 0.590 0.442 42 8 48/3-4190 7-341-319013/16 M20 0.652 0.489 42 1 48/3-4206 7-341-32061/2 NPT - 0.6875 0.515 43 24 48/3-4209C 7-341-32097/8 M22 0.697 0.523 43 4 48/3-4222 7-341-322215/16 M24 0.760 0.570 44 4 48/3-4238 7-341-32381 M25 0.800 0.600 44 4 48/3-4254 7-341-3254

3/4 NPT - 0.9063 0.679 45 14 48/3-4264C 7-341-32641-1/8 M27 0.896 0.672 44 1 48/3-4286 7-341-32861-1/4 M30 1.021 0.766 44 1 48/3-4317 7-341-33171 NPT - 1.1250 0.843 45 14 48/3-4332C 7-341-33321-3/8 M33 1.108 0.831 44 1 48/3-4349 7-341-3349

* Long Shank** Short Shank

TAP HOLDERS

BISON


Tension and Compression Tapping Chucks withCylindrical Shank• Provides axial float• Adjustable entry force

ShankSizeD1

Size d D I L TapCapacity

PartNumber

1.00#1 .748 1.30 1.60 1.95 #6-9/16" 7-343-010#2 1.220 2.00 2.50 2.00 5/16"-1/2 NPT 7-343-020

Rigid Tapping Chucks with Cylindrical Shank• Coolant through spindle capability• No float for synchronous tapping

ShankSizeD1

Size d D I L TapCapacity Compensation Part

Number

1.00#1 .748 1.50 1.76 1.95 #6-9/16" .35 .35 7-344-010#2 1.220 2.17 2.52 2.00 5/16"-1/2 NPT .59 .59 7-344-020

1.50#2 1.220 2.17 2.52 3.50 5/16"-1/2 NPT .59 .59 7-344-030#3 1.890 3.09 3.85 3.50 1/2"-1-3/8" .94 .94 7-344-040

TAP HOLDERS

TAP

HO

LDERS

BISON


Integral Shank Tension/Compression Tap Holderwith ER 32 Collet Shank and ER 16 Collet Chuck• Designed for use on CNC or conventional milling machines in any ER 32 collet chuck• Uses inch or metric RH or LH high performance machine taps• 10mm (.394") tension/compression stroke• Tap holder accepts any ER 16 collet• Hardened to RC 56-60 and ground to ensure maximum accuracy• Through spindle coolant capability

Our completeselection ofER Collets andER Collet Sets canbe found onpages 203 - 215

Tap Holder mounted inER 32 collet chuck

Metric Collets ER 16 Inch Collets ER 16

NominalSizemm

ClampingRangemm

ClampingRangeinches

PartNumber

NominalSizeinches

Part Number

3 3-2 .078-.118 7-171-553 5/32 7-171-16304 4-3 .118-.157 7-171-554 3/16 7-171-1645 5-4 .157-.196 7-171-555 7/32 7-171-1656 6-5 .196-.236 7-171-556 1/4 7-171-1667 7-6 .236-.275 7-171-557 9/32 7-171-16638 8-7 .275-.314 7-171-558 5/16 7-171-1679 9-8 .314-.354 7-171-559 11/32 7-171-16810 10-9 .354-.393 7-171-560 3/8 7-171-169

Shank TapCapacity

ColletSize

Wtlbs Compression Tension Nut

Part NumberWrench

Part NumberHex Key

Part NumberHolder

Part Number

ER 32#0-1/2"M3-M12

ER 16 0.8 .394" (10mm) 7-178-816 7-178-916 6-999-584 7-301-320

Tap Holder

Individual ER 16 Collets

Type 5424

BT FLANGE

BISON


MT Adapters• Produced according to AT3 specifications• Made of alloy forged steel for long, durable service life• Morse Taper Seat T.I.R. < .0002"

TaperNumber

K

MTHoleK1

D A Wtlbs

PartNumber

BT 30 1 1 1.97 0.66 7-173-301

BT 40

1 1 1.75 2.2 7-173-4012 1.25 2 2.4 7-173-4023 1.5625 3 2.7 7-173-4034 1.875 3.5625 2.9 7-173-404

BT 50

2 1.25 1.75 8.1 7-173-5023 1.5625 1.75 8.2 7-173-5034 1.875 3 8.4 7-173-5045 2.5 4.125 8.8 7-173-505

Type 1661

Type 5377

• Hardened to RC 56-60 and ground to ensuremaximum accuracy

• Retention knobs are sold separately

• Draw Bar Threads: BT 30 M12 x 1.75BT 40 M16 x 2BT 50 M24 x 3

Jacobs Taper Holders• Produced according to AT3 specifications• Made of alloy forged steel for long durableservice life• Jacobs Taper T.I.R. < .0002"• Hardened to RC 56-60 and ground to ensuremaximum accuracy• Retention knobs are sold separately


TaperNumber

K

JacobsTaperK1

L1 Wtlbs

PartNumber

BT 302

1.01.35 7-175-302

3 1.35 7-175-30333 1.35 7-175-333

BT 40

2

1.75

3.1 7-175-4023 3.2 7-175-4034 3.5 7-175-4046 3.2 7-175-40633 3.1 7-175-433

BT 50

3 8.6 7-175-5034 9.4 7-175-5046 8.8 7-175-50633 8.7 7-175-533

BT FLANGE

BTFLA

NG

EBISON


TaperNumber

d L D C B Set Screw HolderPart

Number

Balanced15000 RPMG6.3Part

Numberinches Qty Thread Part Number

BT 30

3/16 .1875 2.50 .68 .44 - 1 10-32 - 7-179-302 -1/4 .250 2.50 .875 .44 - 1 1/4-28 - 7-179-304 -3/8 .375 2.50 1.00 .75 - 1 3/8-24 - 7-179-311 -1/2 .500 2.50 1.25 .88 - 1 3/8-24 - 7-179-321 -5/8 .625 3.00 1.50 .94 - 1 9/16-18 - 7-179-331 -3/4 .750 3.00 1.75 1.00 - 1 5/8-18 - 7-179-341 -7/8 .875 4.00 2.00 1.00 1.81 2 5/8-28 - 7-179-351 -1 1.000 4.00 2.00 1.12 2.12 2 3/4-16 - 7-179-362 -

BT 40

3/16 .1875 2.50 .78 .56 - 11/4-28 x 1/4 7-195-110

7-179-402 7-179-0021/4 .250 2.50 .78 .56 - 1 7-179-404 7-179-004

5/16 .3125 2.50 .87 .72 - 1 5/16-24 x 1/4 7-195-120 7-179-407 7-179-007

3/8 .3752.50

1.12 .75 - 1 3/8-24 x 25/64 7-195-2107-179-411 7-179-011

4.00 7-179-415 -

1/2 .5002.50

1.50 .88 - 1 7/16-20 x 15/32 7-195-3017-179-421 7-179-021

4.00 7-179-425 -

5/8 .6252.50

1.62 .94 - 1 9/16-18 x 15/32 7-195-4127-179-431 7-179-031

4.00 7-179-435 -

3/4 .7502.50

1.75 1.00 - 1 5/8-18 x 33/64 7-195-5137-179-441 7-179-041

4.00 7-179-445 -7/8 .875 3.50 2.17 1.00 1.81 2 5/8-18 x 19/32 7-195-517 7-179-451 7-179-051

1 1.0003.50

2.381.00 2.00

2 3/4-16 x 45/64 7-195-6187-179-461 7-179-061

5.00 1.12 2.12 7-179-465 -1-1/4 1.250 4.00 2.69 1.00 - 2 3/4-16 x 45/64 7-195-618 7-179-475 -

BT 50

3/8 .375 3.00 1.12 .75 - 1 3/8-24 x 25/64 7-195-210 7-179-511 -1/2 .500 3.00 1.50 .88 - 1 7/16-20 x 15/32 7-195-301 7-179-521 -5/8 .625 3.00 1.62 .94 - 1 9/16-18 x 15/32 7-195-412 7-179-531 -3/4 .750 3.00 1.75 1.00 - 1 5/8-18 x 33/64 7-195-513 7-179-541 -1 1.000 4.00 2.48 1.00 2.00 2

3/4-16 x 45/64 7-195-6187-179-561 -

1-1/4 1.250 4.00 2.69 1.00 2.00 2 7-179-571 -1-1/2 1.500 4.00 2.88 1.00 2.00 2 3/4-16 x 25/32 7-195-621 7-179-581 -

2 2.000 5.00 3.62 1.38 2.88 2 1-14 x 15/16 7-195-824 7-179-591 -

Type 7624


End Mill Holders• Produced according to AT3 specifications• Made of alloy forged steel for long durable service life• Jacobs Taper T.I.R. < .0002"• End Mill Socket T.I.R. < 0.0002"• Hardened to RC 52-56 and ground to ensuremaximum accuracy

• Through spindle coolant capability

BT FLANGE

BISON


Type 7388

TaperNumber

d D L L1 Arbor Screw Key Key Screw HolderPart

Numberinches Thread Part Number L B H Part Number Part Number

BT 303/4 .750 2.00 .687 3/8-24 - - .31 - - - 7-176-3051 1.000 2.00 .687 1/2-20 - - .38 - - - 7-176-307

BT 40

1/2 1.18 1.75 .56 1/4-28 7-080-005 .61 .25 .28 7-080-205 7-080-155 7-176-4033/4 1.50 2.00 .69 3/8-24 7-080-010 .61 .31 .31 7-080-210 7-080-155 7-176-4051 1.73 2.00 .69 1/2-20 7-080-015 .80 .37 .31 7-080-215 7-080-160 7-176-407

1-1/4 2.08 2.25 .69 5/8-18 7-080-020 .94 .50 .34 7-080-220 7-080-165 7-176-4091-1/2 2.48 2.25 .92 3/4-16 7-080-025 1.08 .62 .41 7-080-225 7-080-165 7-176-411

BT 50

3/4 1.5 2.25 .69 3/8-24 7-080-010 .61 .31 .31 7-080-210 7-080-155 7-176-5093/4 1.5 6.00 .69 3/8-24 7-080-010 .61 .31 .31 7-080-210 7-080-155 7-176-5111 1.73 2.00 .69 1/2-20 7-080-015 .80 .37 .31 7-080-215 7-080-160 7-176-5151 1.73 4.00 .69 1/2-20 7-080-015 .80 .37 .31 7-080-215 7-080-160 7-176-5171 1.73 6.00 .69 1/2-20 7-080-015 .80 .37 .31 7-080-215 7-080-160 7-176-519

1-1/4 2.08 2.50 .69 5/8-18 7-080-020 .94 .50 .34 7-080-220 7-080-165 7-176-5211-1/4 2.08 4.00 .69 5/8-18 7-080-020 .94 .50 .34 7-080-220 7-080-165 7-176-5231-1/4 2.08 6.00 .69 5/8-18 7-080-020 .94 .50 .34 7-080-220 7-080-165 7-176-5251-1/2 2.48 2.50 .92 3/4-16 7-080-025 1.08 .62 .41 7-080-225 7-080-165 7-176-5271-1/2 2.48 4.00 .92 3/4-16 7-080-025 1.08 .62 .41 7-080-225 7-080-165 7-176-5291-1/2 2.48 6.00 .92 3/4-16 7-080-025 1.08 .62 .41 7-080-225 7-080-165 7-176-531

2 3.07 2.50 .94 1-14 7-080-030 1.28 .75 .44 7-080-235 7-080-170 7-176-5332 3.07 4.00 .94 1-14 7-080-030 1.28 .75 .44 7-080-235 7-080-170 7-176-536

Shell End Mill Holders• Produced according to AT3 specifications• Made of alloy forged steel for along durable service life

• Hardened to RC 52-56 and groundto ensure maximum accuracy• Shell End Mill Pilot T.I.R. < 0.0002"• Through spindle coolant capability


BT FLANGE

BTFLA

NG

EBISON


TaperNumber

ColletNumber

Collet Range L D Nut Wrench ChuckPart


BT 30 ER 16 .019 to .4062.36

1.26

7-178-816 7-178-916

7-178-3164.00 7-178-317

BT 40 ER 16 .031 to .3913.94

1.10

7-178-4145.91 7-178-416

BT 50 ER 16 .031 to .3913.94 7-178-5145.91 7-178-516

ER Collet Chucks• Completely interchangeable with all ISO CompliantER Collets

• Produced according to AT3 specifications• Collet seat taper T.I.R. < .0002"• Made of alloy forged steel for a long durable service life• Through spindle coolant capability

17 PieceER Collet Chuck Set

TaperNumber

ColletNumber

ColletRange L D Nut Wrench Chuck

PartNumber



BT 30

ER 11 .019 to .275 2.00 0.75 7-188-811 7-188-911 7-178-311 -ER 11 .019 to .275 4.00 0.75 7-188-811 7-188-911 7-178-312 -ER 20 .039 to .511 2.50 1.38 7-188-821 7-188-916 7-178-320 -ER 25 .039 to .629 2.00 1.65 7-188-825 7-188-925 7-178-325 -ER 32 .078 to .787 3.00 1.97 7-188-832 7-188-932 7-178-332 -

BT 40

ER 16 1/32 to 25/64 3.94 1.10 7-178-816 7-178-916 - 7-178-014ER 25 .047 to .625 2.36 1.65 7-188-825 7-188-925 7-178-425 7-178-025ER 32 1/8 to 3/4 2.75

2.00 7-188-832 7-188-9327-178-432 7-178-032

ER 32 1/8 to 3/4 4.00 7-178-434 7-178-042ER 32 1/8 to 3/4 6.00 7-178-436 -ER 40 1/8 to 1 2.75

2.50 7-188-840 7-188-9407-178-442 -

ER 40 1/8 to 1 4.00 7-178-444 -ER 40 1/8 to 1 6.00 7-178-446 -ER 40 1/8 to 1 2.75 2.50 17 Piece Set 7-178-449 -

BT 50ER 32 1/8 to 3/4 2.75 2.00 7-188-832 7-188-932 7-178-532 7-178-132ER 40 1/8 to 1 3.15 2.50 7-188-840 - 7-178-542 7-178-142ER 40 1/8 to 1 3.15 2.50 17 Piece Set 7-178-549 -

Regular Length

Type 7626-S

Type 7626

• Hardened to RC 52-56 and ground to ensuremaximum accuracy

• For Individual ER Collets see pages 211 and 212


Extension Type

ER 20 - ER 40

ER 11 - ER 16

ER 11 and ER 16are provided withhex nut

BT FLANGE

BISON


Double Angle Collet Chucks• Completely Interchangeable with all ISO compliant DA Collets• Produced according to AT3 specifications• Collet seat taper T.I.R. < .0002"• Made of alloy forged steel for a long durable service life• Hardened to RC 52-56 and ground to ensure maximum accuracy• Through spindle coolant capability• Retention knobs are sold separately

• Draw Bar Threads: BT 40 M16 x 2

TaperNumber

ColletNumber

ColletRange L D Nut Wrench Chuck

PartNumberinches Part Number

BT 40DA 180

.125 to .7502.75

1.54 7-193-818 7-193-9187-177-415

DA 180 4.00 7-177-424

Type 7650

BT FLANGE

BTFLA

NG

EBISON


TG Collet Chucks• Completely interchangeable with all TG Collets• Produced according to AT3 specifications• Collet seat taper T.I.R. < .0002"• Made of alloy forged steel for a long durable service life• Hardened to RC 52-56 and ground to ensure maximum accuracy• Through spindle coolant capability• Retention knobs are sold separately


TaperNumber

ColletNumber

ClampingRange D L Nut Wrench Chuck

PartNumber



BT 3075 .125 to .750 2.125 2.50 7-180-901 7-180-925 7-172-301100 .094 to 1.0 2.50 4.00 - 7-180-930 7-172-304

BT 40

75 .125 to .750 2.125 3.00 7-180-901 7-180-925 7-172-401

100 .094 to 1.02.50 3.00

7-180-903 7-180-9307-172-403 7-172-003

1.5625 5.00 7-172-405 7-172-0051.875 7.00 7-172-407

BT 50100 .094 to 1.0 2.50

3.507-180-903 7-180-930

7-172-5035.50 7-172-505

150 .5 to 1.5 3.50 4.00 7-180-905 7-180-935 7-172-512

Type 7619

BT FLANGE

BISON


Precision Ball Bearing Keyless Drill Chuckswith Integral BT Flange• CAT and BT shanks are produced according to AT3 specification• Made of alloy forged steel for a long durable service life• Integral shank design is more compact than a combineddrill chuck and arbor for greater accuracy and rigidity

• Keyless operations• Self-tightening, clockwise rotation only• .00015" maximum T.I.R.


TaperNumberK

Capacityd1 D A Wrench Wt

lbs

ChuckPart

Numberinches mm Inches Part Number

BT 300 to .250 0 to 6.35 1.42 3.20 7-188-916 1.60 7-174-306

.016 to .375 .397 to 9.525 1.56 3.80 7-188-925 2.0 7-174-310

BT 40.031 to .500 .794 to 12.7 2.00 3.74

7-188-932K

4.40 7-174-433.125 to .625 3.175 to 15.875 2.25 3.94 5.28 7-174-435

BT 50.031 to .500 .794 to 12.7 2.00 4.13 10.12 7-174-563.125 to .625 3.175 to 15.875 2.25 4.33 11.44 7-174-565

Type 7656

BT FLANGE

BTFLA

NG

EBISON


Heavy Duty Keyless Drill Chucks• Keyless Drill Chucks are precision devices designed for high accuracy applications• Used on conventional or CNC machines in drilling, boring, and counterboring operations• Chucks are tightened and released by hand• Chucks have a self-tightening feature

L

K

DDd

L1

TypeCapacity

d MountK

D L L1 Wtlbs

Drill ChuckPart

Numberinches mm inchesPrecision Chucks 0.005 T.I.R.

