Now Martin Offers Two Styles

The Martin Super — Higher Horsepower

The Martin Universal — Completely Interchangeable

C-28

Flexible JawCouplings

Martin Universal (ML) Martin Super (MS)

• No Lubrication

• Easy Installation

• No Metal to Metal Contact

• Resistant to oil, dirt, sand, moisture, grease

• Easy inspection of load carrying Spider

• Flexibility of angular or parallelmisalignment of shafts by Buna-N Spidermember permits smooth “Power Transmission”

C-29

ML035 3.5 – .006 .02 .07 .10 .20 3⁄8 .07 ML050 31.5 94.5 .05 .15 .60 .9 1.8 5⁄8 .13 ML070 42 126 .07 .21 .84 1.2 2.5 3⁄4 .25 ML075 81 242 .13 .39 1.56 2.3 4.7 7⁄8 .44 ML090 140 420 .22 .66 2.64 4.0 7.9 11⁄8 .69 ML095 189 567 .30 .90 3.6 5.4 10.8 11⁄8 .84 ML099 290 870 .46 1.4 5.5 8.3 16.6 13⁄8 1.19 ML100 416 1248 .66 2.0 7.9 11.9 23.8 13⁄8 1.47 ML110 756 2268 1.2 3.6 14.4 21.6 43.2 15⁄8 3.20 ML150 1197 3591 1.9 5.7 22.8 34.2 68.4 17⁄8 4.50 ML190 1512 4536 2.4 7.2 28.8 43.2 86.4 21⁄8 8.25 ML225 2268 6804 3.6 10.8 43.2 64.8 129.6 25⁄8 12.00

MS050 37.3 112 .06 .18 .71 1.0 2.1 5⁄8 .13 MS070 59.4 178 .09 .28 1.1 1.7 3.4 3⁄4 .25 MS075 157 471 .25 .75 3.0 4.5 8.9 7⁄8 .44 MS090 241 723 .38 1.1 4.6 6.9 13.7 11⁄8 .69 MS095 241 723 .38 1.1 4.6 6.9 13.7 11⁄8 .84 MS099 512 1536 .81 2.4 9.7 14.6 29.2 13⁄8 1.19 MS100 512 1536 .81 2.4 9.7 14.6 29.2 13⁄8 1.47 MS110 1014 3042 1.6 4.8 19.3 28.9 57.8 15⁄8 3.20 MS150 1630 4890 2.6 7.7 31.0 46.5 93.0 17⁄8 4.50 MS190 2450 7350 3.9 11.6 46.6 69.9 139.7 21⁄8 8.25 MS225 2920 8760 4.6 13.9 55.5 83.2 166.5 25⁄8 12.00

Stock JawCouplings

Jaw Coupling Selection ProcedureA. Determine Service Factor by Matching Driven Unit with Prime Mover in Service Factor Guide.B. Multiply Service Factor by Driven Unit or Motor H.P. to Obtain Adjusted H.P.C. Select Flexible Coupling with Horsepower Capacity Equal to or Greater than Adjusted H.P.

Service Factor Guide Prime MoverElectric Motor or Gasoline or Diesel Gasoline or Diesel

Driven Unit (Machinery) Steam Turbine Engine, 6 or More Cyl. Engine, Less Than 6 Cyl.

1.0 1.5 2.0

1.5 2.0 2.5

2.0 2.5 3.0

NOTE: Above H.P. capacities are for Buna-N rubber spider and service factor of one. When Hytrel spider is used multiply capacities by three.

NOTE: Above H.P. capacities are for Buna-N rubber spider and service factor of one. When Hytrel spider is used multiply capacities by three.Misalignment Capacities: Angular up to 1°, Parallel up to .015 inches.Hytrel is a registered trademark of E.I. DuPont & Co.

