linear actuator stepper motors - schneider electric … · size 17 non-captive shaft, dimensions in...

Linear actuator stepper motorsDelivering long life, high accuracy and unsurpassed repeatability, all in a package that is extremely compact and affordable.

Extremely compact design Linear actuator stepper motors (without integrated electronics) deliver long life, high accuracy and unsurpassed repeatability in a package that is extremely compact and low cost. Linear actuators have 1.8° high torque stepper motors available in two fl ange sizes: NEMA 17 (1.7" / 42 mm sq.) and NEMA 23 (2.3" / 57 mm sq.).

Great versatility To meet the needs of a wide range of linear motion applications, two (2) linear actuator styles are available: • Non-captive shaft has a threaded shaft that extends through the motor and moves axially as the motor rotates• External shaft has a rotating screw, integral to the motor's rotor, that moves the nut axially along the threaded shaft

Precision lead screws Precision rolled lead screws deliver maximum life and quiet operation in combination with the linear actuator's self-lubricating nut. Lead screws are manufactured from premium grade stainless steel that is non-magnetic, corrosion resistant and available with an optional tefl on coating.

2 Linear actuator stepper motors

Presentation Linear actuator stepper motors

Product offer

Linear actuator stepper motors deliver long life, high accuracy and unsur-passed repeatability in a package that is extremely compact and low cost.

These compact linear actuators with 1.8° high torque stepper motors are available in two fl ange sizes: • NEMA 17 (1.7" / 42 mm square fl ange)• NEMA 23 (2.3" / 57 mm square fl ange)

These 2-phase linear actuator stepper motors can be operated at very high resolutions, depending on the stepper motor drive.

Shaft styles

To meet the needs of a wide range of linear motion applications, two (2) linear actuator shaft styles are offered: non-captive shaft and external shaft.

Non-captive shaft

A threaded shaft, extending through the motor, moves axially with the rotation of the nut integral to the motor's rotor.

External shaft

A threaded shaft, integral to the motor's rotor, rotates to move a shaft-mounted nut axially. Two nut styles are offered: general purpose and anti-backlash.

Lead screw characteristics

In combination with the self-lubricating nut of IMS linear actuators, precision rolled lead screws deliver maximum life and quiet operation. Lead screws are manufactured from premium grade stainless steel that is corrosion resistant, non-magnetic and available with an optional tefl on coating.

Lead screw Diameter Length Pitch options End options

Size 17 0.25" / 6.35 mm 3 to 18" / 76 to 457 mm 4 4

Size 23 0.375" / 9.525 mm 3 to 24" / 76 to 610 mm 4 4

Drive system

Combine linear actuator stepper motors with MForce microstepping drives for very compact, high performance linear motion systems. MForce products are available in two power ranges, 3.0 A and 5.0 A, and in two versions: Motion Control (units with integrated programmable motion control-ler or optional CANopen interface) and Microstepping (drive-only units pro-grammed via pulse/direction interface). Optional QuickStart Kits are available to expedite initial functional setup/test.

Linear actuator stepper motors 3

Product overviewLinear actuator stepper motors Size 17 Size 23

Size NEMA/ in / mm 17 / 1.7 / 42 23 / 2.3 / 57Maximum thrustNon-captive shaft General purpose nut lbs / kg 50 / 22 200 / 91External shaft General purpose nut lbs / kg 25 / 11 60 / 27

Anti-backlash nut lbs / kg 5 / 2 25 / 11Maximum repeatabilityNon-captive shaft General purpose nut in / mm 0.005 / 0.127External shaft General purpose nut in / mm 0.005 / 0.127

Anti-backlash nut in / mm 0.0005 / 0.0127Phase current amps 1.5 3.0Number of leads 4 4Phase resistance ohms 1.3 0.65Phase inductance mH 2.1 1.5Weight (without screw) oz/g 8 / 227 18 / 510Step angle α ° 1.8

Motor types

Lead screw Centering collar Flange size Length (without screw)

Winding Motor connection

Size 17Acme-style lead screw with end fi nish options

Ø 0.25" /Ø 2.0 mm

Ø 0.87" /Ø 22.0 mm

1.7" /42 mm

1.34" /34.0 mm

2-phase full coil for bi-polar operation

Flying leads

Size 23Acme-style lead screw with end fi nish options

Ø 0.375" /Ø 9.525 mm

Ø 1.50" /Ø 38.0 mm

2.3" /57 mm

1.77" /45.0 mm

2-phase full coil for bi-polar operation

Flying leads

Characteristics Linear actuator stepper motors


Speed-force performance curvesSize 17 — 12 VDC Size 17 — 24 VDC Size 17 — 48 VDCForce in lbs / kg

Speed in full steps per second / rpm

Force in lbs / kg


Force in lbs / kg


*Load limit for non-captive shaft linear actuators is 50 lbs / 22 kg. Load limit for external shaft linear actuators is determined by selected nut. See page 5.