6/J1 0 to .250 0.3 - 6 1JT 1.32 2.45 2.68 .66 7-051-06413/J2

.031 to .500 1 - 132JT

2 3.8 4.3 2.27-051-135

13/J33 33JT 7-051-13713/J6 6JT 7-051-13816/J6

.125 to .625 3 - 166JT

2.34.06 4.65 3.1 7-051-168


13/J2.031 to .500 1 - 13

2J2 3.8 4.3 2.2

7-051-33513/J33 33J 7-051-33713/J6 6J 7-051-33816/J6

.125 to .625 3 - 166J

2.34.06 4.65 3.1 7-051-368

16/J3 3J 4.33 4.9 3.3 7-051-369

HSK AND VDI TOOLING

BISON


HSK Form A End Mill Holders

• Tooling shanks DIN 69893

d D

K

L

L1

Type Shank d D L L1Set Screw

HolderPart NumberThread Part Number No. of

Screws7885-63-3/16-3.00

HSK63A

3/16 .75 3.00 1.00 1/4-28 7-195-110 1 7-306-60057885-63-1/4-3.00 1/4 .82 3.00 1.45 1/4-28 7-195-110 1 7-306-60107885-63-5/16-3.00 5/16 .86 3.00 1.53 5/16-24 7-195-120 1 7-306-60157885-63-3/8-3.50 3/8 1.06 3.50 1.53 3/8-24 7-195-210 1 7-306-60207885-63-7/16-4.00 7/16 1.26 4.00 1.70 3/8-24 7-195-210 1 7-306-60257885-63-1/2-4.00 1/2 1.37 4.00 1.77 7/16-20 7-195-321 1 7-306-60307885-63-5/8-4.00 5/8 1.75 4.00 2.20 9/16-18 7-195-415 1 7-306-60357885-63-3/4-4.50 3/4 1.75 4.50 2.32 5/8-18 7-195-513 1 7-306-60407885-63-7/8-4.50 7/8 2.04 4.50 2.87 5/8-18 7-195-517 2 7-306-60457885-63-1-4.50 1 2.37 4.50 2.87 3/4-16 7-195-618 2 7-306-6050

7885-63-1.1/4-4.50 1-1/4 2.75 4.50 3.45 3/4-16 7-195-618 2 7-306-6054

Set Screw

HSK AND VDI TOOLING

HSK

andVD

ITOO

LING

BISON


HSK Form A Integral Shank Keyless Drill Chucks


HSK Form A Jacobs Taper Holder


Precision Ball Bearing, KeylessDrill Chucks

• Tooling shanks DIN 69893• Heavy Duty• NC Quality

Type Shank JacobsTaper A Part

Number5390-63-J1-1.75

HSK63A

J1

1.75

7-309-60015390-63-J2-1.75 J2 7-309-60025390-63-J3-1.75 J3 7-309-60035390-63-J4-1.75 J4 7-309-60045390-63-J5-1.75 J5 7-309-60055390-63-J6-1.75 J6 7-309-60065390-63-J33-1.75 J33 7-309-6033

ChuckCapacity Mount Wt

lbsPart

Numberinches mm

1/32 - 1/2 1 - 132J

1.87-051-335

33J 7-051-3376J 7-051-338

1/8 - 5/8 3 - 166J 1.98 7-051-3683J 2.00 7-051-369

Type Shank d D A PartNumber

5391-63-1/2-5.85HSK63A

1/32-1/2 2 5.85 7-311-60055391-63-5/8-6.18 1/8-5/8 2.25 6.18 7-311-6008

HSK AND VDI TOOLING

BISON


HSK Form A Collet Chucks: ER 25, 32, and 40

Type Shank ColletSize

ClampingRanged

L D1Balanced


Part Number7887-63-25-80

HSK63AER 25 3/64 - 5/8 3.15 1.654 7-188-825E 7-188-925 7-305-6253

7887-63-32-100 ER 32 1/8 - 3/4 4.00 1.969 7-188-832E 7-188-932 7-305-63247887-63-40-120 ER 40 1/8 - 1 5.00 2.480 7-188-840E 7-180-930 7-305-6405

ER 11Balanced Nut and Wrench

ER 16Balanced Nut and

Wrench

ER Collets can befound on pages211 and 212

HSK Form A Collet Chucks: ER 11 and 16


Type Shank ColletSize

ClampingRanged

L1 D1Balanced


Part Number7887-63-11-63

HSK63AER 11 1/32 - 1/4

2.5.63 7-171-951E 7-171-961

7-305-61127887-63-11-100 4.0 7-305-61147887-63-16-100

ER 16 1/8 - 7/163.0

1.10 7-178-816E 7-178-9167-305-6165

7887-63-16-120 5.0 7-305-6166

ER 16Balanced Nut and

Wrench

HSK AND VDI TOOLING

HSK

andVD

ITOO

LING

BISON


VDI Toolholders, DIN 69880

ShankDiameter

d1a h b Part

Number

16 78 44 44 7-387-01630 130 76 85 7-387-03040 151 96 100 7-387-04050 160 120 125 7-387-050

ShankDiameter

d1a h b Part

Number

40 83 120 120 7-386-34040 83 320 320 7-386-34550 98 135 135 7-386-35050 98 400 400 7-386-355

ShankDiameter

d

ERCollet d5 d10 b b1 h Part

Number

16 20 40 35 45 14 18 7-366-03040 32 83 50 84 22 32.5 7-366-430

For ER Colletsand Collet Setssee pages 211 and 212

Round, Form A2

ER Collet Chuck

Rectangular, Form A1

Type 1203

Type 1220

HSK AND VDI TOOLING

BISON


D d L PartNumberinches inches inches mm

1-1/2 1/2 3 75 7-388-3051-1/2 5/8 3 75 7-388-3181-1/2 3/4 3 75 7-388-3201-1/2 1 3 75 7-388-3331-1/2 1-1/4 3 75 7-388-346

2 3/4 3 75 7-388-4222 1 3 75 7-388-435

BushingType

D d C L PartNumberinches inches mm mm

86-12CV 1.25

1/4

50 60

7-389-0283/8 7-389-0441/2 7-389-0605/8 7-389-0763/4 7-389-0927/8 7-389-1081 7-389-124

13CV 1.5

1/4

60 70

7-389-2283/8 7-389-2441/2 7-389-2603/4 7-389-2921 7-389-324

1-1/4 7-389-344

Type BType CV Type 1254 Type 1258

Toolholder Bushings

COLLETS AND COLLET SYSTEMS

COLLETS

BISON


5C High Speed Collet Chucks

Type 3974-4

MINI High Speed 0.0004"• 8000 RPM• Forged Steel Body• 4" Diameter• PLAIN BACK Part Number 7-862-0401• See page 114

Type 3911

UNIVERSAL 0.0004"• 6000 RPM• Forged Steel Body• 5" Diameter• PLAIN BACK Part Number 7-862-0501• D1 and Threaded DIRECT MOUNTPart Number 7-862-051

• See page 115

Type 3974-5CT

THREADED 0.0004"• 6000 RPM• Forged Steel Body• Threaded nose 2-3/16-10• Adapters: A, D1, L, DIN, and Threaded• 5" Diameter• PLAIN BACK Part Number 7-862-0502• See page 115

Type 3960

SET-TRU 0.0004"• 6000 RPM• Forged Steel Body• Adapters: A, D1, L, DIN, and Threaded• 5" Diameter• FLAT BACK Part Number 7-862-0505• See page 116

Type 3975

TRU LENGTH 0.0004"• 6000 RPM• Forged Steel Body• Adapters: A, D1, L, DIN, and Threaded• 5" Diameter• PLAIN BACK Part Number 7-862-0503• See page 115


BISON


Collet Sets PartNumber

18 piece 1/16” - 1-1/8” by 16ths 7-168-16835 Piece 1/16” - 1-1/8” by 32nds 7-168-18569 Piece 1/16” - 1-1/8” by 64ths 7-168-19024 Piece 3mm - 26mm by 1mm 7-168-674

5C Precision Round Collets• Concentricity guaranteed to 0.0004"

Size PartNumber Size Part

Number Size PartNumber

3/64 7-168-002 27/64 7-168-050 51/64 157-168-0981/16 7-168-004 7/16 7-168-052 13/16 7-168-1005/64 7-168-006 29/64 7-168-054 53/64 7-168-1023/32 7-168-008 15/32 7-168-056 27/32 7-168-1047/64 7-168-010 31/64 7-168-058 55/64 7-168-1061/8 7-168-012 1/2 7-168-060 7/8 7-168-1089/64 7-168-014 33/64 7-168-062 57/64 7-168-1105/32 7-168-016 17/32 7-168-064 29/32 7-168-11211/64 7-168-018 35/64 7-168-066 59/64 7-168-1143/16 7-168-020 9/16 7-168-068 15/16 7-168-11613/64 7-168-022 37/64 7-168-070 61/64 7-168-1187/32 7-168-024 19/32 7-168-072 31/32 7-168-12015/64 7-168-026 39/64 7-168-074 63/64 7-168-1221/4 7-168-028 5/8 7-168-076 1 7-168-12417/64 7-168-030 41/64 7-168-078 1-1/64 7-168-1269/32 7-168-032 21/32 7-168-080 1-1/32 7-168-12819/64 7-168-034 43/64 7-168-082 1-3/64 7-168-1305/16 7-168-036 11/16 7-168-084 1-1/16 7-168-13221/64 7-168-038 45/64 7-168-086 1-5/64 7-168-13411/32 7-168-040 23/32 7-168-088 1-3/32 7-168-13623/64 7-168-042 47/64 7-168-090 1-7/64 7-168-1383/8 7-168-044 3/4 7-168-092 1-1/8 7-168-14025/64 7-168-046 49/64 7-168-094 - -13/32 7-168-048 25/32 7-168-096 - -

18 Piece Collet Set 1/16” - 1-1/8” by 16ths 7-168-16835 Piece Collet Set 1/16” - 1-1/8” by 32nds 7-168-18569 Piece Collet Set 1/16” - 1-1/8” by 64ths 7-168-190

Size PartNumber

3 mm 7-168-6034 mm 7-168-6045 mm 7-168-6056 mm 7-168-6067 mm 7-168-6078 mm 7-168-6089 mm 7-168-60910 mm 7-168-61011 mm 7-168-61112 mm 7-168-61213 mm 7-168-61314 mm 7-168-61415 mm 7-168-61516 mm 7-168-61617 mm 7-168-61718 mm 7-168-61819 mm 7-168-61920 mm 7-168-62021 mm 7-168-62122 mm 7-168-62223 mm 7-168-62324 mm 7-168-62425 mm 7-168-62526 mm 7-168-626

24 Piece Collet Set3-26 mm by 1mm

7-168-674

English Metric

External Thread: 1.238" x 20RHInternal Thread: 1.047" x 24 RH

Description PartNumber

1/16” Steel 7-168-404

ColletSets

Universal 5 pc5C Collet Stop


Adjustable5C Collet Stop


5C Collet ChucksPart Number Series 7-775-

See page 142

Steel Emergency Collets

5C Collet Chuck AdaptersSee page 118

OptionalAccessories


COLLETS

BISON


ChuckDiameter Mounting

MountingBolt

Pattern

GrippingRange

MaxDraw BarPull Force

lbf

MaxDraw BarStroke

WrenchPart

Number

Wtlbs

ChuckPart

Number

5" Plain Back, Type 2974 4.252"0.0625 - 1.625 5290 0.157"

7-862-860

9 7-775-0630

6"Plain Back, Type 2904 5.5118" 12 7-775-0631

A2-5Adapter Plate for 7-775-0631 3.31

7-789-5065A2-6 7-789-5066

16C Precision Round Collets• Concentricity guaranteed to 0.0004"• External thread: M47.5" x 1.75 RH• Internal Thread: 1-11/16 x 20 RH



3/64 7-164-002 7/16 7-164-052 53/64 7-164-1021/16 7-164-004 29/64 7-164-054 27/32 7-164-1045/64 7-164-006 15/32 7-164-056 55/64 7-164-1063/32 7-164-008 31/64 7-164-058 7/8 7-164-1081/8 7-164-012 1/2 7-164-060 57/64 7-164-1109/64 7-164-014 33/64 7-164-062 29/32 7-164-1125/32 7-164-016 17/32 7-164-064 59/64 7-164-11411/64 7-164-018 35/64 7-164-066 15/16 7-164-1163/16 7-164-020 9/16 7-164-068 61/64 7-164-11813/64 7-164-022 37/64 7-164-070 31/32 7-164-1207/32 7-164-024 19/32 7-164-072 63/64 7-164-12215/64 7-164-026 39/64 7-164-074 1 7-164-1241/4 7-164-028 5/8 7-164-076 1-1/16 7-164-13217/64 7-164-030 41/64 7-164-078 1-5/64 7-164-1349/32 7-164-032 21/32 7-164-080 1-3/32 7-164-13619/64 7-164-034 43/64 7-164-082 1-7/64 7-164-1385/16 7-164-036 11/16 7-164-084 1-1/8 7-164-14021/64 7-164-038 45/64 7-164-086 1-3/16 7-164-14211/32 7-164-040 23/32 7-164-088 1-1/4 7-164-14423/64 7-164-042 47/64 7-164-090 1-5/16 7-164-1463/8 7-164-044 3/4 7-164-092 1-3/8 7-164-14825/64 7-164-046 49/64 7-164-094 1-7/16 7-164-15013/32 7-164-048 25/32 7-164-096 1-1/2 7-164-15227/64 7-164-050 51/64 7-164-098 1-9/16 7-164-154- - 13/16 7-164-100 1-5/8 7-164-156

16C Collet Chucks• Plain back and SET-TRU• Steel Body• T.I.R. 0.0004"• 6000 RPM

No Workpiece Movement

ChuckSize Mounting

16C ColletHoldingCapacity

RPM Wtlbs

PartNumber

6"Plain Back

1/16-1-5/8 600021.0 7-862-0601

SET-TRU 24.0 7-862-0605

Please refer to the Chucksection of this catalog fora complete listing of BISONCollet Chucks and Adapters

16C Collet Power Chucks• Concentricity guaranteed to T.I.R. 0.0004"• Forged steel body• 6000 RPM


BISON


R8 Precision Round Collets• Concentricity guaranteed to 0.0004"

EnglishSize Part


– – 11 mm 7-169-6112 mm 7-169-602 12 mm 7-169-6123 mm 7-169-603 13 mm 7-169-6134 mm 7-169-604 14 mm 7-169-6145 mm 7-169-605 15 mm 7-169-6156 mm 7-169-606 16 mm 7-169-6167 mm 7-169-607 17 mm 7-169-6178 mm 7-169-608 18 mm 7-169-6189 mm 7-169-609 19 mm 7-169-61910 mm 7-169-610 20 mm 7-169-620

19 Piece Collet Set2 mm - 20 mm by 1 mm

7-169-669



1/16 7-169-005 3/8 7-169-037 11/16 7-169-0683/32 7-169-010 13/32 7-169-040 23/32 7-169-0711/8 7-169-012 7/16 7-169-043 3/4 7-169-0755/32 7-169-015 15/32 7-169-046 25/32 7-169-0783/16 7-169-018 1/2 7-169-050 13/16 7-169-0817/32 7-169-021 17/32 7-169-053 27/32 7-169-0841/4 7-169-025 9/16 7-169-056 7/8 7-169-0879/32 7-169-028 19/32 7-169-059 1 7-169-0995/16 7-169-031 5/8 7-169-06211/32 7-169-034 21/32 7-169-065