Light: Uniform or steady load never exceeding horsepower rating, infrequent starting. Agitators,Blowers, Conveyors, Evaporators, Fans, Generators, Centrifugal Pumps, Stokers

Moderate: Heavy inertia, moderate shock, frequent starting; peak loads do not exceed 125 per centaverage horsepower. Uneven load. Beaters, Rotary Pumps and Compressors, Cranes, Elevators,Mine and Propellor Fans, Generators, Pulp Grinders, Hoists, Kilns, Machine Tools, Mixers, GearPumps, Woodworking Machines

Heavy: Heavy shock conditions or frequent reversing. Peak loads do not exceed 150 per cent aver-age horsepower. Uneven load. Reciprocating Pumps and Compressors, Crushers, Freight andPassenger Elevators, Mills (Hammer, Ball, Rolling, Turf, Flour), Vibrating Screens, Winches, WireDrawing Machines, Punches, Shears

Torque Rating Buna-NCatalog Lb. — In. Horsepower Capacity at Various RPM Max. (Each)

Number Buna-N Hytrel® 100 300 1200 1800 3600 Bore Weight

Torque Rating Buna-NCatalog Lb. — In. Horsepower Capacity at Various RPM Max. (Each)

Number Buna-N Hytrel® 100 300 1200 1800 3600 Bore Weight

Martin MS (Super Series) — Torque and Horsepower Ratings

Martin ML (Universal Series) — Torque and Horsepower Ratings

Bore Tolerances:¹⁄₂ – 1 ³⁄₄ + .001 – .0001 ¹³⁄₁₆ – 2 ⁵⁄₈ + .0015 – .0000

C-30

Stock JawCouplings

Bore sizes are standard in 1/16″ increments from minimum to maximum bore range and have keywayand set screw except as shown below:1/8 through 3/8 Bore — No KW — No SS#050 — 7/16 through 5/8 Bore — No KW — 1-SS#070, 075, 090, 095 — 7/16 and 1/2 Bore — No KW — 1-SS#099, 100, 110 — 1/2 Bore — No KW — No SS#150 — 5/8 Bore — No KW — No SS#190, 225 — 3/4 Bore — No KW — No SSNOTE: In each coupling size a min. plain bore is available that can be used to make special boressuch as spline, hex, metric, or other shapes or sizes.

For Standard Keyway sizes see Martin Catalog, page E-138 and E-139.

NOTE: Coupling Sizes are based on the rated torque, max. bore and a have a service factor of 1.0.

* When Using Hytrel or Bronze spider multiply above horsepower ratings by 3.† When using Urethane spider multiply above horsepower ratings by 1.5.

Urethane spiders available. Please consult factory.

★ Bronze spiders available as Made to Order.

Dimensions

ML035 5⁄8 13⁄169⁄32

17⁄641⁄8 3⁄8 .07

ML or MS050 11⁄16 123⁄3215⁄32

5⁄8 1⁄4 5⁄8 .13 ML or MS070 13⁄8 2 1⁄2 3⁄4 1⁄4 3⁄4 .25 ML or MS075 13⁄4 21⁄8 1⁄2 13⁄16

1⁄4 7⁄8 .44 ML or MS090 21⁄8 21⁄8 1⁄2 13⁄16

1⁄4 11⁄8 .69 ML or MS095 21⁄8 21⁄2 1⁄2 1 7⁄16 11⁄8 .84 ML or MS099 217⁄32 27⁄8 3⁄4 11⁄16

1⁄2 13⁄8 1.19 ML or MS100 217⁄32 31⁄2 3⁄4 13⁄8 1⁄2 13⁄8 1.47 ML or MS110 35⁄16 41⁄4 7⁄8 111⁄16

1⁄2 15⁄8 3.20 ML or MS150 33⁄4 41⁄2 1 13⁄4 5⁄8 17⁄8 4.50 ML or MS190 41⁄2 47⁄8 1 115⁄16

3⁄4 21⁄8 8.25 ML or MS225 5 53⁄8 1 23⁄16

3⁄4 25⁄8 12.00

SRL035 SHL035 ML035 .009 .009 SRL050 SHL050 M 050 — MS 050 .013 .013 SRL070 SHL070 ML070 — MS 070 .017 .017 SRL075 SHL075 ML075 — MS 075 .03 .03 SRL090 SHL090 ML or MS090-095 .04 .04 SRL099 SHL099 ML or MS099-100 .07 .07 SRL110 SHL110 ML110 — MS110 .14 .14 SRL150 SHL150 M150 — MS150 .21 .21 SRL190 SHL190 ML190 — MS190 .27 .27 SRL225 SHL225 ML225 — MS225 .41 .41

Distance Length BoreCatalog Hub Overall Betw. Thru WeightNumber Dia. A Length B Flanges C Bore D Min. Max. Lbs.

