LMSERIESLINEAR MODULE

2

THE LM RODLESS LINEAR ACTUATOR

DESIGN FEATURES

RACO’s LM Linear Modules are lightweight positioning elements, which can be easily configured into a wide varietyof multiple axis motion systems. Possible configurationsinclude single axis driven / idler, parallel linked single axis,

XY and XYZ systems. The LM is engineered for carriagespeeds to 200 inches per second, single module loadcapacity of 800 lbs. and stroke range of approximately 20 feet with a single extrusion. Further detail of the LMdesign and benefits to the motion system builder are listed below.

Features Benefits

■ T-Slots & fasteners ■ Secure mounting; Multi axis configurations

■ Selection of drive stations ■ Customize to the application

■ Mechanical or inductive switches ■ Home reference & over-travel protection

■ High strength steel reinforced belt ■ Axial forces capacity to 400 lbs

■ Cogged belt & pulleys machined to be ■ Repeatability of 0.003"to be 0° backlash

■ Precision extruded 6063 alloy ■ Travel to 20 ft without splices

■ Machined HDP (Delrin) treads & ■ Normal loads to 800 lbs.ball bearing wheels Side loads to 400 lbs.

■ External adjustment of belt & wheels ■ Easy maintenance

■ Belt seal & sealed pulley bearings ■ Service in contaminated environments

3

X-Y SYSTEM

DOUBLE DRIVENLMS

VARIOUS USER CONFIGURATIONS

X-Y-Z SYSTEM

DOUBLE DRIVEN LM

SINGLE LMWITH IDLER

DRIVE STATIONS & OPTIONALSHAFT / BEARINGS

G

E holes on B.C. Bolt Circle

F

AC

Bø

KEY

A

4

DDSSUPPORT BEARING FORMOTOR/GEARBOX

SISSINGLE INPUT SHAFT

DISDOUBLE INPUTSHAFTBø

GBSSUPPORT BEARING WITH OUTBOARD DRIVE SHAFT

D

B

PL-- GEARBOX / REDUCER DRIVE INPUT STATIONINPUT D E B.C. F G

LM3 PL7 2.36 M5x0.8 2.953 1.85 3.937PL9 3.15 M6x1.0 3.937 1.85 3.937

LM4 PL9 3.15 M6x1.0 3.937 2.36 5.67PL15 4.331 M8x1.25 5.118 2.36 5.67

LM DRIVE STATION OPTIONS SHAFTS & BEARINGSA B Bø C KEY

LM3 4.33 1.85 0.79 2.68 0.24 x 0.24 x 0.86LM4 4.53 2.36 0.79 2.91 0.24 x 0.24 x 0.86

DRIVE / SHAFT ORIENTATION

DIMENSIONS

A+ S

TR

OK

E

Z2

Z1

5

LM UNDRIVEN IDLER UNIT

SIS PL/DDS/GBS MOVING BEAM Z LEFT RIGHT LEFT RIGHT LEFT RIGHT

LM DRIVEN UNIT DIMENSIONS ARE LOCATED ON PAGE 6

LM MOVING BEAM Z AXIS UNIT

A A ACarriage N L X# of Rollers 12 18 24LM3 16.32 19.47 23.80LM4 18.33 21.96 26.99

Carriage Rollers A Z1 Z2LM3 L 18 24.42 8.47 12.99LM3 X 24 28.74 8.47 17.32LM4 L 18 30.67 10.7 14.65LM4 X 24 35.71 10.7 19.69

A + STROKE

6

A + STROKE

STROKE LIMIT

TensionAdjustingBolts

Load AttachmentPlate

D3

Optional gearboxes available,

consult RACO

For optional carriage lengths, see carriage chart

D2

D1

D4

CD5B1

TB2

C4

C5

C4

STROKE LIMIT• •

E1E5

E2

C1

E3E1

C2C3ES3

ES1

ES4ES2E4

E6

LM CARRIAGE DIMENSIONS (Inches)ROLLERS # A C C1 C2 C3 C4 C5LM3-N 12 22.24 9.84 2.56 0.74 0.55 2.76 2.17LM3-L 18 25.39 12.99 2.56 0.74 0.55 2.76 3.74LM3-X 24 29.72 17.32 2.56 0.74 0.55 2.76 5.91LM4-N 12 26.69 11.02 3.50 0.89 0.63 3.54 1.97LM4-L 18 30.31 14.65 3.50 0.89 0.63 3.78 3.54LM4-X 24 35.35 19.68 3.50 0.89 0.63 3.94 5.91

LM EXTRUSION DIMENSIONS (Inches)E1 E2 E3 E4 E5 E6 ES1 ES2 ES3 ES4

LM3 2.95 0.79 1.97 0.98 1.77 0.89 0.16 0.41 0.10 0.26LM4 3.94 1.14 2.36 1.18 2.36 1.18 0.26 0.53 0.16 0.33

LM BASIC MODULE DIMENSIONS (Inches)B1 B2 D1 D2 D3 D4 D5 T

LM3 6.69 5.71 3.94 1.97 1.85 3.07 5.24 1.18LM4 8.90 6.77 5.67 2.83 2.36 4.65 7.48 1.38

LM3/LM4 ACCESSORIEST-BOLTS AND NUTS

TH

L

CC

SOCKETHEADCAPSCREW*

L H

W

W1

A

A

Dø

CT

B

B

D1

7

Lin

ea

r V

el.