13 Piece Collet Set 1/8"-7/8" by 16ths 7-169-11327 Piece Collet Set 1/16"-7/8" by 32nds 7-169-127

Metric

27 Piece Collet Set 1/16" - 7/8" by 32ndsPart Number: 7-169-127

13 Piece Collet Set 1/8" - 7/8" by 16thsPart Number: 7-169-113


COLLETS

BISON


DA 180, DA 100, DA 200, and DA 300 Collets

ColletSeries

No ofPieces Range Part

Number

DA 3005 1/8"-1/4" by 32nds 7-167-3409 1/8"-1/4" by 64ths 7-167-344

DA 2009 1/8"-3/8" by 32nds 7-167-27017 1/8"-3/8" by 64ths 7-167-275

DA 18017 1/4"-3/4” by 32nds 7-167-19233 1/4"-3/4" by 64ths 7-167-194

DA 10011 1/4"-9/16" by 32nds 7-167-07021 1/4"-9/16" by 1/64" 7-167-075

English Collet Sets

SizeDA-300 DA-200 DA-180 DA-100

Part Number3/64 7-167-324 7-167-234 - 7-167-0301/16 7-167-325 7-167-235 7-167-106 7-167-0315/64 7-167-326 7-167-236 7-167-107 7-167-0323/32 7-167-327 7-167-237 7-167-108 7-167-0337/64 7-167-328 7-167-238 7-167-109 7-167-0341/8 7-167-330 7-167-240 7-167-110 7-167-0359/64 7-167-331 7-167-241 7-167-111 7-167-0365/32 7-167-332 7-167-242 7-167-112 7-167-03711/64 7-167-333 7-167-243 7-167-113 7-167-0383/16 7-167-334 7-167-244 7-167-114 7-167-03913/64 7-167-335 7-167-245 7-167-115 7-167-0407/32 7-167-336 7-167-246 7-167-116 7-167-04115/64 7-167-337 7-167-247 7-167-117 7-167-0421/4 7-167-338 7-167-248 7-167-118 7-167-04317/64 - 7-167-249 7-167-119 7-167-0449/32 - 7-167-250 7-167-120 7-167-04519/64 - 7-167-251 7-167-121 7-167-0465/16 - 7-167-252 7-167-122 7-167-04721/64 - 7-167-253 7-167-123 7-167-04811/32 - 7-167-254 7-167-124 7-167-04923/64 - 7-167-255 7-167-125 7-167-0503/8 - 7-167-256 7-167-126 7-167-05125/64 - 7-167-257 7-167-127 7-167-052

SizeDA-180 DA-100Part Number

13/32 7-167-128 7-167-05327/64 7-167-129 7-167-0547/16 7-167-130 7-167-05529/64 7-167-131 7-167-05615/32 7-167-132 7-167-05731/64 7-167-133 7-167-0581/2 7-167-134 7-167-05933/64 7-167-135 -17/32 7-167-136 7-167-06135/64 7-167-137 -9/16 7-167-138 7-167-06337/64 7-167-139 -19/32 7-167-140 -39/64 7-167-141 -5/8 7-167-142 -41/64 7-167-143 -21/32 7-167-144 -11/16 7-167-146 -45/64 7-167-147 -23/32 7-167-148 -47/64 7-167-149 -3/4 7-167-150 -

English

ColletSeries

ColletRange

BodyDiameter

D

OALL

DA-300 1/8"-1/4" .375 1.000DA-200 1/8"-25/64" .531 1.188DA-100 1/8"-9/16" .769 1.438DA-180 1/4"-3/4" 0.873-1.035 1.637

Dimensions

Size ColletRange

DA-180Part

Number3 mm 3-2 7-167-5036 mm 6-5 7-167-5067 mm 7-6 7-167-5078 mm 8-7 7-167-50810 mm 10-9 7-167-51011 mm 11-10 7-167-51112 mm 12-11 7-167-51214 mm 14-13 7-167-514

Metric


BISON


ShankDiameterD1

ColletSeries

GrippingRange L D

Nut Wrench ExtensionPart

NumberPart Number

3/4" DA 200 1/8"-25/64"5-1/2

.86 7-193-805S 7-193-905S7-167-003

7-1/5 7-167-004

1" DA 100 1/8"-9/16"5-1/2

1.09 7-193-810 7-193-9107-167-005

7-1/2 7-167-010

1-1/4" DA 180 1/4"-3/4"3

1.54 7-193-818 7-193-9187-167-023

5-1/2 7-167-025

TaperNumber

ColletSeries

GrippingRange L D

Nut Wrench ChuckPart

NumberPart Number30

DA-180 1/4"-3/4"3

1.54 7-193-818 7-193-9187-167-013

40 3 7-167-01450 3-1/2 7-167-015

Collet Extensions

Collet Chucks with NST/NMTB-QC Shanks

Type 7665

Draw Bar Thread#30 1/2”-13#40 5/8”-11#50 1” -8


COLLETS

BISON


ColletSeries

No. ofPieces Range Part

Number

75TG11 1/8 - 3/4" x 16ths 7-166-19543 3/32 - 3/4" x 64ths 7-166-197

100TG15 1/8 - 1" x 16ths 7-166-51530 3/32 - 1" x 32nds 7-166-530

150TG17 1/2 - 1-1/2" x 16ths 7-166-69333 1/2 - 1-1/2" x 32nds 7-166-69565 1/2 - 1-1/2" x 64ths 7-166-698

TG Collet Chucks with R8 Shanks

ShankSize Size A D

Nut Wrench Collet ChuckPart Number

R8 100TG 3-1/8 2-1/2 7-180-9100 7-180-930 7-161-110

TG Collet Chucks with NST/NMTB Shanks

ShankSize Size A D

Nut Wrench Collet ChuckPart Number

3075TG 2-1/2 2-1/8 7-180-901 7-180-932 7-132-305100TG 3-15/16 2-1/2 7-180-9100 7-180-930 7-132-310

4075TG 2-1/2 2-1/8 7-180-901 7-180-932 7-132-405100TG 3 2-1/2 7-180-9100 7-180-930 7-132-410

50100TG 3-1/2 2-1/2 7-180-9100 7-180-930 7-132-510150TG 5 3-1/2 7-180-9150 7-180-935 7-132-535

English

Type 7819

Type 7640

Draw Bar Thread#30 1/2”-13#40 5/8”-11#50 1” -8

Draw Bar Thread7/16”-20

TG Collet Sets


BISON


TG Precision Single Angle Collets• Concentricity guaranteed to 0.0004"• TG collets collapse approximately 1/64"• Completely interchangeable with all leading brands• Hardened and ground to ensure maximum accuracy• Sets provided in sturdy wooden case

Collet must beinserted into thenose piecebefore puttinginto chuck

Fractional Decimal 150TG.

inchesPart

Number1-1/64 1.0156 7-166-6261-1/32 1.0312 7-166-6281-3/64 1.0469 7-166-6301-1/16 1.0625 7-166-6321-5/64 1.0781 7-166-6341-1/8 1.1250 7-166-6401-9/64 1.1406 7-166-6421-5/32 1.1562 7-166-6441-11/64 1.1719 7-166-6461-13/64 1.2031 7-166-6501-7/32 1.2188 7-166-6521-15/64 12344 7-166-6541-1/4 1.2500 7-166-6561-17/16 1.2656 7-166-6581-9/32 1.2812 7-166-6601-19/64 1.2969 7-166-6621-5/16 1.3125 7-166-6641-21/64 1.3281 7-166-6661-11/32 1.3438 7-166-6681-23/64 1.3594 7-166-6701-3/8 1.3750 7-166-6721-25/64 1.3905 7-166-6741-13/32 1.4062 7-166-6761-27/64 1.4219 7-166-6781-29/64 1.4531 7-166-6821-15/32 1.4688 7-166-6841-31/64 1.4844 7-166-6861-1/2 1.5000 7-166-688

Fractional Decimal 75TG 100TGinches Part Number

3/32 .0938 7-166-108 7-166-3087/64 .1094 7-166-110 7-166-3101/8 .1250 7-166-112 7-166-3129/64 .1406 7-166-114 7-166-3145/32 .1562 7-166-116 7-166-31611/64 .1719 7-166-118 7-166-3183/16 .1875 7-166-120 7-166-32013/64 .2031 7-166-122 7-166-3227/32 .2188 7-166-124 7-166-32415/64 .2344 7-166-126 7-166-3261/4 .2500 7-166-128 7-166-32817/64 .2656 7-166-130 7-166-3309/32 .2812 7-166-132 7-166-33219/64 .2969 7-166-134 7-166-3345/16 .3125 7-166-136 7-166-33621/64 .3281 7-166-138 7-166-33811/32 .3438 7-166-140 7-166-34023/64 .3594 7-166-142 7-166-3423/8 .3750 7-166-144 7-166-34425/64 .3906 7-166-146 7-166-34613/32 .4062 7-166-148 7-166-34827/64 .4219 7-166-150 7-166-3507/16 .4375 7-166-152 7-166-35229/64 .4531 7-166-154 7-166-35415/32 .4688 7-166-156 7-166-35631/64 .4844 7-166-158 7-166-358

TG Collet SetsSee previous page

Fractional Decimal 75TG 100TG 150TGinches Part Number

1/2 .5000 7-166-160 7-166-360 7-166-56033/64 .5156 7-166-162 7-166-362 7-166-56217/32 .5312 7-166-164 7-166-364 7-166-56435/64 .5469 7-166-166 7-166-366 7-166-5669/16 .5625 7-166-168 7-166-368 7-166-56837/64 .5781 7-166-170 7-166-370 7-166-57019/32 .5938 7-166-172 7-166-372 7-166-57239/64 .6094 7-166-174 7-166-374 7-166-5745/8 .6250 7-166-176 7-166-376 7-166-57641/64 .6406 7-166-178 7-166-378 7-166-57821/32 .6562 7-166-180 7-166-380 7-166-58043/64 .6719 7-166-182 7-166-382 7-166-58211/16 .6875 7-166-184 7-166-384 7-166-58445/64 .7031 7-166-186 7-166-386 7-166-58623/32 .7188 7-166-188 7-166-388 7-166-58847/64 .7344 7-166-190 7-166-390 7-166-5903/4 .7500 7-166-192 7-166-392 7-166-59249/64 .7654 - 7-166-394 7-166-59425/32 .7812 - 7-166-396 7-166-59651/64 .7969 - 7-166-398 7-166-59813/16 .8125 - 7-166-400 7-166-60053/64 .8281 - 7-166-402 7-166-60227/32 .8438 - 7-166-404 7-166-60455/64 .8594 - - 7-166-6067/8 .8750 - 7-166-408 7-166-60857/64 .8906 - 7-166-410 7-166-61029/32 .9062 - 7-166-412 7-166-61259/64 .9219 - 7-166-414 7-166-61415/16 .9375 - 7-166-416 7-166-61661/64 .9531 - 7-166-418 7-166-61831/32 .9688 - 7-166-420 7-166-62063/64 .9844 - 7-166-422 7-166-6221 1.0000 - 7-166-424 7-166-624

ColletSeries

DiameterD

LengthL

GrippingRange

75TG 1.062 1.844 3/32 to 3/4100TG 1.379 2.375 3/32 to 1150TG 2.001 3.000 1/2 to 1-1/2

TG-100 Collet ExtractorsPart Number 7-166-8001


COLLETS

BISON


NominalSizeinches

ER 11 ER 16 ER 20 ER 25 ER 32 ER 40 ER 50

Part Number1/32 7-171-112* 7-171-162 - - - - -1/16 7-171-113* 7-171-1621 7-171-203 7-171-2333 - - -3/32 7-171-114* 7-171-1623 7-171-204 7-171-2335 7-171-328 - -1/8 7-171-116* 7-171-163* 7-171-205* 7-171-2337* 7-171-330* 7-171-430* -5/32 - 7-171-1630 7-171-206 7-171-2338 7-171-332 7-171-432 -3/16 7-171-118* 7-171-164* 7-171-207* 7-171-234* 7-171-334* 7-171-434* -7/32 7-171-120* 7-171-165* 7-171-209* 7-171-236* 7-171-336 7-171-436 -1/4 7-171-122* 7-171-166* 7-171-211* 7-171-238* 7-171-338* 7-171-438* -9/32 - 7-171-1663 7-171-212 7-171-240 7-171-339 7-171-440 -5/16 - 7-171-167* 7-171-213* 7-171-242* 7-171-340* 7-171-442* -11/32 - 7-171-168* 7-171-215* 7-171-244* 7-171-344 7-171-444 -3/8 - 7-171-169* 7-171-217* 7-171-246* 7-171-346* 7-171-446* -13/32 - - 7-171-219* 7-171-248* 7-171-348 7-171-448 -7/16 - - 7-171-221* 7-171-250* 7-171-350* 7-171-450* -15/32 - - 7-171-222 7-171-252 7-171-352 7-171-452 -1/2 - - 7-171-223* 7-171-254* 7-171-354* 7-171-454* 7-171-495917/32 - - - 7-171-256* 7-171-356 7-171-456 -9/16 - - - 7-171-258* 7-171-358* 7-171-458* -19/32 - - - 7-171-260 7-171-360 7-171-460 -5/8 - - - 7-171-262 7-171-362* 7-171-462* 7-171-496721/32 - - - - 7-171-364 7-171-464 -11/16 - - - - 7-171-366* 7-171-466* -23/32 - - - - 7-171-368 7-171-468 -3/4 - - - - 7-171-370* 7-171-470* 7-171-497525/32 - - - - - 7-171-472 -13/16 - - - - - 7-171-474* -27/32 - - - - - 7-171-476 -7/8 - - - - - 7-171-478* -29/32 - - - - - 7-171-480 -15/16 - - - - - 7-171-482* -31/32 - - - - - 7-171-484 -1 - - - - - 7-171-486* 7-171-4989

1-1/4 - - - - - - 7-171-4995

Collet Sets7 Pc. Set 7 Pc. Set 10 Pc. Set 12 Pc. Set 11 Pc. Set 15 Pc. Set -7-171-125 7-171-195 7-171-225 7-171-295 7-171-395 7-171-495 -

ER Spring Collets and Collet Sets• Concentricity guaranteed to 0.0004"• Wide holding range of each collet requiresfewer collets and changes

• ER Collets collapse approximately 1/32"while maintaining full accuracy

• Unique self-releasing system eliminates sticking• ER Mini-Collet Chucks allow for machining intight locations with reduced outside nose diameter

Style D LER 11 - -ER 16 0.669 1.062ER 20 0.826 1.220ER 25 1.024 1.378ER 32 1.299 1.574ER 40 1.614 1.811

* Indicates sizescontained in set

ER Collet Extractors:ER32: Part Number 7-171-0032ER40: Part Number 7-171-0042


BISON


ER Spring Collets and Collet Sets

NominalSize

GrippingRange

GrippingRange ER 11 ER 16 ER 20 ER 25 ER 32 ER 40

mm inches Part Number1 1-0.5 .019-.039 7-171-511 7-171-501 – – – –2 2-1 .039-.078 7-171-513 7-171-502 7-171-602* 7-171-702 – –3 3-2 .078-.118 7-171-515 7-171-503 7-171-603 7-171-703 7-171-803 –4 4-3 .118-.157 7-171-517 7-171-504 7-171-604 7-171-704 7-171-804 7-171-9045 5-4 .157-.196 7-171-519 7-171-505 7-171-605 7-171-705 7-171-805 7-171-9056 6-5 .196-.236 7-171-521 7-171-506 7-171-606 7-171-706 7-171-806 7-171-9067 7-6 .236-.275 7-171-523 7-171-507 7-171-607 7-171-707 7-171-807 7-171-9078 8-7 .275-.314 – 7-171-508 7-171-608 7-171-708 7-171-808 7-171-9089 9-8 .314-.354 – 7-171-509 7-171-609 7-171-709 7-171-809 7-171-90910 10-9 .354-.393 – 7-171-510 7-171-610 7-171-710 7-171-810 7-171-91011 11-10 .393-.433 – – 7-171-611 7-171-711 7-171-811 7-171-91112 12-11 .433-.472 – – 7-171-612 7-171-712 7-171-812 7-171-91213 13-12 .472-.511 – – 7-171-613 7-171-713 7-171-813 7-171-91314 14-13 .511-.551 – – – 7-171-714 7-171-814 7-171-91415 15-14 .551-.590 – – – 7-171-715 7-171-815 7-171-91516 16-15 .590-.629 – – – – 7-171-816 7-171-91617 17-16 .629-.669 – – – – 7-171-817 7-171-91718 18-17 .669-.708 – – – – 7-171-818 7-171-91819 19-18 .708-.748 – – – – 7-171-819 7-171-91920 20-19 .748-.787 – – – – 7-171-820 7-171-92021 21-20 .787-.826 – – – – – 7-171-92122 22-21 .826-.866 – – – – – 7-171-92223 23-22 .866-.905 – – – – – 7-171-92324 24-23 .905-.944 – – – – – 7-171-92425 25-24 .944-.984 – – – – – 7-171-92526 26-25 .984-1.023 – – – – – 7-171-926

Collet Sets7 pc set 10 pc set 11 pc set 14 pc set 18 pc set 23 pc set

7-171-525 7-171-595 7-171-695 7-171-795 7-171-895 7-171-935

Metric

* Not included in set


COLLETS

BISON


ER 11 and ER 16 ER 20 ER 25 - ER 40

ER Collet Chuck Sets• All collet chucks come with a nut• Wrenches sold separately

Each set includes:• Collet Chuck• Collets• 1 Wrench• 1 Nut• Wooden case

ColletSize

ShankSize

OverallLength

ColletSizes


Collet ChuckSet

Part Number

ER 111/2 6.2

1/32, 1/16, 3/32, 1/8, 3/16, 7/32, 1/47-171-951 7-171-961 7-171-1105 7-171-1115

5/8 6.2 7-171-1106 7-171-1116

ER 165/8 6.0

1/8, 3/16, 7/32, 1/4, 5/16, 11/32, 3/87-171-966 7-171-976 7-171-1606 7-171-1616

3/4 6.5 7-171-1607 7-171-1617

ER 203/4 5.5

1/8, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 13/32, 7/16, 1/27-188-821 7-171-982 7-171-2007 7-171-2017

1 5.5 7-171-2009 7-171-2019

ER 253/4 6.5 1/8, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 13/32, 7/16, 1/2,