Spiders — Buna-N (Rubber) and HytrelCatalog Number Accommodates Net Weight Lbs.

Buna-N Hytrel Coupling Buna-N Hytrel

SUL035 ML 035 .009 SUL050 ML050 — MS050 .013 SUL070 ML070 — MS070 .017 SUL075 ML075 — MS075 .03 SUL090 ML or MS 090-095 .04 SU 099 ML or MS 099-100 .07 SUL110 ML110 — MS110 .14 SUL150 ML150 — MS150 .21 SUL190 ML190 — MS190 .27 SUL225 ML225 — MS225 .41

Catalog Number Accommodates Net Weight Lbs.Urethane Bronze★ Coupling Urethane Bronze

Spiders — Urethane† and Bronze★

3⁄8 42 050 1⁄2 1⁄2 1 3⁄4 2 11⁄21⁄2 48 050 1⁄2 1⁄2 1 3⁄4 2 11⁄25⁄8 56,56 H 050 1⁄2 1⁄2 1 3⁄4 2 11⁄23⁄4 66 070 1 3⁄4 11⁄2 1 3 27⁄8 56HZ, 143T, 145T 075 2 1 3 2 71⁄2 3

182, 184 090 3 2 5 3 10 71⁄211⁄8 182T, 184T, 213 095 3 3 5 5 10 10

215 099 71⁄2 5 10 71⁄2 25 1513⁄8 213T, 215T, 245U, 256U 100 71⁄2 71⁄2 10 10 25 2015⁄8 254T, 256T, 248U, 286U 110 15 10 25 20 50 4017⁄8 284T, 286T, 324U, 326U, 326TS 150 30 20 40 30 75 6021⁄8 324T, 326T, 364U, 365U 190 40 25 60 40 125 7523⁄8 364T, 365T 225 50 40 75 60 150 100

Metric Bore Sizes AvailableConsult Factory

Max. Horsepower Rating @ RPMShaft Nema Coupling 1140 1725 3450

Diameter Frame Size MS ML MS ML MS ML

Coupling Selection Chart for 60 Hz Nema Motor FramesBased on Buna-N (Rubber) Spider ★ †

Coupling Half Spider Coupling Half

4

CouplingSafety

WARNING & SAFETYREMINDER

Safety must be considered a basic factor in machinery operation at all times. Most accidentsare the result of carelessness or negligence. All rotating power transmission products are poten-tially dangerous and must be guarded by the contractor, installer, purchaser, owner, and user asrequired by applicable laws, regulations, standards, and good safety practice. Additional specif-ic information must be obtained from other sources including the latest editions of AmericanSociety of Mechanical Engineers; Standard A.N.S.I. B15.1. A copy of this standard may beobtained from the American Society of Mechanical Engineers at 345 East 47th Street, NewYork, NY 10017 (212-705-7722).

It is the responsibility of the contractor, installer, purchaser, owner, and user to install, main-tain, and operate the parts or components manufactured and supplied by Sprocket &Gear, Inc., in such a manner as to comply with the Williams-Steiger Occupational Safety Actand with all state and local laws, ordinances, regulations, and the American National StandardInstitute Safety Code.

Guards, access doors, and covers must be securely fastened before operating any equip-ment.

If parts are to be inspected, cleaned, observed, or general maintenance performed, themotor driving the part or components is to be locked out electrically in such a mannerthat it cannot be started by anyone, however remote from the area. Failure to follow theseinstructions may result in personal injury or property damage.

CAUTION

NOTE: CATALOG DIMENSIONS

Every effort is made to keep all catalog dimensions and styles current in the catalog, howeverfrom time to time, it is necessary because of manufacturing changes to alter stock productsdimensionally.

If any stock product dimension or style shown in this catalog is critical to your applicationplease consult factory for certification.