(in

/ s

ec

)

LM3••••••• LM4

••••• ••

•

CLAMP BARS

LM WITH LINK SHAFTLINK SHAFT ASSEMBLY

T-BOLT DIMENSIONSA H T L Dø

LM3 0.39 0.16 0.47 0.98 M6x1.0LM4 0.51 0.24 0.59 1.26 M8x1.25

T-NUT DIMENSIONSB C T D1

0.51 0.24 0.35 M6x1.0

CLAMP BAR DIMENSIONSH L W CC W1 SHCS*

LM3 - side slots (top / bottom) 0.49 (0.57) 1.97 0.59 0.98 0.30 M6x1.0LM4 - all slots 0.79 2.76 0.79 1.38 0.39 M8x1.25

LM3/LM4 TECHNICAL DATA

8

LM3 LM4

Repeatability +/-0.003"Temperature Range -5 to +185 FCoefficient of Friction 0.009 – 0.02Efficiency 95%

MaterialsStructure 6063 Aluminum AlloyBelt Polyurethane / steel reinforcedWheel Treads Delrin 150 SALink shaft Solid or Tubular

WeightsLM Modules - Complete

Un-driven Idler N type 6.82 lb +0.317 lb / in 12.0 lb +0.6 lb / inL type 9.42 lb +0.317 lb / in 16.88 lb +0.6 lb / inX type 13.2 lb +0.317 lb / in 23.5 lb +0.6 lb / in

Single LM DriveN type 7.41 lb +0.325 lb / in 14.1 lb + 0.617 lb / inL type 9.01 lb +0.325 lb / in 16.8 lb + 0.617 lb / inX type 11.41 lb +0.325 lb / in 25.4 lb + 0.617 lb / in

Moving Beam Z Drive 17.40 lb +0.325 lb / in 28.7 lb + 0.617 lb / inSub-components

Link Shaft Assembly 4.32 lb + 0.125 lb / inchBelt 0.09 lb / ft 0.128 lb / ftProfile 0.317 lb / in 0.6 lb / in

Profile TolerancesFlatness 0.012" 0.016"Straightness 0.0125" per ft Twist 0.25 degree per ft (3 degree max.)

Max. stroke – single extrusion(1" allowance for switches)

N 238" 236"L 235" 233"X 230" 228"Z Beam 36" 48"

Drive Pitch 7.48 in / rev 10.232 in / revPulley Diameter 2.38" 3.258"Traction Force Limits 562 lb 843 lbBelt Tension (torque setting)

0" to 120" stroke 90 lb ( 6 lb-in ) 110 lb ( 9 lb-in )120" to 240" stroke 180 lb ( 12 lb-in ) 210 lb ( 15 lb-in )240" to 360" stroke 225 lb ( 16 lb-in ) 260 lb ( 20 lb-in )

Reflected InertiaPulley 0.34 lb-in2 1.2 lb-in2

Carriage N 5 lb-in2 14.3 lb-in2

L 7.3 lb-in2 21.2 lb-in2

X 10.8 lb-in2 30.9 lb-in2

Link Shaft Assembly 3.44 + (0.125) * length lb-in2

LM3/LM4 CAPACITIES

9

Th

rus

t (l

bs

)

LM3••••••• LM4◆◆◆◆◆◆

◆ ◆ ◆◆ ◆ ◆◆◆ ◆◆ ◆ ◆• •••••• •••••• ••••••••• ••• •••••••••••••

To

rqu

e (

lb-i

n)

◆ ◆ ◆◆ ◆ ◆◆◆ ◆◆ ◆ ◆

•• •••••• •••• ••••••••• ••• ••••••••••••••••

Mz

My

FzFy

Mx

Fx

AXIAL FORCE (Fx) CAPACITY

INPUT TORQUE CAPACITY

•

Rated Load Capacities LM3

Carriage Fz lb Fy lb Mx in-lb My in-lb Mz in-lbN 240 160 2750 2760 2050L 480 240 3300 3240 2400X 640 320 3500 4550 3375

LM4Carriage Fz lb Fy lb Mx in-lb My in-lb Mz in-lb

N 300 210 3540 3575 2650L 600 300 4240 4170 3090X 800 400 4500 5845 4330

LM3 / LM4 DEFLECTION UNDER LOAD

10

•

••••

•••

◆

.