17/32, 9/167-188-825 7-188-925 7-171-2303 7-171-2313

1 6.5 7-171-2305 7-171-2315

ER 32

R8 6-1/4

1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16,5/8, 11/16, 3/4

7-188-832 7-188-932 7-171-3008 7-171-3108NMTB 30 5-1/16 7-171-3030 7-171-3130NMTB 40 6-1/16 7-171-3040 7-171-3140MT-3 6-1/16 7-171-3003 7-171-31031 3-3/4 7-171-3001 7-171-3101

ER 40

R8 6-1/2

1/8, 3/16, 1/4, 5/16, 3/8,7/16, 1/2, 9/16, 5/8,

11/16, 3/4, 13/16, 7/8, 15/16, 1

7-188-840 7-180-930 7-171-4008 7-171-4108NMTB 40 6-1/16 7-171-4040 7-171-4140NMTB 50 7-3/4 7-171-4050 7-171-4150

1 4-1/2 7-171-4001 7-171-41011-1/4 4-3/4 7-171-4002 7-171-4102

English

Spare Parts


BISON


ER Collet Chucks with Cylindrical Shanks

ShankSizeD

ColletSize L D1


Part Number1/2"

ER 11 6.2 .630 7-171-951 7-171-9617-171-1105

5/8" 7-171-11065/8"

ER 166.0

.875 7-171-966 7-171-9767-171-1606

3/4" 6.5 7-171-16073/4"

ER 20 5.5 1.338 7-188-821 7-171-9827-171-2007

1" 7-171-20093/4"

ER 25 6.5 1.650 7-188-825 7-188-9257-171-2303

1" 7-171-23051" ER 32 3.75 1.97 7-188-832 7-188-932 7-171-30011"

ER 404.50

2.48 7-188-840 7-180-9307-171-4001

1-1/4" 4.75 7-171-4002

A

D

ER Collet Chucks with R8 Shanks

ShankSize

ColletSize A D


Part Number

R8

ER 16 1.49 1.26 7-178-816 7-178-916 7-171-1608ER 20 1.77 1.38 7-188-820 7-188-920 7-171-2008ER 25 1.97 1.65 7-188-825 7-188-925 7-171-2508ER 32 2.28 1.97 7-188-832 7-188-932 7-171-3008ER 40 2.36 2.48 7-188-840 7-180-930 7-171-4008

Type 7812

Type 7814

ER11 and ER16

ER 16 Hex NutER 20 - 40 Round Nut

Draw Bar Thread7/16”-20


COLLETS

BISON


ShankSize

ColletSize A D


Part Number

30ER 16 1.97 1.26 7-178-816 7-178-916 7-171-1730ER 32 2.36 1.97 7-188-832 7-188-932 7-171-3030

40

ER 16 2.36 1.26 7-178-816 7-178-916 7-171-1740ER 25 2.36 1.65 7-188-825 7-188-925 7-171-2640ER32 2.75 1.97 7-188-832 7-188-932 7-171-3040ER 40 2.36 2.48 7-188-840 7-180-932 7-171-4040

50 ER 40 2.75 2.48 7-188-840 7-180-932 7-171-4050

ER 25 - 40

Wrench

ER Collet Chucks with NST/NMTB QC Shanks

Nut

ER Collet Chucks with MT Shanks

ShankSize

ColletSize A D


Part NumberMT 3 ER 32 2.894 1.97 7-188-832 7-188-932 7-171-3003

Type 7711

Type 7616

Draw Bar ThreadMT3 3/8”-16

Draw Bar Thread#30 1/2”-13#40 5/8”-11#50 1” -8

ER 16

TOOL TIGHTENING FIXTURES

BISON


D

L

ød

K

Universal CNC Tool Tightening Fixtures• Multiple usage on tool holder tapers NMTB (ISO), CAT and BT• Efficiently designed for maximum protection of tool holder• Enables strong gripping power of cutting tools• Compact design for mounting on work table or tool cart

Universal H/V CNC Tool Tightening Fixtures• Multiple usage on tool holder tapers NMTB/NST, ISO, CAT, BT, and DIN• Efficiently designed for maximum protection of tool holder• Enables strong gripping power of cutting tools in horizontal and vertical positions• Light weight and compact design for mounting on work table or tool cart

TaperSize H L B Wt

lbsPart

NumberCAT/BT 30 4.25 7.09 3.73 3.8 7-189-730CAT/BT 40 4.25 7.09 3.73 4.2 7-189-740CAT/BT 50 5.91 9.84 4.72 8.4 7-189-750

TaperSize D K L d Wt

lbsPart

Number40 8.0 3.0 6.7 1.69 12.5 7-189-400

TOOL TIGHTENING FIXTURES

TOO

LTIG

HTEN

ING

FIXTURES

BISON


4.72

∅130

5.9

8

4.0

5.3

1

.197

Fixture Adapter

.943.74

6.3

0

Ø.43"

Universal H/V Heavy Duty Tool Tightening Fixtures• Universal – one fixture can be used with many tool holder tapers - NMTB/NST, ISO, CAT, BT, and DIN• Efficiently designed for maximum protection of toolholder• Enables strong gripping power of cutting tools in horizontal or vertical positions• Heavy duty and compact design for mounting on work table or tool cart• Fixture and adapters sold separately

TaperSize A

Adapters FixtureWtlbs

PartNumber

Wtlbs

PartNumber

CAT/BT 302.26

5.0 7-189-630*20 7-189-610CAT/BT 40 6.5 7-189-640*

CAT/BT 50 9.0 7-189-650*

Working Positions

Type 1117

CONVENTIONAL MACHINING

BISON


Milling Machine Arborsfor 30, 40, and 50 National Standard Taper Spindles• Milling machine arbors are made of top quality one piece forgings• Carefully heat treated and ground surfaces with

extremely narrow tolerances assure a rigidsetup and accurate machining operations

• All external threads are ground• Arbors are equipped with assorted width of solid

spacers and the necessary running bushingswith standard keyways and threaded arbor nut

• Style “A” arbors are provided with 23/32 x 1-3/4" end pilots• Draw Bar Threads:

#30 1/2" - 13#40 5/8" - 11#50 1" - 8

Style “A”

ArborNumber Taper

ArborDiameter

d

LengthL

RunningBushing

D x a

No. ofBushings

Wtlbs

PartNumber

30-7/8 - A10-2

30

7/8 10 1-5/8 x 2-5/8 1 6.15 7-010-00531 - A10-2 1 10 1-5/8 x 2-5/8 1 6.83 7-010-010

31-1/4 - A10-2 1-1/4 10 1-5/8 x 2-5/8 1 8.37 7-010-01531-1/4 - A10-3 1-1/4 10 1-7/8 x 3-1/8 1 9.14 7-010-017

41 - A8

40 1

8 – – 6.43 7-010-02741 - A10 10 – – 7.42 7-010-02841 - A12 12 – – 8.42 7-010-03041 - A16-3 16 1-7/8 x 3-1/8 1 11 7-010-03541-1/4 - A8

40 1-1/4

8 – – 8.53 7-010-03741-1/4 - A10 10 – – 10.55 7-010-03841-1/4 - A12 12 – – 11.86 7-010-04041-1/4 - A16-3 16 1-7/8 x 3-1/8 1 14.77 7-010-04550-7/8 - A18-4 50 7/8 18 2-1/8 x 3-3/4 1 16 7-010-055

51 - A850 1

8 – – 9.43 7-010-05751 - A12 12 – – 11.37 7-010-06051 - A18-4 18 2-1/8 x 3-3/4 1 17.28 7-010-06551-1/4 - A12

50 1-1/412 – – 14.57 7-010-070

51-1/4-A18-4 18 2-1/8 x 3-3/4 1 20.32 7-010-075

These arbors have aright-hand thread


MACH

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RIESBISON


Milling Machine Arborsfor 30, 40 and 50 National Standard Taper Spindles• Draw Bar Threads:

#30 1/2" - 13#40 5/8" - 11#50 1" - 8

Style “B”

ArborNumber Taper

ArborDiameter

d

LengthL

RunningBushing

D x a

No. ofBushings

Wtlbs

PartNumber

31 - B2 30 1 2 – – 2.3 7-015-00240-7/8 - B14-3

40 7/814 1-7/8 x 3-1/8 1 9.1 7-015-005

40-7/8 - B16-3 16 1-7/8 x 3-1/8 1 9.4 7-015-00641 - B3

40 13 – – 3.7 7-015-008

41 - B14-3 14 1-7/8 x 3-1/8 1 11.5 7-015-01041 - B20-3 20 1-7/8 x 3-1/8 1 13.8 7-015-01541-1/4 - B3

40

1-1/4 3 – – 5 7-015-01741-1/4 - B14-3 1-1/4 14 1-7/8 x 3-1/8 1 13.4 7-015-02041-1/4 - B20-3 1-1/4 20 1-7/8 x 3-1/8 1 16.6 7-015-02541-1/2 - B20-4 1-1/2 20 2-1/8 x 3-3/4 1 23.2 7-015-03051 - B3-1/2

50 1

3-1/2 – – 6.8 7-015-03351 - B15-4 15 2-1/8 x 3-3/4 1 15.1 7-015-03551 - B18-4 18 2-1/8 x 3-3/4 2 18.4 7-015-04051 - B24-4 24 2-1/8 x 3-3/4 2 21.0 7-015-045

51-1/4 - B3-1/2

50 1-1/4

3-1/2 – – 8.8 7-015-04751-1/4 - B15-4 15 2-1/8 x 3-3/4 1 17.5 7-015-05051-1/4 - B18-4 18 2-1/8 x 3-3/4 2 20.7 7-015-05551-1/4 - B24-4 24 2-1/8 x 3-3/4 2 24.2 7-015-06051-1/4 - B30-4 30 2-1/8 x 3-3/4 2 30 7-015-06551-1/2 - B3-1/2

50 1-1/2

3-1/2 – – 9 7-015-06751-1/2 - B18-4 18 2-1/8 x 3-3/4 2 25 7-015-07051-1/2 - B24-5 24 2-3/4 x 4-1/4 2 36 7-015-07551-1/2 - B30-5 30 2-3/4 x 4-1/4 2 44.6 7-015-08052 - B24-5

50 224 2-3/4 x 4-1/4 2 48 7-015-090

52 - B30-5 30 2-3/4 x 4-1/4 2 62.3 7-015-09552 - B36-5 36 2-3/4 x 4-1/4 2 73 7-015-100

52-1/2 - B36-6 50 2-1/2 36 3-3/8 x 4-1/4 2 94.3 7-015-105


BISON


OD ofbushing

D

HoleDiameter

d

Length ofBushing

a

Widthof

Keyway

PartNumber

1-5/8 7/8 2-5/8 1/8 7-025-0051-5/8 1 2-5/8 1/4 7-025-0101-7/8 1-1/4 2-5/8 5/16 7-025-0151-7/8 1 3-1/8 1/4 7-025-0251-7/8 1-1/4 3-1/8 5/16 7-025-0301-7/8 7/8 3-3/4 1/8 7-025-0352-1/8 1 3-3/4 1/4 7-025-0402-1/8 1-1/4 3-3/4 5/16 7-025-0452-1/8 1-1/2 3-3/4 3/8 7-025-0502-1/8 1 4-1/4 1/4 7-025-0602-3/4 1-1/4 4-1/4 5/16 7-025-0652-3/4 1-1/2 4-1/4 3/8 7-025-0702-3/4 2 4-1/4 1/2 7-025-0753-3/8 2-1/2 4-1/2 5/8 7-025-080

Width ofSpacer

b

Part Numberd = 7/8"

D = 1-3/8"d = 1"

D = 1-1/2"d = 1-1/4"D = 1-3/4"

d = 1-1/2"D = 2-1/8"

d = 2"D = 2-3/4"

1/16 7-020-005 7-020-090 7-020-175 7-020-260 -3/32 7-020-010 7-020-095 - 7-020-265 -1/8 7-020-015 7-020-100 7-020-185 7-020-270 7-020-3953/16 - 7-020-105 7-020-190 7-020-275 7-020-4001/4 7-020-025 7-020-110 7-020-195 7-020-280 7-020-4055/16 - 7-020-115 7-020-200 7-020-285 7-020-4103/8 7-020-035 7-020-120 7-020-205 7-020-290 7-020-4157/16 7-020-040 7-020-125 7-020-210 7-020-295 -1/2 7-020-045 7-020-130 7-020-215 7-020-300 7-020-4255/8 7-020-050 7-020-135 7-020-220 - 7-020-4303/4 7-020-055 7-020-140 7-020-225 7-020-310 7-020-4357/8 7-020-060 7-020-145 7-020-230 - 7-020-4401 7-020-065 7-020-150 7-020-235 7-020-320 7-020-445

1-1/4 7-020-070 7-020-155 7-020-240 7-020-325 7-020-4501-1/2 7-020-075 7-020-160 7-020-245 - 7-020-4552 7-020-080 7-020-165 7-020-250 7-020-335 7-020-4603 - 7-020-170 7-020-255 7-020-340 7-020-465

Width of keyway 1/8 1/4 5/16 3/8 1/2

Milling Machine Arbor AccessoriesSolid Spacers with Keyways• Spacers are hardened and have parallel and

perpendicular surfaces precisely ground to ensureprecise operation of cutters on milling machine arbors

b

d D

Right Hand Nuts• RH nuts are hardened with a ground thread and shoulder

H

SD

Running Bushings• Bushings are hardened and have parallel and

perpendicular surfaces precisely ground toensure maximum holding power, rigid setup,and accurate machining operations

• Bushings have standard keyways which allowfixed mounting on arbor and prevent rotation

a

d D

ArborDiameter

ThreadSize

HeightH

FlatS

ODD

PartNumber

7/8 7/8 - 14RH 0.75 1-1/8 1.38 7-030-005R1 1-14RH 0.88 1-1/4 1.62 7-030-010R

1-1/4 1-1/4 - 12RH 0.88 1-1/4 1.62 7-030-015R1-1/2 1-1/2 - 12RH 1.31 1-13/16 2.10 7-030-020R2 2 - 12RH 1.75 2-3/8 2.72 7-030-025R

2-1/2 2-1/2 - 12RH 1.75 2-3/8 2.72 7-030-030R


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Stub Milling Machine Arbors with Weldon Shank• Made of alloy forged steel for long

durable service life• Hardened to RC 56-60 and ground

to ensure maximum accuracy• Face is held perpendicular to

center line within 0.0004"

ShankDiameter

D

ArborDiameter

dA

WrenchSize

SL

NutPart

Number

ArborPart

Number

1/21/2 .87 .75

1

- 7-072-0055/8 1.00 .87 - 7-072-0103/4 1.16 1.00 - 7-072-015

3/4

1/2 .87 .75 - 7-072-0205/8 1.00 .87 - 7-072-0253/4 1.16 1.00 - 7-072-0307/8 1.37 1.12 - 7-072-0351 1.50 1.12 7-072-940 7-072-040

1-1/4 1.75 1.50 - 7-072-045

Slitting Saw and Stub Milling Machine Arbors with R8 Shank• Made of alloy forged steel for longdurable service life

• Hardened to RC 56-60 and ground toensure maximum accuracy

• Face is held perpendicular to center linewithin 0.0004"

ShankDiameter

ArborDiameter

dD

WrenchSize

SL

NutPart

Number

ArborPart

NumberR8 1 1.50 1.25 2 7-030-010R 7-070-005R8 1-1/4 1.75 1.50 2 7-030-015R 7-070-010

S

S

• Pilot diameter is sized for precision fit withcutter and is keyed for positive drive

• Heavy duty locking LH nut and set of arborspacers are included

• Draw Bar Thread 7/16" x 20

• Pilot diameter is sized for precision fit withcutter and is keyed for positive drive

• Heavy duty locking RH nut and three arborspacers are included


BISON


Slitting and Slotting Saw ArborsHardened and Precisely Ground• Rigid arbors with extended length reach areas that standard short arbors cannot• Each arbor is ground for precision within 0.002" or 0.0004" T.I.R. (see drawing and table)• Super low profile cups allow cutter to get lower and closer to working area• Plug style cup gives extra support and rigidity when working with larger diameter saws• Sets are supplied in a wooden stand

ShankDiameter

D

HoleSized

d1 L

ArborScrewPart

Number

HexKeyPart

Number

Arbor.002"Part

Number

Arbor.0004"

PartNumber

.500.250 .500 2.70 7-123-905 6-999-583 7-123-005 7-123-305.375 .625 2.88 7-123-910 6-999-584 7-123-010 7-123-310.500 .750 3.07 7-123-915 6-999-585 7-123-015 7-123-315

Set of 3 Arbors .250" - .500" - - 7-123-050 7-123-350

.750.625 1.00 3.53 7-123-925 6-999-585 7-123-105 7-123-4051.000 1.50 3.78 7-123-930 6-999-586 7-123-110 7-123-4101.250 1.75 4.03 7-123-935 6-999-586 7-123-115 7-123-415

Set of 3 Arbors .625" - 1.250" - - 7-123-150 7-123-450 0.0004"T.I.R.