WARNING

5

Made-to-Order andStock Products

ANGLE FLANGED “U” TROUGH FORM FLANGED “U” TROUGHMILD STEEL AND GALVANIZED MILD STEEL AND GALVANIZED

TROUGH ENDSTUBULAR HOUSING DISCHARGE GATE WITH AND WITHOUT FEET

MILD STEEL AND GALVANIZED FLAT RACK AND PINION MILD STEEL AND GALVANIZED

THRUST ASSEMBLYTYPE E INLETS AND DISCHARGE SPOUTS SHAFT SEAL

WITH DRIVE SHAFT MILD STEEL AND GALVANIZED SPLIT GLAND

SHAFT SEAL SHAFT SEALCOMPRESSION TYPE SHAFT SEAL SHAFT SEAL FLANGED PRODUCT

PACKING GLAND WASTE PACK PLATE DROP-OUT

HELICOID SCREWS HELICOID FLIGHTINGRIGHT HAND AND LEFT HAND RIGHT HAND AND LEFT HANDMILD STEEL AND GALVANIZED MILD STEEL AND GALVANIZED.

SCREWSHOT DIPPED GALVANIZED SPECIALS

SECTIONAL FLIGHTS TAIL COUPLINGMILD STEEL AND DRIVE SHAFTS ELEVATOR BUCKETS

HANGER STYLE 220HANGER STYLE 226 HANGER

MILD STEEL AND MILD STEEL AND STYLE 216GALVANIZED GALVANIZED

HANGER HANGER TROUGH END BEARINGSSTYLE 70 STYLE 19B BALL AND ROLLER

HANGER BEARINGSSTYLE 220/226 HANGER BEARINGS

Martin HARD IRON HARD IRONMartin BRONZE UHMW

NYLATRON WOODWOOD - GATKE GATKE SADDLES AND FEET

SCREW CONVEYOR DRIVE SPEED REDUCER FLANGED COVERWITH ACCESSORIES SHAFT MOUNTED WITH ACCESSORIES

WITH ACCESSORIES.

For more information about

Martinand our other quality products,

join us at our web sitewww.martinsprocket.com

Screw Conveyor Components and Accessories

6

Made-to-Order andStock Products

Stock QD V-Belt Sheaves

“3V” HI-CAP® “5V” HI-CAP® “8V” HI-CAP

Stock Tapered Bushed V-Belt Sheaves

CONVENTIONAL C SECTION “3V” HI-CAP® CONVENTIONAL B SECTIONTAPER BUSHED TAPER BUSHED TAPER BUSHED

Stock Couplings/Covers

RUBBER ELEMENT ROLLER CHAIN JAW COUPLINGMartin-FLEX® STOCK BORE COVERSSTOCK BORE

FINISHED BORE “QD” SC SPACER TPR ELEMENT

Martin’S NEW QUADRA-FLEX® COUPLING

Stock Sintered Metal and Sinteed Steel Products.

HANGER BEARINGS.

All Steel Stock Sprockets

BORED TO SIZE DOUBLE SINGLE SABER TOOTH® QDHARDENED TEETH HARDEND TEETH HARDENED TEETH TRIPLE

Stock Bushings/Hubs

BUSHINGS TYPE QD TAPERED QD IDLERSTEEL WITH KEYSEAT BUSHING BUDSHING

SIZE SF-N

Stock Gears/Steel and CastSpur Gears - Stocked in both 14-1/2º & 20º Pressure Angles

SPUR TYPE B SPUR 3 DP GEAR RACK

BEVEL MITER WORM GEAR WORM

Stock Timing Pulleys

TIMING PULLEY TIMING PULLEY TIMING PULLEYTAPERED BUSHING QD STOCK BORE

STOCK BORE QD MTO

Martin’S NEW HTS (HIGH TORQUE SPROCKETS)

7

USAGeneral OfficesSales and ManufacturingArlington, TX3100 Sprocket Drive 76015-2898P.O. Box 91588 • Arlington, Texas 76015-0088817-258-3000 (FAX 817-258-3333)

Sales and ManufacturingDanielsville, PA3376 Delps Road 18038P.O. Box 267 • Danielsville, PA 18038-0267610-837-1841 (FAX 610-837-7337)

Ft. Worth, TX (Conveyor Division)3600 McCart Street (76110-4692)P.O. Box 1038 • Ft. Worth, TX 76101-1038817-258-3000 (FAX 817-258-3173)