•

•••••

• •••

•

◆ ◆◆

◆◆

••

•••••

•••

•

◆ ◆

➡

Fz Fz

➡

Free Span

Deflection

•••••• •• •••• • ••••••

••

•

•

•••••••• ◆

••

•••••••

••

•••

◆◆

◆◆◆

NORMAL LOAD DEFLECTION - LM3

LM - SIDE VIEW LM - END VIEW

SIDE LOAD DEFLECTION - LM3

NORMAL LOAD DEFLECTION - LM4 SIDE LOAD DEFLECTION - LM4

LM ORDERING

LM3 D - N - 120 - PL9 - GBS - L

L - Drive Left R - Drive Right

GBS - Gearbox and ShaftSIS - Single Input ShaftDIS - Double Input ShaftDDS -Direct Drive SupportI - No Shaft Option

PL7 or PL9 (for LM3)PL9, PL15 (for LM4)I - No Gearbox Z - Special

Stroke Length “inches”

N - Standard Carriage, Z- SpecialS - Short, L - Long, X - Extra Long

I - Idler, D - Driven, Z - Driven Moving Beam

Unit Size LM3 or LM4

11

LM3 ACCESSORIES Part Number DetailClamp Bar - Side Slots 075-471-01 M6x1.0Clamp Bar -Top/Bottom. 075-471-00 M6x1.0T Bolt 075-465-00 M6x1.0Square Nut 075-141-01 M4 for Limit Switch Mounting only)Switch Target / Trip Plate 100-476-00 for Prox & Mech LimitsProx - NPN-NC Assembly LM3 PROX NNCProx - NPN-NO Assembly LM3 PROX NNOProx - PNP-NO Assembly LM3 PROX PNOProx - PNP-NC Assembly LM3 PROX PNCMech Home Limit Assembly LM3 MECH HOMMech Limit - EOT Assembly LM3 MECH LIMDual LM Link Shaft 075-xxx-yy yy=center span ( in. )

LM4 ACCESSORIES Part Number DetailClamp Bar 100-471-00 M8x1.25T Bolt 100-141-00 M8x1.25T Nut 100-465-00 M6x1.0Switch Target/Trip Plate 100-476-00 for Prox & Mech LimitsProx - NPN-NC Assembly LM4 PROX NNCProx - NPN-NO Assembly LM4 PROX NNOProx - PNP-NO Assembly LM4 PROX PNOProx - PNP-NC Assembly LM4 PROX PNCMech Home Limit Assembly LM4 MECH HOMMech Limit - EOT Assembly LM4 MECH LIMDual LM Link Shaft 100-xxx-yy yy=center span ( in. )

} Orientation - Looking from the Carriage to the Drive Station - page 5

} Drive Options - page 4

LIMIT / HOME SWITCH CHARACTERISTICS RATING REPEATABILITY LIFE

INDUCTIVE PROX 10-30 VDC 200 ma < 0.08 mm ----

MECH 69 VA DC 0.05 mm 10x106 Cycles 720 VA AC

RACO International, Inc.3350 Industrial Blvd.Bethel Park, PA 15102(888) BUY-RACO (888) 289-7226Ph: (412) 835-5744Fx: (412) 835-0338email: raco@racointernational.comHome page: www.racointernational.com

© 2001 RACO International, Inc.

RACO ELECTRIC ACTUATORS FOR TODAY’S INDUSTRYOther Products Offered By RACO

RACO Compact■ Smaller installed envelope size

■ Thrust capacities to 9000 lbs.

■ Standard stroke lengths to 23.6 inches

■ Ball or acme power screw thread configuration

■ Multiple leads available in every size to optimize motor / reduction / output speed capability

■ Complete line of standard controls and options

■ ISO 9001 Manufacturing

■ Typical delivery 2-3 weeks

RACO RM■ Available in seven sizes to 10,000 lb-ft of torque

■ Fractional or multiple turn rotations

■ Output speeds thru 90 degrees in 1 to 30 seconds

■ Hollow or solid shaft output

■ Adjustable rotation limit switches

■ Analog or digital position feedback

■ Electronic torque control

■ Modular design allows custom solutions

RACO MA■ Largest installed base in the world

■ Thrust Capacities to 200,000 lbs.

■ Standard stroke lengths to 80 inches

■ Ball or acme power screw thread configuration

■ Multiple leads available in every size to optimizemotor / gearhead / output speed capability

■ Complete line of standard controls and options

■ ISO 9001 Manufacturing

■ Typical delivery 2-3 weeks

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