NEW – Rigid and Precision Design Arbor• This versatile arbor offers flexibility in sawing operations• The spring loaded mechanism accepts saw

blades with hole diameters from 1/2" to 1"• Saw blades are firmly secured in position with a hex socket screw• Rust resistant black oxide finish• Arbors are provided with one hex wrench and one screw

Part Number7-120-005



ShankDiameter

DOAL Hole

DiameterHead

Diameter

ScrewPart

Number

Hex KeyPart

Number

ArborPart

Number1/2" Weldon 3-3/8 3/8 .61 7-121-910 6-998-153 7-121-0101/2" Weldon 2-9/16 1/2, 5/8, 3/4,

7/8, 11.24 7-120-900 6-998-162 7-120-005

R8 5-3/32 1.24 7-120-900 6-998-162 7-120-010


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Shell End Mill Holders with Weldon Shankfor HSS and Indexable End Mill Cutters

ShankDiameter

Dd A l D1 L

Key Key Screw Arbor Screw HolderPart

NumberB Part Number Part Number Thread Part Number

3/4" .750 .703.672

1.750 2.00 5/16 7-080-110 7-080-155 3/8-24 7-080-010 7-064-005

1.00"1.000 .714 2.125

2.283/8 7-080-115 7-080-160 1/2-20 7-080-015 7-064-010

1.250 .845 2.500 1/2 7-080-120 7-080-160 5/8-18 7-080-020 7-064-015

1-1/4".500

1.000

.550 1.5002.28

1/4 7-080-105 7-080-150 1/4-28 7-080-005 7-064-020.750

.6901.770 5/16 7-080-110 7-080-155 3/8-24 7-080-010 7-064-025

1.000 2.280 3/8 7-080-115 7-080-160 1/2-20 7-080-015 7-064-0301-1/2" 1.000 2.280 2.70 3/8 7-080-115 7-080-160 1/2-20 7-080-015 7-064-035

Face Mill Holders• NST Taper is produced according to AT3 specifications• Made of alloy forged steel for a long durable service life• Holders have four mounting holes with the thread 5/8-11

on a 4" bolt circle to hold 8" or larger face milling cutters• Shell end mill pilot T.I.R. <0.0004"• Holders have 1" drive keys

Shank HolderDiameter

ArborLength

Wtlbs

PartNumber

NST 402

6.207.5 7-170-005

2-1/2 8.0 7-170-020

NST 502

7.5611.5 7-170-010

2-1/2 11.8 7-170-025NST 60 2-1/2 10.70 45.2 7-170-030

Type 2842

MT 52

9.5710.8 7-170-035

2-1/2 11.2 7-170-045

MT 62

13.5818.1 7-170-040

2-1/2 18.6 7-170-050

Type 7349

Draw Bar Threads:NST 40 5/8 "- 1NST 50 1" - 8NST 60 1-1/4 "- 7


BISON


Shell End Mill Arbors with MT Shank• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell end mill pilot T.I.R. <0.0004"• Each set is provided with a wooden case• Draw bar threads:

MT 4 1/2" - 13MT 5 5/8" - 11

MTShank

ArborDiameter

GageLength

Style “A”Tanged

Part Number

4

1/2

1.122

7-050-0053/4 7-050-0101 7-050-015

1-1/4 7-050-0201-1/2 7-050-025

51 1.201 7-050-030

1-1/4 1.122 7-050-0351-1/2 1.122 7-050-040

Style “A”

Shank ArborDiameter

GageLength

ArborPart Number

R8

1/2 1.024 7-065-0053/4

.945

7-065-0101 7-065-015

1-1/4 7-065-0201-1/2 7-065-025

Socket Head Arbor Screws• Socket head arbor screws are designed for all shell end mill arbors• Made of alloy forged steel for a long durable service life

ThreadSize

ArborDiameter L D Part Number

1/4-28 1/2 0.500 0.626 7-080-0053/8-24 3/4 0.626 0.874 7-080-0101/2-20 1 0.811 1.189 7-080-0155/8-18 1-1/4 0.931 1.500 7-080-0203/4-16 1-1/2 1.126 1.874 7-080-0251-14 2 1.375 2.500 7-080-030

Type 7411

Shell End Mill Arbors with R8 Shank• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell end mill pilot T.I.R. <0.0004"• Each set is provided with a wooden case• Draw Bar Threads:

7/16" - 20

Type 7550

Type 9874


MACH

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RIESBISON


Shell End Mill Arbors with NMTB Shank• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell end mill pilot T.I.R. <0.0004"• Each set is provided with a wooden case• Draw bar threads:

NST/NMTB-QC 30 1/2" - 13NST/NMTB-QC 40 5/8" - 11NST/NMTB-QC 50 1" - 8

NSTShank

ArborDiameter

GageLength

Wtlbs

PartNumber

30

1/2 .689 0.82 7-060-005Q3/4 .689 0.95 7-060-010Q1 .929 1.26 7-060-015Q

1-1/4 .929 1.32 7-060-020Q

40

3/4 .689 1.96 7-060-030Q1 .937 2.25 7-060-035Q

1-1/4 .937 2.45 7-060-040Q1-1/2 .937 2.76 7-060-045Q2 .937 3.44 7-060-050Q

50

3/4 .752 6.1 7-060-060Q1 1.000 6.4 7-060-065Q

1-1/4 1.000 6.5 7-060-070Q1-1/2 1.000 6.9 7-060-075Q2 1.000 7.4 7-060-080Q

Shell End Mill Arbors with 4" Extension

NSTShank

ArborDiameter

Wtlbs

PartNumber

403/4 3.5 7-075-002Q1 3.9 7-075-005Q

501 8.6 7-075-010Q

1-1/4 10.6 7-075-015Q1-1/2 13.5 7-075-020Q

Type 7320

• Draw bar threads:NST/NMTB-QC 40 5/8" - 11NST/NMTB-QC 50 1" - 8


BISON


Type 7721

MTShank

HoleDiameter

Set Screw GageLength

L

Style “A” Style “B”Part

NumberThread Part Number Part Number

2

3/16 10-32 x 5/16 7-195-091 2.008 7-155-005

7-155-3025 Pc Set

7-150-0051/4 1/4-28 x 1/4 7-195-110 2.008 7-155-007 7-150-0073/8 3/8-24 x 5/16 7-195-208 2.008 7-155-010 7-150-0101/2 7/16-20 x 25/64 7-195-314 3.465 7-155-015 7-150-0155/8** 9/16-18 x 15/32 7-195-412 2.717 7-155-020 7-150-020

3

3/16 10-32 x 5/16 7-195-091 2.008 7-155-025

7-155-3036 Pc Set

7-150-0251/4 1/4-28 x 1/4 7-195-110 2.008 7-155-027 7-150-0273/8 3/8-24 x 5/16 7-195-208 2.008 7-155-030 7-150-0301/2 7/16-20 x 25/64 7-195-314 2.126 7-155-035 7-150-0355/8 9/16-18 x 15/32 7-195-412 3.976 7-155-040 7-150-0403/4** 5/8-18 x 1/2 7-195-513 2.835 7-155-045 7-150-045

4

3/8 3/8-24 x 5/16 7-195-208 2.067 7-155-050

7-155-3045 Pc Set3/8" - 7/8"

7-150-0501/2 7/16-20 x 25/64 7-195-314 2.185 7-155-055 7-150-0555/8 9/16-18 x 15/32 7-195-412 2.264 7-155-060 7-150-0603/4 5/8-18 x 1/2 7-195-513 2.420 7-155-065 7-150-0657/8 5/8-18 x 1/2 7-195-513 2.500 7-155-070 -1** 3/4-16 x 19/32 7-195-615 3.169 7-155-075 7-150-075

5

3/8 3/8-24 x 5/16 7-195-208 2.067 7-155-080

7-155-3059 Pc Set

7-150-0801/2 7/16-20 x 25/64 7-195-314 2.185 7-155-085 -5/8 9/16-18 x 15/32 7-195-412 2.264 7-155-090 -3/4 5/8-18 x 1/2 7-195-513 2.500 7-155-095 7-150-0957/8 5/8-18 x 1/2 7-195-513 2.420 7-155-100 -1 3/4-16 x 19/32 7-195-615 2.736 7-155-105 7-150-105

1-1/4** 3/4-16 x 19/32 7-195-615 2.815 7-155-110 7-150-1101-1/2** 3/4-16 x 19/32 7-195-615 3.500 7-155-115 7-150-1152* 1-14 x 53/64 7-195-820 4.197 7-155-120 7-150-120

Type 7720

Shank HoleDiameter

Set Screw GageLength

HolderPart Number

SetPart NumberThread Part Number

R8

3/16 10-32 x 5/16 7-195-091 1.300 7-160-005

7-160-1055 Pc Set3/16"-3/4"

1/4 1-1/4-28 x 1/4 7-195-110 1.300 7-160-0073/8 3/8-24 x 5/16 7-195-208 1.300 7-160-0101/2 7/16-20 x 25/64 7-195-314 1.300 7-160-0155/8 9/16-18 x 15/32 7-195-412 1.496 7-160-0203/4 5/8-18 x 1/2 7-195-513 2.362 7-160-0257/8 5/8-18 x 1/2 7-195-513 2.736 7-160-030

7-160-1088 Pc Set

3/16"-1-1/4"

1 3/4-16 x 19/32 7-195-615 3.228 7-160-0351-1/4 3/4-16 x 19/32 7-195-615 3.228 7-160-0401-1/2 3/4-16 x 19/32 7-195-615 3.740 7-160-045

End Mill Holders with MT Shank• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell End Mill Pilot T.I.R. < 0.0004"• Each set is provided with a wooden case• 7/8" holders and larger are provided with two set screws

Style “A” Tanged

Style “B” Draw Bar

Draw Bar Threads:MT2 3/8"- 16MT3 3/8" - 16MT4 1/2" - 13MT5 5/8" - 11

** Holders are only for single end mills

End Mill Holders with R8 Shank• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell End Mill Pilot T.I.R. < 0.0004"• Each set is provided with a wooden case• Draw bar thread: 7/16"-20

8 PieceHolder Set

Type 7820


MACH

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RIESBISON


End Mill Holders with NMTB Quick Change• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• Shell end mill pilot T.I.R. < 0.0004"• Produced according to AT3 specifications• Draw bar threads:

30 1/2" - 1340 5/8" - 1150 1" - 8

NSTTaper

HoleDiameter

GageLength

L

Set Screw HolderPart Number

SetPart NumberThread Part Number

30

3/16 2 10-32 x 5/16 7-195-091 7-165-005Q

7-165-300Q7 Pc Set

7-165-307Q8 Pc Set

1/4 2 1/4-28 x 1/4 7-195-110 7-165-007Q3/8** 2 3/8-24 x 5/16 7-195-208 7-165-010Q1/2** 2 7/16-20 x 25/64 7-195-314 7-165-015Q5/8** 2.5 9/16-18 x 15/32 7-195-412 7-165-020Q3/4** 2.5 5/8-18 x 1/2 7-195-513 7-165-025Q7/8** 4 5/8-18 x 1/2 7-195-513 7-165-026Q**1** 4 3/4-16 x 19/32 7-195-615 7-165-027Q**

40

3/16 2 10-32 x 5/16 7-195-091 7-165-030Q

7-165-400Q9 Pc Set

7-165-409Q10 Pc Set

1/4 2 1/4-28 x 1/4 7-195-110 7-165-032Q3/8** 2 3/8-24 x 5/16 7-195-208 7-165-035Q1/2** 2 7/16-20 x 25/64 7-195-314 7-165-040Q5/8** 2.5 9/16-18 x 15/32 7-195-412 7-165-045Q3/4** 2.5 5/8-18 x 1/2 7-195-513 7-165-050Q7/8** 3.5 5/8-18 x 1/2 7-195-513 7-165-055Q1** 3.5 3/4-16 x 19/32 7-195-615 7-165-060Q

1-1/4** 4 3/4-16 x 19/32 7-195-615 7-165-065Q**1-1/2** 4 3/4-16 x 19/32 7-195-615 7-165-070Q**

50

3/16 2.75 10-32 x 5/16 7-195-091 7-165-073Q

7-165-510Q10 Pc Set

3/8 2.75 3/8-24 x 5/16 7-195-208 7-165-075Q1/2 2.75 7/16-20 x 25/64 7-195-314 7-165-080Q5/8 2.75 9/16-18 x 15/32 7-195-412 7-165-085Q3/4 2.875 5/8-18 x 1/2 7-195-513 7-165-090Q7/8** 2.875 5/8-18 x 1/2 7-195-513 7-165-095Q1** 3.5 3/4-16 x 19/32 7-195-615 7-165-100Q

1-1/4** 3.5 3/4-16 x 19/32 7-195-615 7-165-105Q**1-1/2** 4 3/4-16 x 19/32 7-195-615 7-165-110Q**2** 4.6875 1-14 x 53/64 7-195-820 7-165-115Q**

End Mill Holder Set Screws

Thread Part Number5/8-18x19/32 7-195-5173/4-16x19/32 7-195-6153/4-16x5/8 7-195-6163/4-16x45/64 7-195-6183/4-16x1-3/16 7-195-6303/4-16x1-1/4 7-195-6323/4-16x1-13/32 7-195-6361-14x15/16 7-195-824

** Holders are only for single end mills.

Thread Part Number1/4-28x5/16 7-195-1081/4-28x1/4 7-195-1105/16-24x1/4 7-195-1203/8-24x25/64 7-195-2103/8-24 x 19/32 7-195-2137/16-20x5/8 7-195-3017/16-24x15/32 7-195-3129/16-18x15/32 7-195-4125/8-18x1/2 7-195-513

Type 7620


BISON


Shell Reamer Arbors• Made of alloy forged steel for a long durable service life• Hardened to RC 56-60 and ground to ensure maximum accuracy• T.I.R. < 0.0004"• Arbors are provided with an ejecting nut, collar, and key

SizeNumber

ArborDiameter

D

TaperLengthE

Fits ShellReamer

OALL

WrenchSize

EjectCollar

Part Number

ArborKey

Part Number

MT Shank Straight Shank

TaperNumber

PartNumber

Shankd

PartNumber

4 3/8 2-1/4 21/32 to 25/32 9 19/32 7-068-904 7-068-804 2 7-067-004 1/2 7-068-0045 1/2 2-1/2 13/16 to 1-1/32 9-1/2 25/32 7-068-905 - 2 7-067-005 5/8 7-068-0056 5/8 2-3/4 1-1/16 to 1-9/32 10 7/8 7-068-906 7-068-806 3 7-067-006 3/4 7-068-0067 3/4 3 1-5/16 to 1-5/8 11 1-1/16 7-068-907 7-068-807 3 7-067-007 7/8 7-068-0078 1 3-1/2 1-11/16 to 2 12 1-7/16 7-068-908 7-068-808 4 7-067-008 1-1/8 7-068-0089 1-1/4 3-3/4 2-1/16 to 2-1/2 13 1-13/16 7-068-909 7-068-809 4 7-067-009 1-3/8 7-068-00910 1-1/2 4 2-9/16 to 3 14 2-3/16 7-068-910 7-068-810 5 7-067-010 1-5/8 7-068-01011 1-3/4 4-1/2 3-1/16 to 3-1/2 15 2-9/16 7-068-911 7-068-811 5 7-067-011 2 7-068-01112 2 5 3-9/16 to 4 16 3-1/8 7-068-912 7-068-812 5 7-067-012 2-1/8 7-068-012

Type 5310 Type 5312

Straight Shank: Type 5310

MT Shank: Type 5310


MACH

ININ

GACCESSO

RIESBISON


Type 1875

Solid Sockets with MT Hole• Sockets are made of alloy forged steel for a long durable service life• Morse taper seat T.I.R. <0.0004"• Hardened to RC 56-60 and ground to ensure maximum accuracy

SocketNumber

OALL

MTHole

ODD Part Number

13-1/2 1

1 7-400-0052 1-1/4 7-400-0103 1-1/2 7-400-0154

4 2

1 7-400-0205 1-1/4 7-400-0256 1-1/2 7-400-0307 1-3/4 7-400-0358 2 7-400-0409

4-3/4 3

1-1/4 7-400-04510 1-1/2 7-400-05011 1-3/4 7-400-05512 2 7-400-06013

6 41-1/2 7-400-065

14 1-3/4 7-400-07015 2 7-400-07516

7-3/8 52-1/4 7-400-080

17 2-1/2 7-400-08518

10-1/86 3-1/4 7-400-090

19 6 3-1/2 7-400-095

D

L


BISON


MTHoleK1

MTShank

K

OALL

Wtlbs

LengthA

DiameterD

Soft,HardenedTang Only

PartNumber

31

7-1/4 0.88 4-3/4 1-13/32 7-406-0032 6-1/4 0.75 3-7/8 1-3/16 7-406-0051

2

6-1/4 0.55 3-11/32 25/32 7-406-0102 6-7/8 0.88 4 1-3/16 7-406-0153 7-3/4 1.85 4-3/4 1-13/32 7-406-0204 8-1/2 2.05 5-3/4 1-7/8 7-406-0251

3

6-7/8 0.88 3-3/16 25/32 -2 7-5/8 1.21 4 1-3/16 7-406-0353 8-1/2 1.89 4-3/4 1-13/32 7-406-0404 9-1/2 2.6 5-3/4 1-7/8 7-406-0455 10-1/2 2.73 7-1/8 2-1/2 7-406-0501

4

7-1/2 1.76 3-1/4 25/32 7-406-0552 8-1/2 1.87 3-27/32 1-3/16 7-406-0603 9-1/2 2.86 4-13/16 1-13/32 7-406-0654 10-1/2 4.18 5-13/16 1-7/8 7-406-0705 11-7/8 7.28 7-3/16 2-1/2 7-406-0753