Mansfield, TX811 4th Avenue 76063P.O. Box 193 • Mansfield, TX 76063-0193817-473-1520 (FAX 817-473-0465)

Montpelier, OH350 Airport Road 43543P.O. Box 29 • Montpelier, OH 43543-0029419-485-5515 (FAX 419-485-3565)

Sacramento, CA1199 Vine Street 95814-0426P.O. Box 13856 • Sacramento, CA 95853-3856916-441-7172 (FAX 916-441-4600)

Scottdale, GA3303 Church Street 30079-1395P.O. Box 886 • Scottdale, GA 30079-0886404-292-8744 (FAX 404-292-7771)

Ft. Worth, TX (Tool & Forge Division)3600 McCart Street 76110-4692P.O. Box 1038 • Ft. Worth, TX 76101-1038817-258-3000 (FAX 817-258-3173)

Mini Manufacturing CentersBoston, MA357 Fortune Boulevard Milford, MA 01757508-634-3990 (FAX 508-634-3998)Charlotte, NC3901 South I-85 Service Road 28208Box 19447 • Charlotte, NC 28219-0447704-394-9111 (FAX 704-394-9122)Chicago, IL1505 Birchwood Avenue 60018-3001P.O. Box 1307 • Des Plaines, IL 60017-1307847-298-8844 (FAX 847-298-2967)Denver, CO10800 East 54th Avenue 80239P.O. Box 39208 • Denver CO 80239-0208303-371-8466 (FAX 303-371-7116)Houston, TX9910 Bent Oak Drive 77040P.O. Box 41209 • Houston, TX 77241-1209713-849-4330 (FAX 713-849-4807)Kansas City, MO1520 N. Commerce Avenue 64120P.O. Box 4961 • Kansas City, MO 64120-4961816-231-5575 (FAX 816-231-1959)Los Angeles, CA5920 S. Triangle DiveCommerce, CA 90040-3688323-728-8117 (FAX 323-722-7526)Minneapolis, MN10601 Hampshire Avenue South Bloomington, MN 55438-2395952-829-0623 (FAX 952-944-9385)Portland, OR3030 N.W. IndustrialPortland, OR 97210-0046503-223-7261 (FAX 503-221-0203)Tampa, FL

3201 Queen Palm Drive Tampa FL 33619813-623-1705 (FAX 813-626-8953)Wayne, NJ7 High Point Drive 07470-7432P.O. Box 527 • Wayne, NJ 07474-0527973-633-5700 (FAX 973-633-7196)

Manufacturing OnlyAbilene, TXClarksville, TXSan Angelo, TXParagould, AR (Includes the Plastics Div.)

CANADASales and ManufacturingMartin Sprocket & Gear Canada Inc.896 Meyerside DriveMississauga, Ontario, Canada L5T 1R9905-670-1991 (FAX 905-670-2110)Martin Sprocket & Gear Canada Inc.(Conveyor Division)Box C3, RR #1Ayr. Ontario, Canada NOB IEO519-621-0546 (FAX 519-621-4413)

CHINAHong KongShanghaiFuzhouChengdo

MEXICOSales and ManufacturingMartin Sprocket & Gear de Mexico, S.A. de C.V.Km 52.8 Carretera, Naucalpan-TolucaParque Industrial, Toluca 2000Calle 3, Manzana VII, Lote 11Toluca Edo. de Mexico, C.P. 50200011-52-72-790023 (FAX 011-52-72-790024)

Sold by the World’s Greatest Sales People. Our Distributors.

Martin SPROCKET & GEAR, INC. 3100 SPROCKET DR. • ARLINGTON, TX 76015 • 817-258-3000

Martin Products are made in North America. For more information, contact your nearest Martin Distributor or Service Center.

COPYRIGHT 1999 • Martin SPROCKET & GEAR, INC. • ALL RIGHTS RESERVED

SERVICE CENTERS WORLDWIDE

Extensive stockyards of screws areavailable for quick shipment.

A broad inventory of equipment ensuresprompt worldwide delivery.

Quality material and an experi-enced staff means a rapid turn-around for you, our customer.