5

10-1/2 4.73 4-24/32 1-13/32 7-406-0854 11-7/8 6.05 5-15/16 1-7/8 7-406-0905 13-1/4 9.24 7-5/16 2-1/2 7-406-0956 15-3/8 14.08 9-23/32 3-7/32 7-406-1004

614 11.92 5-23/32 1-7/8 7-406-105

5 15-3/8 14.85 7-3/32 2-1/2 7-406-110

MTHoleK1

MTShank

K

OALL

Wtlbs

Hardenedand GroundThroughout

PartNumber

1 2 3-5/8 0.22 7-450-0051

33-7/8 0.48 7-450-010

2 4-3/8 0.42 7-450-0151

44-7/8 1.1 7-450-020

2 5 0.99 7-450-0253 5-1/2 0.88 7-450-0301

5

6-1/8 3.19 7-450-0352 6-1/8 3.34 7-450-0403 6-1/8 2.99 7-450-0454 6-3/4 2.09 7-450-0504

68-5/8 7.92 7-450-055

5 8-5/8 5.61 7-450-060

Type 1751 Type 1762

Regular Length Extension LengthK

L

K1

A

D

L

K K1

Morse Taper Sleeves• Sleeves are made of alloy forged steel for long durable service life• Sleeve Type 1751 is hardened to RC 56-60 and

ground throughout to ensure maximum accuracy• Sleeve Type 1752 is soft with hardened tang only• Taper seat T.I.R. <0.0004"


MACH

ININ

GACCESSO

RIESBISON


Milling Machine Adapters with Draw Bar Endfor changing from NST Shank to MT Socket

NSTShank

MTSocket

Wtlbs

Draw BarThread

GageLength

PartNumber

402 1.98

5/8-111.969 7-100-005Q

3 2.2 2.559 7-100-010Q4 3.09 3.740 7-100-015Q

50

2 9.26

1-8

0.906 7-100-024Q3 9.26 1.299 7-100-025Q4 8.16 2.087 7-100-030Q5 6.61 3.386 7-100-035Q

for changing from R8 Shank to MT Socket

Shank MTSocket

Wtlbs

Draw BarThread

PartNumber

R82 0.71

7/16 - 207-115-005

3 0.86 7-115-010

Draw bar threads:40 5/8" - 1150 1" - 8

Type 1657

Type 1855

Drill Drifts, Hardened and Zinc PlatedSize H Length

L

Fits MTSockets and

SleevesNumber

PartNumber

1 .80 4.6 1 7-451-0012 .80 5.6 2 7-451-0023 1.0 6.2 3 7-451-0034 1.25 7.0 4-5-6 7-451-004

Set of 4 1-6 7-451-010

Milling Machine Adaptersfor changing from NST taper to smaller NST taper• NST shanks are produced according to AT3 specifications• Made of alloy forged steel for a long durable service life• Taper seat T.I.R. <0.0004"• Hardened to RC 56-60 and ground to ensure maximumaccuracy

NSTShank

NSTSocket

Wtlbs

PartNumber

40 30 1.76 7-110-00550 30 4.52 7-110-01050 40 3.86 7-110-015

for changing from NST Shank to MT SocketNST

ShankMT

SocketWtlbs Part Number

403 1.15 7-090-0104 1.26 7-090-015

50 5 5.84 7-090-030

Type 1655

Type 1650

• Used for removing MT shanks from MT sleeves or spindles• Use drill drift size #1 for MT 1, size #2 for MT2, etc.• Fully drop forged

for changing from NST/NMTB Shank to R8 Socket

NSTShank

R8Socket

Wtlbs

Draw BarThread

GageLength

PartNumber

40R8

3.26 5/8 - 11 3.410 7-105-00550 7.28 1 - 8 2.685 7-105-010

,Adapters are provided with the screw (inside) to hold tools with 7/16-20 R8 shankTo hold adapter in the spindle use draw bar with standard thread

Type 1640


BISON


Annular Cutter Holders• Straight, R8 or MT shank• Holder shank allows different machines to drive cutter• Easily reaches out of the way places• Select adapter lengths reduce the number of

machine set ups

Square Drive

Type SquareDrive Size

ReamerShank OAL Part

NumberHEN-1BRA 3/4" MT2 5-1/2" 7-985-001HEN-2BRA 3/4" MT3 6" 7-985-002HEN-3BRA 3/4" MT4 7" 7-985-003HEN-4BRA 1" MT2 5-1/2" 7-985-004HEN-5BRA 1" MT3 6-1/2" 7-985-005HEN-6BRA 1" MT4 7-1/2" 7-985-006

# 5 Spline DriveHEN-7BRA #5 MT3 7-1/4" 7-985-007HEN-8BRA #5 MT4 8-1/2" 7-985-008

Straight Shank - 3 Flats

Type ShankSize

CutterShank Size

GageLength

PartNumber

HEN-1 1/2" 3/4" 2-1/8" 7-980-100HEN-2 3/4" 3/4" 2" 7-980-200HEN-2-6 3/4" 3/4" 3" 7-980-206HEN-2-12 3/4" 3/4" 12" 7-980-212HEN 6-6 3/4" 1-1/4" 6" 7-980-606HEN 6-12 3/4" 1-1/4" 12" 7-980-612

Straight Shank - 2 Flats

Type ShankSize

CutterShank Size

GageLength

PartNumber

HEN-9-6 3/4" 3/4" 6" 7-983-906HEN-9-12 3/4" 3/4" 12" 7-983-912

Morse Taper ShankHEN-3 MT2 3/4" 2" 7-981-300HEN-3-6 MT2 3/4" 6" 7-981-306HEN-3-12 MT2 3/4" 12" 7-981-312HEN-4 MT3 3/4" 2" 7-981-400HEN-4-6 MT3 3/4" 6" 7-981-406HEN-4-12 MT3 3/4" 12" 7-981-412HEN-8 MT3 1-1/4" 2-3/4" 7-981-800

HEN-8-6 MT3 1-1/4" 6" 7-981-806HEN-8-12 MT3 1-1/4" 12" 7-981-812

R8 ShankHEN-5 R8 3/4" 1-3/4" 7-982-500HEN-5-6 R8 3/4" 6" 7-982-506

Bridge Reamer Holders

Spare ejecting spring is availablePart Number -7-980-900H


MACH

ININ

GACCESSO

RIESBISON


TaperShank

K

ChuckMount

K1L I Wt

lbsPart

Number

R8

J1 5 0.27 0.87 7-052-801J2 5.18 0.25 0.90 7-052-802J3 5.57 0.30 1.04 7-052-803J6 5.27 0.22 1.03 7-052-806J33 5.35 0.30 0.94 7-052-833

L1

d1

D 0,0

01

5

2"

K

G

Integral Shank Drill ChucksNST/NMTB-QC Taper• Draw bar threads:

40 5/8" - 11

TaperShank

K

ChuckCapacity

d1D G L1

WrenchPart

Number

Wtlb.

ChuckPart

Number

401/32" - 1/2" 2

5/8" - 11"3.46

7-188-932K4.4 7-048-420Q

1/8" - 5/8" 2-1/4" 3.90 5.3 7-048-430Q

Precision Drill Chuck ArborsNST/NMTB-QC to Jacobs Taper• Draw bar threads: 30 1/2" - 13

40 5/8" - 1150 1" - 8

TaperShank

K

ChuckMount

K1A Wt

lbsPart

Number

30

J1

.47 1.3

7-052-031QJ3 7-052-033QJ33 7-052-0333QJ6 7-052-036Q

40

J1

.55 2.2

7-052-041QJ2 7-052-042QJ3 7-052-043QJ33 7-052-0433QJ6 7-052-046Q

50

J3

.71 5.9

7-052-053QJ33 7-052-0533QJ4 7-052-054QJ5 7-052-055QJ6 7-052-056Q

R8 to Jacobs Taper• Draw bar threads: 7/16" - 20

K

K1

l

L

Type 5355

Type 5370

Type 7657


BISON


Precision Drill Chuck Arbors

K1

L

K

l

TaperShank

K

ChuckMount

K1L I Wt

lbsPart

Number

1

1 3.3 0.2 0.22 7-052-1012 3.5 0.2 0.15 7-052-1023 4.0 0.3 0.26 7-052-1036 3.7 0.3 0.19 7-052-10633 3.7 0.3 0.18 7-052-133

2

1 4.0 0.4 0.27 7-052-2012 4.2 0.3 0.31 7-052-2023 4.4 0.3 0.42 7-052-2036 4.2 0.3 0.39 7-052-20633 4.2 0.3 0.38 7-052-233

3

2 5.0 0.4 0.63 7-052-3023 5.2 0.3 0.82 7-052-3034 5.7 0.4 1.03 7-052-3045 6.0 0.5 1.40 7-052-3056 5.0 0.4 0.66 7-052-30633 5.0 0.3 0.72 7-052-333

4

3 6.3 0.5 1.43 7-052-4034 6.7 0.4 1.72 7-052-4045 6.9 0.4 2.10 7-052-4056 6.1 0.5 1.35 7-052-40633 6.1 0.5 1.33 7-052-433

5

3 7.6 0.5 3.36 7-052-5034 8.0 0.5 3.67 7-052-5045 8.2 0.5 4.05 7-052-5056 7.3 0.5 3.30 7-052-50633 7.4 0.6 3.30 7-052-533

Straight ShankL

JacobsTaper

K1

Wtlbs

PartNumberD I

1/2

2-1/2

3.1 0 0.15 7-052-7003.3 1 0.16 7-052-7013.5 2 0.20 7-052-7023.9 3 0.32 7-052-7033.7 33 0.23 7-052-70333.7 6 0.25 7-052-706

5/8

3.3 1 0.25 7-052-7213.5 2 0.28 7-052-7223.9 3 0.40 7-052-7233.5 33 0.30 7-052-72334.3 4 0.68 7-052-7243.6 6 0.32 7-052-726

3/4

3

4.0 2 0.44 7-052-7424.3 3 0.55 7-052-7434.1 33 0.47 7-052-74334.8 4 0.84 7-052-7444.1 6 0.48 7-052-746

1

4.1 2 0.75 7-052-7624.3 3 0.86 7-052-7634.2 33 0.77 7-052-76334.8 4 1.13 7-052-7644.2 6 0.80 7-052-766

K1

L

l

D

Straight to Jacobs Taper

Morse Taper to Threaded Mount

Morse TaperShank

K

ThreadG L L1 L2 Wt

lb.Part

Number

23/8-24 3.7 .6 .197 .26 7-052-6101/2-20 4.0 .6 .472 .33 7-052-6135/8-16 4.1 .7 .500 .37 7-052-616

Morse Taper to Jacobs Taper

Type 5353Type 5362

Type 7470


MACH

ININ

GACCESSO

RIESBISON


L

K

DDd

L1

Precision Ball Bearing Keyless Drill Chucks, Heavy Duty• Keyless drill chucks are precision devices designed for

high accuracy applications on either conventional or CNCmachines for drilling, boring, and counterboring operations

• Chucks are tightened and released by hand and have a self-tightening feature

ChuckModel

Capacity d MountK

D L L1 Wtlbs

PartNumberinches mm inches

Precision Chucks 0.005 T.I.R.6/J1 0-1/4 0.3-6 1JT 1.32 2.45 2.68 .66 7-051-06413/J2

1/32-1/2 1-132JT

2 3.8 4.3 2.27-051-135

13/J33 33JT 7-051-13713/J6 6JT 7-051-13816/J6

1/8-5/8 3-166JT

2.34.06 4.65 3.1 7-051-168


13/J21/32-1/2 1-13

2J2 3.8 4.3 2.2

7-051-33513/J33 33J 7-051-33713/J6 6J 7-051-33816/J6

1/8-5/8 3-166J

2.34.06 4.65 3.1 7-051-368

16/J3 3J 4.33 4.9 3.3 7-051-369

Universal Drill ChucksKey Type• Chucks are provided with key

CapacityMount

Wtwithout Key

lbs

PartNumberinches mm

3/8 103/8-24

.487-053-002

1/2-20 7-053-004

1/2 131/2-20

.807-053-014

33JT 7-053-0156JT 7-053-016

5/8 16 5/8-16 1.30 7-053-025

CapacityMount OD

Wtwithout Key

lbs

PartNumberinches mm

3/8 103/8-24

1.68 .807-053-002G

1/2-20 7-053-004G

1/2 131/2-20

2.091.45

7-053-014G33JT 7-053-015G6JT 7-053-016G

5/8 16 5/8-16 1.35 7-053-025G

Heavy Duty Drill ChucksKey Type• Chucks are provided with key


BISON


ToolpostSize H B B1 C D E F G

maxG

minBarDia

Pmax

Pmin MT J K

maxK

min L N M

T.2 2.81 1.75 .315 1.00 2.93 .748 .748 2.07 1.44 .748 1.81 .945 2 2.56 1.87 1.06 3.82 1.32 1.00T.2.T 2.99 1.75 .315 1.00 3.31 1.00 1.00 2.30 1.56 .748 1.97 .945 2 2.76 2.01 1.06 4.17 1.32 1.00T.3 3.76 2.00 .386 1.00 4.00 1.24 1.00 2.93 2.01 1.00 2.01 1.12 3 3.37 2.29 1.44 4.94 1.56 1.50

Principal Dimensions

Toolpost Sets and Individual ToolholdersType4494

Our full selectionof toolholders andboring bars can befound in the TMXIndexable CarbideCatalog availableon our website,www.toolmex.com.

Quick Change Tool Posts• Easy to set up on the lathe• Three different quick change toolholders

can be mounted on the toolpost

Type 4414Type4498

Type4497

Type4496

Type4495

ToolHolder

LatheCapacity Description Wt

lbs b x h MTHole d

HoleDiameter

D

PartNumber

SetPart

Number

T.2 5" to 8"

T and F, Type 4494 2.20 3.88 x 1.97 - - - 7-196-9482

7-196-01T2V-Grove, Type 4495 2.20 - - .748 - 7-196-9582MT, Type 4497 2.65 - 2 - - 7-196-9782B. Bar,Type 4498 3.31 - - - 1.00 7-196-9882

T.2.T 5" to 8"

Tool Post, Type 4414 12.8 3.23 x 3.00 - - - 7-197-0T2T

7-197-1T2TT and F, Type 4494 2.43 3.88 x 2.24 - - - 7-197-9484V-Grove, Type 4495 2.43 - - .748 - 7-197-9582Cut Off, Type 4496 3.17 3.88 x 2.24 - - - 7-196-9682MT, Type 4497 2.65 - 2 - 1.00 7-196-9782

T.38" to11.5"

Tool Post, Type 4414 24.0 3.94 x 3.62 - - - 7-198-00T3

7-198-01T3T and F, Type 4494 4.40 4.88 x 2.76 - - - 7-198-9410V-Grove, Type 4495 4.40 - - 1.00 - 7-198-9510Cut Off, Type 4496 5.51 4.88 x 2.76 - - - 7-198-9610B. Bar,Type 4498 5.73 - - - 1.500 7-198-9810

iToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

INDEX BY PART NUMBER

BISON

PartNumberPrefix

Page Number Group Description

6-998 151, 222 Hex Keys

6-999 36, 114, 136, 151, 162, 222 Hex Keys

7-010 218 Milling Machine Arbors, Style A

7-015 219 Milling Machine Arbors, Style B

7-020 173, 220 Arbor Spacers

7-025 220 Arbor Running Bushings

7-030 220, 221 Nuts for Machine Arbors

7-048 233 Keyless Drill Chucks w Integral Taper Shank

7-050 224 Shell End Mill Arbors, Style A

7-051 182, 197, 199, 235 Precision Ball Bearing Keyless Drill Chucks

7-052 233, 234 Precision Drill Chuck Arbors

7-053 235 Universal Drill Chucks, Key Type

7-060 225 Shell End Mill Arbors, NST/NMTB

7-064 223 Shell End Mill Holders, Weldon Shank

7-065 224 Shell End Mill Arbors, R8

7-067 228 Shell Reamer Arbors, Morse Taper Shank

7-068 228 Shell Reamer Arbors, Straight Shank

7-070 221 Stub Milling Machine Arbors, R8 Shank

7-072 221 Stub Milling Machine Arbors,Weldon Shank

7-075 225 Shell E/M Arbors, 4" Ext, NST/NMTB

7-080 172, 192, 224 Shell End Mill Arbors, Spare Parts

7-090 231 Open End Adapters, NST to MT

7-100 231 Draw Bar Adapters, NST to MT

7-105 231 Draw Bar Adapters, NST to R8

7-110 231 Open End Adapters, NST to NST

7-115 231 Draw Bar Adapters, R8 to MT

7-120 222 Slitting and Slotting Saw Arbors

7-121 222 Slotting Saw Arbor, Weldon Shank

7-123 222 Slitting and Slotting Saw Arbors, Heavy Duty

7-132 209 NST/NMTB Quick Change TG Collet Chuck

7-150 226 MT End Mill Holders, Style B, Draw Bar End

7-155 226 MT End Mill Holders, Style A, Tanged End

7-160 226 R8 End Mill Holders

7-161 209 R8 TG Collet Chuck

7-164 146, 205 Precision 16C Collets

ii Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

BISONINDEX BY PART NUMBER

PartNumberPrefix


7-165 227 NST/NMTB End Mill Holders

7-166 209, 210 TG Precision Single Angle Collets

7-167 175, 207 DA Collets and Collet Chucks

7-168 114, 144, 204, 208 Precision 5C Collets

7-169 206 Precision R8 Spring Collets

7-170 223 Face Mill Holders with NST and MT Shanks

7-171 189, 200, 211, 212, 213, 214, 215 ER Precision Spring Collets and Collet Chucks

7-172 195 BT Flange TG Collet Chucks

7-173 190 BT Flange MT Adapters

7-174 196 BT Flange Integral Drill Chucks

7-175 190 BT Flange Jacobs Taper Holders

7-176 192 BT Flange Shell End Mill Adapters

7-177 194 BT Flange DA Collet Chucks

7-178 193, 214, 215 BT Flange ER Collet Chucks

7-179 191 BT Flange End Mill Holders

7-180 176, 195, 209, 213 CAT V-Flange TG Collet Chucks

7-181 180 CAT V-Flange Jacobs Taper Holders

7-182 180 CAT V-Flange Face Mill Holders

7-183 181 CAT V-Flange MT Adapters

7-184 181 CAT V-Flange Adapter for NST Taper

7-185 170, 171 CAT V-Flange End Mill Holders

7-186 172 CAT V-Flange Shell End Mill Adapters

7-187 182 CAT V-Flange Integral Drill Chucks

7-188 177, 178, 179, 193, 196, 200, 213,214, 215, 233 CAT V-Flange ER Collet Chucks

7-189 179, 216, 217 Accessories for CNC Machines

7-191 173 CAT V-Flange Stub Arbor Holders

7-192 174 CAT V-Flange Slitting Saw Holders

7-193 175, 208 CAT V-Flange DA Collet Chucks

7-195 170, 191, 198, 227 Screws for End Mill Holder,CAT,BT,MT,NST,R8

7-196 236 Quick Change Toolpost and Holder,127mm-203mm

7-197 236 Quick CHange Toolpost and Holder,127mm-203mm

7-198 236 Quick Change Toolpost and Holder,203mm-292mm

7-223 168 Precision Milling Mach Vises for CNC Machines

7-301 189 ER Intgral Shank Tension/Compression Tap Holders

7-305 200 HSK DIN69893 FormA ER Collet Chucks

iiiToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


BISON

PartNumberPrefix


7-306 198 HSK DIN69893 FormA End Mill Holders

7-309 199 HSK DIN69893 FormA Jacobs Taper Holder

7-311 199 HSK DIN69893 FormA Integral Shank Drill Chucks

7-320 183 Milling Chucks, CT Shank, 0.0002in T.I.R.

7-321 183 Precision Milling Chucks

7-336 184 BT-Flange Tension/Compression Tap Holders

7-337 185 BT-Flange Rigid Tap Holders

7-338 184 CAT V-Flange Tension/Compression Tap Holders

7-339 185 CAT V-Flange Rigid Tap Holders

7-340 185, 186 Quick Chg Positive Drive Tap Adapters

7-341 187 Quick Chg Torque Control Tap Adapters

7-343 188 Rigid Tapping Chuck, Cylindrical Shank

7-344 188 T/C Tapping Chuck with Cylinder Shank

7-366 201 Collet Chucks for ER Collets, Type 1220

7-386 201 VDI Toolholders, Round Blanks

7-387 201 VDI Toolholders,DIN69880 Blank Rectangle

7-388 202 Toolholder Bushings Type B

7-389 202 Toolholder Bushings Type CV

7-400 229 Solid Sockets Hardened

7-406 230 MT Ext. Sockets Soft

7-450 230 MT Sleeves Hardened 'H'

7-451 231 Drill Drifts, Heavy Duty, Zinc Plated

7-460 114, 116, 144, 204 5C Round Collet Stops

7-540 159, 164 Half Dead Centers Carbon Steel

7-541 159 Half Dead Centers Carbide Tipped

7-545 159 Dead Centers with Nut

7-546 159 Dead Center with Nut Carbide Tipped

7-550 159 Lathe Centers Carbide

7-555 159 Lathe Centers Ball Bearing Steel

7-565 154 BISON Live Centers

7-566 153 NC Quad-Bearing Live Centers High Speed

7-567 154 BISON Live Center Accuracy .00012 T.I.R.

7-568 155 Live Centers, Heavy Duty

7-570 156 Live Center with Interchangeable Inserts

7-573 111, 152 Pipe Live Center with Intrchangeable Heads

iv Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


PartNumberPrefix


7-575 153 BISON Bull Nose and Pipe Live Centers

7-590 157 Automatic Face Drivers with MT Shank, Parts

7-591 158 HD Automatic Face Drivers with MT Shank

7-609 160, 161, 162 H/V Super Spacer with Interchangeable Plates

7-610 161, 164, 165 H/V Indexing Super Spacer Accessories and Parts

7-613 162 Horizontal/Vertical Index Super Spacer

7-621 163 Rotary Table Horizontal/Vertical Indexing Type

7-622 163 Dividing Plate for Rotary Table Type 5859

7-630 32, 78, 166 Base Plates for Plain Back Scroll Chucks

7-640 167 4-Jaw Self-Centering Machine Fixtures and Parts

7-645 98 Face Plate Jaws for Radial T-Slot Tables

7-775 142, 143, 145, 205 Power Operated Collet Chucks and Parts

7-781 127, 129, 130, 131 3-Jaw Large Thru-Hole Power Chucks

7-784 150 Pneumatic Spring Power Chucks

7-785 147, 148, 149 Pneumatic Power Chucks and Parts

7-786 137 Hard Top Jaws for Pneumatic Power Chucks

7-787 127, 133, 136 Jaws - Hard Top for Power Chucks

7-788 127, 133 Jaws - Soft Top for Power Chucks

7-789 130, 133, 134, 135, 136, 142, 145, 147, 205 Parts and Adapters for Power Chucks

7-790 147 Spare Parts for Pneumatic Oil Chucks.

7-796 139, 142 Hydraulic Cylinder Type 1304-G

7-797 141, 142, 143 Hydraulic Cylinder w Thru Hole Hi-Speed

7-799 21, 38, 83, 127 Chuck Grease for Bison Manual Chucks

7-800 53, 73 3-Jaw(2Pc)Scroll Chuck SemiSteel PlainBk

7-801 56 3-Jaw(2Pc) Scroll Chuck SemiSteel TaperA

7-803 58 3-Jaw(2Pc) Scroll Chuck S-Steel CamLockD

7-804 59 3-Jaw(2Pc) Scroll Chuck S-Steel LongTapr

7-805 60 3-Jaw(2Pc) Scroll Chuck S-Steel Threaded

7-809 57 3-Jaw(Sol) Scroll Chuck S-Steel CamLockD

7-810 53, 119, 120 3-Jaw(Sol) Scroll Chuck S-Steel PlainBk

7-811 75 3-Jaw(Sol) Scroll Chuck S-Steel FrontMnt

7-812 76 3-Jaw(2Pc) Scroll Chuck S-Steel FrontMnt

7-813 76, 161, 162 3-Jaw(2Pc) Scroll Chuck Steel FrontMnt

7-814 76, 161 4-Jaw(2Pc) Scroll Chuck S-Steel FrontMnt

7-816 81 3-Jaw(Sol) Scroll Chuck wDbl Jaw Guide

vToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


BISON

PartNumberPrefix


7-819 74 3-Jaw(2Pc) Scroll Chuck S-Steel Plain Bk

7-820 39, 73 3-Jaw(2Pc) Scroll Chuck Steel Plain Bk

7-821 41 3-Jaw(2Pc) Scroll Chuck Frg Steel TaperA

7-823 42 3-Jaw(2Pc) Scroll Chuck Steel CamlockD

7-825 107 3-Jaw(2Pc) Scroll Chuck Forg Steel ExtHD

7-827 23 2-Jaw SET-TRU Chuck Forg Steel Plain Bk

7-829 39 3-Jaw(Sol) Scroll Chuck Steel, Plain Bk

7-830 54 2-Jaw(2PC) Scroll Chuck S-Steel, PlainBk

7-840 54 4-Jaw(2PC) Scroll Chuck S-Steel PlainBk

7-841 39 4-Jaw(2PC) Scroll Chuck Steel Plain Bk

7-843 112 Rotating Chuck, Heavy Duty with MT Shank

7-845 54 4-Jaw(Sol) Scroll Chuck S-Steel PlainBk

7-847 24 4-Jaw SET-TRU Chuck ForgSteel PlainBk

7-848 79 4-Jaw(Sol) Combin. Chuck S-Steel Plain

7-849 79 4-Jaw(Sol) Combin. Chuck, Steel. Plain

7-850 85, 94, 119 4-Jaw Independent Chuck Semi-Steel Plain

7-851 87, 90 4-Jaw(Sol) Indep Chuck S-Steel TaperA

7-852 90 4-Jaw(Sol) Indep Chuck Semi-Steel, threaded Direct Mount

7-853 89 4-Jaw(Sol) Indep Chuck S-Steel CamlockD

7-854 90 4-Jaw(Sol) Indep Chuck S-Steel LongTaper

7-855 84 4-Jaw(2PC) Indep Chuck SteelBody PlainBk

7-856 86 4-Jaw(2PC) Indep Chuck Steel TaperA

7-857 88 4-Jaw(2PC) Indep Chuck Steel CamlockD

7-859 100 4-Jaw(2PC) Indep Chuck Steel ExtraHD

7-860 111 3-Jaw(Sol) Rotating Chuck S-Steel MT Shk

7-861 110, 111 3-Jaw SET-TRU Rotating Chuck Steel MT Sh

7-862 113, 114, 115, 116, 117,142, 145, 203, 205 Steel Body Collet Chucks and Parts

7-864 121 3-Jaw Quick Clamping Scroll Chucks

7-865 111 3-Jaw(2PC) Rotating Chuck Steel MT Shk

7-866 23, 118 3-Jaw SET-TRU Chuck Forged Steel, 2 Piece Jaws

7-866-8 23,32 3-Jaw SET-TRU Chuck Forged Steel, Solid Jaws

7-868 24, 118 6-Jaw SET-TRU Chuck Forged Steel, 2 Piece Jaws

7-868-8 24,32 6-Jaw SET-TRU Chuck Forged Steel, Solid Jaws

7-869 122 3-Jaw Quick Clamping Scroll Chucks

7-870 62, 91, 115 Backplates Rough Cast for Scroll/Independent Chucks

vi Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


PartNumberPrefix


7-871 43, 63, 91, 115 Backplates Semi-finished Threaded

7-872 32, 78, 166 Chuck Baseplates Fully Machined

7-873 45, 65, 92, 117 Backplates TaperA for Scroll/Independent Chucks

7-874 27, 116, 117 Backplates TaperA for SET-TRU Chucks

7-875 28, 117 Backplates CamlockD for SET-TRU Chucks

7-876 29, 117 Backplates Threaded for SET-TRU Chucks

7-877 115 Backplates TaperA for 5C-Collet Chucks

7-878 44, 64, 93, 117 Backplates CamlockD for Chucks

7-879 46, 66, 117 Type L Adapters

7-879-9 31, 117 Backplates "L" Taper for Scroll Chucks

7-880 34, 49, 70, 77, 110, 111, 124 Jaws Hard Solid OD f BISON Scroll Chucks

7-881 34, 49, 70, 77, 110, 111, 124 Jaws Hard Solid ID f BISON Scroll Chucks

7-882 35, 50, 71, 115, 120, 124 Jaws Soft Blank for BISON Scroll Chucks

7-88333,48, 51, 69, 73, 74, 81, 108, 110,

111, 112, 167, 167Jaws Hard Top for Scroll Chucks

7-884 35, 50, 71, 77, 96, 110, 111, 112, 112 Jaws Soft Top for Scroll/Ind Chucks

7-88533, 48, 68, 73, 74, 77, 81, 108,

110, 111, 112, 124, 167Jaws Hard Master for BISON Scroll Chucks

7-886 37, 51, 72, 73, 74, 77, 80, 81, 108,110, 111, 112, 114, 115, 116, 117, 167 Pinions for BISON Scroll Chucks

7-88736, 51, 72, 73, 74, 77, 80, 81, 108,110, 111, 112, 114, 115, 116, 117,

120, 124, 167Scroll Plates for BISON Scroll Chucks

7-888 51, 72, 73, 81, 108 Retain Halfring Screw Sleeve for Scroll Chucks

7-88936, 51, 72, 73, 74, 77, 81, 97, 108,110, 111, 114, 115, 117, 120, 124

Wrenches for BISON Scroll Chucks

7-890 95, 95, 96, 101, 103, 104, 105 Spare Parts for 4-Jaw Independent BISON Chucks

7-891 80 Spare Parts for 4-Jaw Combination BISON Chucks

7-892 124 Spare Parts for BISON Quick Clamping Chucks

7-893 120 Spare Parts for 7-810-0214

7-89736, 37, 40, 41, 55, 72, 73, 74, 86, 87,

102, 108, 110, 116, 117, 118, 134, 142Screw for BISON Chuck English and Metric Threads

7-898 84, 85, 117, 117, 143, 151 Socket Head Cap Screws ANSI B18.31986

7-899 37, 42, 57, 88, 89, 102 Camlock Studs for Lathe Chucks

7-909 94 119 5C Fixture Adapters

7-910 118, 1245C Fixture Adapter for 3and6-Jaw QuickkClamping Chucks

7-912 32, 118 5C Fixture Adapters for SET-TRU Chucks

7-913 118, 124 MT Fixture Adaptr for 3 and 6-J Quick Clamping Chucks

7-914 118 MT Adapters for SET-TRU Chucks

viiToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


BISON

PartNumberPrefix


7-920 30, 117 Backplates C Taper for SET-TRU Chucks

7-921 67, 94 Backplates C Taper orf BISON Scroll Chucks

7-922 43, 63, 114 Backplates Threaded for BISON Chucks

7-980 232 Annular Cutter Holder Straight 3-Flat Shanks

7-981 232 Annular Cutter Holders Morse Taper Shank

7-982 232 Annular Cutter Holders R8 Shank

7-983 232 Annular Cutter Holder Strght 2-Flat Shanks

7-985 232 Bridge Reamer Holder Square or #5 Spline

viii Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

BISONINDEX BY BISON MODEL

BISONModel

Number

PartNumberPrefix

PageNumber Description

1117 7-189 217 Universal H/V Heavy Duty Tool Tightening Fixtures

1220 7-366 201 VDI ER Collet Chuck

1254 7-389 202 Toolholder Bushings Type CV

1258 7-388 202 Toolholder Bushings Type B

1304-G 7-796 139 High Speed Hydraulic Cylinders with Closed Center

1305-M 7-797 141 High Speed Hydraulic Cylinders with Thru Hole

1640 7-105 231 Milling Machine Adapters, NST Shank to R8 Socket

1650 7-110 231 Milling Machine Adapters, NST

1655 7-090 231 Milling Machine Adapters, NST Shank to MT Socket

1657 7-100 231 Milling Machine Adapters, Draw Bar End

1661 7-173 190 BT Flange MT Adapters

1684 7-184 181 CAT V-Flange Adapter CAT50 to CAT40

1691 7-183 181 CAT V-Flange MT Adapters

1751 7-450 230 MT Sleeves, Hardened Throughout

1762 7-406 230 MT Sleeves, Hardened Tang Only

1855 7-115 231 Milling Machine Adapters, R8 Shank to MT Socket

1875 7-400 229 Solid Sockets with MT Hole

2405-KA 7-781 127 3-Jaw Power Chucks, TaperA

2500 7-790 147 Bison Air Distribution Ring with O-Ring Set

2500-500-230 7-785 149 3-Jaw Heavy Duty Pneumatic Power Chuck

2842 7-170 223 Face Mill Holders with MT Shank

2904 7-775 142 Power Operated 5C Collet Chucks

2916 7-775 143 A2-5 Direct Mount Power Collet Chucks

3105 7-830 54 2-Jaw Scroll Chuck Semi-Steel

3165 7-827 23 2-Jaw SET-TRU Scroll Chuck Forged Steel

3202 7-816 81 3-Jaw(Sol) Scroll Chuck w Double Jaw Guides

3204 7-810 53 3-Jaw(Sol) Scroll Chuck Semi-Steel

3205 7-800 53 3-Jaw(2Pc) Scroll Chuck Semi-Steel

3215 7-801 56 3-Jaw(2Pc) Scroll Chuck Semi-Steel TaperA

3244 7-809 57 3-Jaw(Sol) Scroll Chuck Semi-Steel CamlockD

3245 7-803 58 3-Jaw(2Pc) Scroll Chuck Semi-Steel CamlockD

3255 7-804 59 3-Jaw(2Pc) Scroll Chuck Semi-Steel Type L

3266 7-864 121, 122 3-Jaw Quick Clamping Scroll Chucks

3274 7-811 75 3-Jaw(Sol) Scroll Chuck Semi-Steel Front Mounting

3275 7-812 76 3-Jaw(2Pc) Scroll Chuck Semi-Steel Front Mounting

3284 7-805 60 3-Jaw(2Pc) Scroll Chuck Semi-Steel Threaded

3285 7-805 60 3-Jaw(2Pc) Scroll Chuck Semi-Steel Threaded

3286 7-810 120 3-Jaw Mini Self Centering Scroll Chucks

3295 7-819 74 3-Jaw(2Pc) Scroll Chuck Semi-Steel Extra Large Thru Hole

3504 7-829 39 3-Jaw(Sol) Scroll Chuck Forged Steel

ixToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

INDEX BY BISON MODEL

BISON

BISONModel

Number

PartNumberPrefix


3505 7-820 39 3-Jaw(2Pc) Scroll Chuck Forged Steel

3515 7-821 41 3-Jaw(2Pc) Scroll Chuck Forged Steel TaperA

3515-HD 7-825 107 3-Jaw(2Pc) Scroll Chuck Forged Steel ExtraHD, TaperA, Direct Mount

3545 7-823 42 3-Jaw(2Pc) Scroll Chuck Fprged Steel CamlockD

3564 7-866-8 23 3-Jaw(Sol) SET-TRU Scroll Chuck Forged Steel

3565 7-866 23 3-Jaw(2Pc) SET-TRU Scroll Chuck Forged Steel

3575 7-813 76 3-Jaw(2Pc) Scroll Chuck Forged Steel Front Mounting

3575-HD 7-825 107 3-Jaw(2Pc) Scroll Chuck Forged Steel ExtraHD, TaperA, Indirect Mount

3604 7-845 54 4-Jaw(Sol) Scroll Chuck Semi-Steel

3605 7-840 54 4-Jaw(2Pc) Scroll Chuck Semi-Steel

3675 7-814 76 4-Jaw(2Pc) Scroll Chuck Semi-Steel Front Mounting

3705 7-841 39 4-Jaw(2Pc) Scroll Chuck Forged Steel


3864 7-868-8 24 6-Jaw(Sol) SET-TRU Scroll Chuck Forged Steel


3866 7-869 122 6-Jaw Quick Clamping Scroll Chucks

3911-5C 7-862 115 Steel Body 5C Collet Chucks

3944-5C 7-862 115 Steel Body 5C Collet Chucks, Direct Mount CamlockD

3960-5C 7-862 116 Steel Body 5C Collet Chucks, SET-TRU

3965 7-862 117 Steel Body 16C Collet Chucks

3974-4 7-862 114 Steel Body 5C Collet Chucks, Mini, Plain Back

3974-5C 7-862 115 Steel Body 5C Collet Chucks, Plain Back, Threaded Nose

3975-5C 7-862 115 Steel Body 5C Collet Chucks, TRU-LENGTH

3984-5C 7-862 115 Steel Body 5C Collet Chucks, Direct Mounr Threaded

4303 7-855 84 4-Jaw(2Pc) Independent Chucks Steel Body

4304 7-850 85 4-Jaw(Sol) Independent Chucks Semi-Steel Body

4307 7-859 100 4-Jaw(2Pc) Independent Chuck Steel ExtraHD, Plain Back

4313 7-856 86 4-Jaw(2Pc) Independent Chucks Steel Body TaperA

4314 7-851 87 4-Jaw(SOL) Independent Chucks Steel Body TaperA

4317 7-859 100 4-Jaw(2Pc) Independent Chuck Steel ExtraHD, TaperA

4343 7-857 88 4-Jaw(2Pc) Independent Chucks Steel Body CamlockD

4344 7-853 89 4-Jaw(Sol) Independent Chucks Semi-Steel CamlockD

4347 7-859 100 4-Jaw(2Pc) Independent Chuck Steel ExtraHD, CamlockD

4354 7-854 90 4-Jaw(Sol) Independent Chucks Semi-Steel TaperL

4384 7-852 90 4-Jaw(Sol) Independent Chucks Semi-Steel Threaded

4605 7-848 79 4-Jaw(Sol) Combination Chucks Semi-Steel

4805 7-849 79 4-Jaw(Sol) Combination Chucks Steel

5310 7-067 228 Shell Reamer Arbors, MT Shank

5312 7-068 228 Shell Reamer Arbors, Straight Shank

5353 7-052 234 Precision Drill Chuck Arbors, Straight to Jacobs Taper

x Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


BISONModel

Number

PartNumberPrefix


5355 7-052 233 Precision Drill Chuck Arbors, R8 to Jacobs Taper

5357 7-181 180 CAT V-Flange Jacobs Taper Holders

5362 7-052 234 Precision Drill Chuck Arbors, MT to Jacobs Taper

5370 7-052 233 Precision Drill Chuck Arbors, NST to Jacobs Taper

5377 7-175 190 BT Flange Jacobs Taper Holders

5424 7-301 189 ER Integral Shank Tension/Compression Tap Holder

5818 7-610 164 Tailstocks for Horizontal/Vertical Super Spacers

5819 7-610 164 AdjustableTailstocks for Horizontal/Vertical Super Spacers

5859 7-621 163 Rotary Table Horizontal/Vertical Indexing Type

6566 7-223 168 Modular Precision Vises for CNC Machines

6586 7-223 168 Swivel Bases for Modular Precisio Vise

7318 7-191 173 CAT V-Flange Stub Arbor Holders

7320 7-075 225 Shell E/M Arbors, NST/NMTB, 4" Extension

7349 7-170 223 Face Mill Holders with NST Shank

7374 7-192 174 CAT V-Flange Slitting Saw Holder

7382 7-182 180 CAT V-Flange Face Mill Holders

7385 7-186 172 CAT V-Flange Shell End Mill Adapters

7388 7-176 192 BT Flange Shell End Mill Adapters

7411 7-050 224 Shell End Mill Arbors with MT Shank, Style A

7470 7-052 234 Precision Drill Chuck Arbors, MT to Threaded Mount

7550 7-065 224 Shell End Mill Arbors with R8 Shank

7607 7-188 178 CAT V-Flange ER Collet Chucks

7607 AD+B 7-188 179 CAT V-Flange ER Collet Chucks with Thru Flange Coolant Capability

7614 7-180 176 CAT V-Flange TG Collet Chucks

7616 7-171 215 ER Collet Chucks with NST/NMTB Quick Change Shank

7619 7-172 195 BT Flange TG Collet Chucks

7620 7-165 227 End Mill Holders NST/NMTB Quick Change Shank

7624 7-179 191 BT Flange End Mill Holders

7626 7-178 193 BT Flange ER Collet Chucks

7626-S 7-178 193 BT Flange ER Collet Chucks, Extension Type

7636 7-185 170, 171 CAT V-Flange End Mill Holders

7640 7-132 209 TG Collet Chucks with NST/NMTB Quick Change Shank

7650 7-177 194 BT Flange DA Collet Chucks

7652 7-193 175 CAT V-Flange DA Collet Chucks

7655 7-187 182 CAT V-Flange Integral Drill Chuck

7656 7-174 196 BT Flange Integral Drill Chucks

7657 7-048 233 Keyless Drill Chucks w Integral Taper Sh

7665 7-167 208 Collet Chucks with NST/NMTB Quick Change Shank

7694 7-320 183 Milling Chucks, CAT Shank, Ultra Precision

7696 7-321 183 Milling Chucks, BT40 Shank, Ultra Precision

xiToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

INDEX BY BISON MODEL

BISON

BISONModel

Number

PartNumberPrefix


7711 7-188 215 ER Collet Chucks with MT Shank

7720 7-155 226 MT End Mill Holders, Style A, Tanged End

7721 7-150 226 MT End Mill Holders, Style B, DrawBarEnd

7812 7-171 214 ER Collet Chucks with Cylindrical Shank

7814 7-171 214 ER Collet Chucks with R8 Shank

7819 7-161 209 TG Collet Chucks with R8 Shank

7820 7-160 226 End Mill Holders R8 Shank

8204 7-922 43, 63 Fully Machined Threaded Adapters for Threaded Spindles

8205 7-870 62 Rough Adapters for Scroll C hucks with Threaded Spindles

8206 7-871 43, 63, 91 Rough Finished Adapters for Threaded Spindles

8210 7-873 45, 65 Fully Machined Type A1/A2 Adapters

8212 7-873 45, 65, 92 Semi Machined Type A1/A2 Adapters

8215 7-874 27, 116, 117 Backplates TaperA f SET-TRU Chucks

8230 7-921 67 Fully Machined Type C DIN Adapters

8231 7-921 67, 94 Backplates C Taper f BISON Scroll Chucks

8232 7-921 67, 94 Semi Machined Type C DIN Adapters

8235 7-920 30, 117 Backplates C Taper f SET-TRU Chucks

8240 7-878 44, 64 Fully Machined Type D1 Adapters

8242 7-878 44, 64, 93 Semi Machined Type D1 Adapters

8245 7-875 28, 117 Backplates CamlockD f SET-TRU Chucks

8250 7-879 46, 66 Fully Machined Type L Adapters

8255 7-879 31 Backplates "L" Taper for Scroll Chucks

8262 7-870 91 Rough Threaded Adapters for Independent Chucks

8280 7-914 118 MT Adapters for SET-TRU Chucks

8283 7-913 118, 124 MT Fixture Adapter for 3and6-Jaw Quick Clamping Chucks

8285 7-876 29, 117 Backplates Threaded f SET-TRU Chucks

8287 7-910 118, 124 5C Fixture Adapter for 3and6-Jaw Quick Clamping Chucks

8288 7-912 32, 118 Fully Machined 5C Adapters for 3 and 6-Jaw Chucks

8289 7-909 94 5C Semi-Finished Adapters

8293 7-872 78, 166 Base Plates for Front and Back Mount Chucks

8298 7-872 32, 166 Base Plates for Rotary Tables for SET-TRU

8410 7-590 157 Automatic Face Drivers w MT Shank

8411 7-591 158 HD Automatic Face Drivers w MT Shank

8711 7-550 159 Lathe Centers Carbide

8712 7-555 159 Lathe Centers Ball Bearing Steel

8725 7-545 159 Dead Centers with Nut, Alloy Steel

8726 7-546 159 Dead Centers with Nut, Carbide Tipped

8730 7-540 159 Half Dead Centers Carbon Steel

8731 7-541 159 Half Dead Centers Carbide Tipped

8811 7-565 154 Precision Live Centers

xii Toolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com


BISONModel

Number

PartNumberPrefix

Page Number Description

8823 7-567 154 Super Precision Live Centers

8825 7-575 153 Bull Head Live Centers

8832 7-570 156 Live Center w Interchangeable Inserts

8848 7-570 156 Interchangeable Insert for Live Center








9154 7-860 111 3-Jaw(Sol) Rotating Chuck Semi-Steel MT Shank

9155 7-865 111 3-Jaw(2Pc) Rotating Chuck Semi-Steel MT Shank

9170 7-645 98 Face Plate Jaws for Radial T-Slot Tables

9188 7-843 112 3-Jaw Rotating Chuck, Heavy Duty with MT Shank

9419 7-640 167 4-Jaw Self-Centering Machine Fixture

9440 7-610 165 Face Plates for Horizontal/Vertical Super Spacers

9440* 7-610 161, 164, 165 H/V Indexing Super Spacer Acc and Parts

9450 7-630 78, 166 Base Plates for Back Mount Universal Chucks

9452 7-630 32, 78, 166 Chuck Base Plates for Milling Machine Tables, SET-TRU

9784 7-080 172, 192, 224 Shell End Mill Arbors, Spare Parts

9874 7-080 224 Socket Head Arbor Screws

9886 7-189 179 CAT V-Flange Retention Knobs

xiiiToolmex Customer Service: 508-653-8897 • 800-992-4766 • www.toolmex.com

TERMS AND CONDITIONS

BISON

Terms and Conditions – 2009• Prices are subject to change without notice

• F.O.B. Natick Massachusetts Warehouse

• Payment: net 30

• Return Policy:

1. All returns are subject to the discretion of theToolmex Corporation.

2. All returns require prior approval, and anassigned RMA number to the requested return.

3. When calling to request an RMA, please have thefollowing information available:(a) Your purchase order number.(b) Our order number or invoice number.(c) Our part number.(d) Reason for return.

4. Merchandise must be in original packaging and inresalable condition.

5. All returns are subject to inspection prior to creditissued to the customer.

6. The following Return Charges may apply:(a) Toolmex error – No Restocking Charge and NoFreight Charge.(b) Customer error – returned in original carton –in resalable condition.• New order of equal or greater value placed attime of return – No Restocking Charge.• No Replacement order – 10% RestockingCharge.(c) Customer error – not in original carton – 25%Repackaging Charge.(d) Customer error – merchandise not in resalablecondition – no credit due.(e) Large authorized returns not packaged well –25% Repackaging Charge.

Customer error – the customer is responsible for allfreight charges – original order and returns.7. Defective Returns are subject to evaluation prior

to credit being issued. Immediate replacementorders will be billed. Credit will be issued afterthe returned product has been evaluated.

8. No credit will be issued on authorized returns due tothe following conditions:(a) Item has been used – not in resalable condition.(b) Item has been modified by customer.(c) Item has been damaged.(d) Item returned does not match item authorizedto return.

The material will be returned to the customer at theirexpense or disposed of at our end.9. Cancellation of Order: Such requests may be

subjected to a maximum 50% CancellationCharge, depending on our availability to cancel withour suppliers.

10. Unauthorized returns with no paperwork will notbe processed, and no credit due to customer. Suchreturns are subject to be returned to customer withall freight charges the responsibility of the customer.

11. Claims: All Claims must be made within seven daysfrom receipt of merchandise.

12. Short Shipments: Toolmex must be notified within30 days of all short shipments.

13. Damaged or Lost Shipments:(a) UPS – Notify your local UPS office and ToolmexCorporation immediately. Keep damaged tools andpackaging until you are advised to dispose of them.(b) TRUCK - Toolmex Corporation is not liablefor merchandise damaged or lost by truckingcompanies. Please have the driver note the damageor shortage on the freight bill. The customer shouldfile a claim with the trucking company, and reorderthe product with Toolmex.

14. Warranty: Our products have a one year LimitedWarranty. Warranty coverage begins on the daythe product is purchased by the customer. Afterone year from the date of purchase the product isnon-returnable.

0.015625 0.397

0.03125 0.794

0.046875 1.191

0.0625 1.588

0.078125 1.984

0.09375 2.381

0.109375 2.778

0.1250 3.175

0.140625 3.572

0.15625 3.969

0.171875 4.366

0.1875 4.763

0.203125 5.159

0.21875 5.556

0.234375 5.953

0.2500 6.350

0.265625 6.747

0.28125 7.144

0.296875 7.541

0.3125 7.938

0.328125 8.334

0.34375 8.731

0.359375 9.128

0.3750 9.525

0.390625 9.922

0.40625 10.319

0.421875 10.716

0.4375 11.113

0.453125 11.509

0.46875 11.906

0.484375 12.303

0.5000 12.700

164

132

0.515625 13.097

0.53125 13.494

0.546875 13.891

0.5625 14.288

0.578125 14.684

0.59375 15.081

0.609375 15.478

0.6250 15.875

0.640625 16.272

0.65625 16.669

0.671875 17.066

0.6875 17.463

0.703125 17.859

0.71875 18.256

0.734375 18.653

0.7500 19.050

0.765625 19.447

0.78125 19.844

0.796875 20.241

0.8125 20.638

0.828125 21.034

0.84375 21.431

0.859375 21.828

0.8750 22.225

0.890625 22.622

0.90625 23.019

0.921875 23.416

0.9375 23.813

0.953125 24.209

0.96875 24.606

0.984375 25.003

1.000 25.400

116

364

564

1764

1564

1364

1164

964

764

1964

3164

2964

2564

2364

2164

332

1532

1732

1332

1132

932

732

532

12

716

38

516

14

316

18

3364

3564

mm inch.1 .0039.2 .0079.3 .0118.4 .0157.5 .0197.6 .0236.7 .0276.8 .0315.9 .03541 .03942 .07873 .11814 .15755 .19696 .23627 .27568 .31509 .3543

10 .393711 .433112 .472413 .511814 .551215 .590616 .629917 .669318 .708719 .748020 .787421 .826822 .866123 .905524 .944925 .984326 1.023627 1.063028 1.102429 1.141730 1.181131 1.220532 1.259833 1.299234 1.338635 1.378036 1.417337 1.456738 1.496139 1.535440 1.574841 1.614242 1.653543 1.692944 1.732345 1.771746 1.8110

mm inch47 1.850448 1.889849 1.929150 1.968551 2.007952 2.047253 2.086654 2.126055 2.165456 2.204757 2.244158 2.283559 2.322860 2.362261 2.401662 2.440963 2.480364 2.519765 2.559166 2.598467 2.637868 2.677269 2.716570 2.755971 2.795372 2.834673 2.874074 2.913475 2.952876 2.992177 3.031578 3.070979 3.110280 3.149681 3.189082 3.228383 3.267784 3.307185 3.346586 3.385887 3.425288 3.464689 3.503990 3.543391 3.582792 3.622093 3.661494 3.700895 3.740296 3.779597 3.818998 3.858399 3.8976

100 3.9370

3764

3964

5164

4964

4764

4564

4364

4164

6164

5964

5364

5764

5564

6364

1516

1316

78

1

34

1116

58

916

2932

2732

2532

2332

3132

2132

1932

inch mm mminch

2764


Documents

BISON Catalog