Size 23 — 24 VDC Size 23 — 48 VDC Size 23 — 75 VDCForce in lbs / kg


Force in lbs / kg


Force in lbs / kg


*Load limit for non-captive shaft linear actuators is 200 lbs / 91 kg. Load limit for external shaft linear actuators is determined by selected nut. See page 6.

Linear actuator stepper motorsCharacteristics (continued)

0

66/30

100/45

33/15

0 2000/600 4000/1200 6000/1800

Load limit*

Screw DScrew CScrew BScrew A

0

66/30

100/45

33/15

0 2000/600 4000/1200 6000/1800


Load limit*

0

66/30

100/45

33/15

0 2000/600 4000/1200 6000/1800


Load limit*

0

132/60

200/90

61/30

0 2000/600 4000/1200 6000/1800

Load limit* Screw DScrew BScrew AScrew G

0

132/60

200/90

61/30

0 2000/600 4000/1200 6000/1800


0

132/60

200/90

61/30

0 2000/600 4000/1200 6000/1800


NOTE: Above performance data for maximum force/load is based on a static load and will vary with a dynamic load.

Linear actuator stepper motors 5

Size 17 Non-captive shaft, dimensions in inches (mm)

Ø 0.87 +0/-0.002(Ø 22.0 +0/-0.051)

1.68( 42.7)

1.220 ±0.004( 31.0 ±0.1)

4X M3x0.5 threadx0.15 minimum deep

0.25(6.35)

0.25(6.4)

1.34(34.0)

0.08(2.0)

3.0 to 18.0(76.2 to 457.2)

Screw endoptions: - Metric - UNC - Smooth - None

12.0(305.0)

Size 17 External shaft, dimensions in inches (mm)

1.68( 42.7)

1.220 ±0.004( 31.0 ±0.1)

4X M3x0.5 threadx0.15 minimum deep

1.34(34.0)

0.08(2.0)

12.0(305.0)

0.25(6.35)

0.25(6.35)


Nut

3.0 to 18.0(76.2 to 457.2)

Ø 0.87 +0/-0.002(Ø 22.0 +0/-0.051)

Nut specifi cations for external shaft linear actuators

Lead screw specifi cations

Screw A Screw B Screw C Screw DTravel per revolution 0.25" /

6.35 mm0.125" / 3.175 mm

0.063" / 1.588 mm

0.031" / 0.794 mm

Travel per full step 0.00125" / 0.0317 mm

0.00063" / 0.0158 mm

0.00031" / 0.0079 mm

0.00016" / 0.004 mm

Load limit*

Non-captive shaft 50 lbs / 22 kg 10 lbs / 4.5 kg

External shaft General purpose nut 25 lbs / 11 kg 10 lbs / 4.5 kg

Anti-backlash nut 5 lbs / 2 kg 5 lbs / 2 kg

*Performance data for maximum force/load is based on a static load and will vary with a dynamic load.

Threaded end

Smooth end

None

Linear actuator stepper motorsSize 17

Dimensions (continued)

Metric end: M4 x 0.7mm

thread to within 0.03"/ 0.76 mm of shoulder

UNC end: #8-32 UNC-2A thread to within 0.03"/ 0.76

mm of shoulder

Ø 0.1967" ±0.001Ø 5 mm ±0.003

—

Ø D

Ø E

Ø BCD

Anti-backlashnut outline

Generalpurposenut outlineA

B

F

General purpose nutFor applications not requiring anti-backlash and wear compensation.Flange shape: round

Anti-backlash nutPurpose: backlash free operation for high accu-racy and low drag torque.Flange shape: triangle

A

B

F

inches (mm) A B D E F BCD drag

torque

General purpose

0.50 (12.7)

0.75(19.1)

1.0 (25.4)

0.14 (3.6)

0.15 (3.81)

0.75(19.1)

freewheeling

Anti-backlash

0.50 (12.7)

0.9 (22.86)

max

1.0 (25.4)

0.143 (3.63)

0.18 (4.57)

0.75(19.1)

< 1.0 oz-in < 0.7 N-cm

NOTEUnsupported loads and side loading are not recommended for non-captive shaft linear actuators.

NOTECantilevered loads for external shaft linear actuators MUST BE supported. Side loading is not recommended.


Size 23 Non-captive shaft, dimensions in inches (mm)

0.375(9.525)

0.50(12.7)

3.0 to 24.0(76.2 to 609.6)


1.77(45.0)

0.19(4.9)

Ø 1.50 ±0.002(Ø 38.0 ±0.1)

2.22( 56.4)

Ø 0.197(Ø 5.0)

1.856 ±0.008 ( 47.1 ±0.2)

0.06 ±0.00(1.5 ±0.1)

12.0(305.0)

Size 23 External shaft, dimensions in inches (mm)


1.77(45.0)

0.19(4.9)

Ø 1.50 ±0.002(Ø 38.0 ±0.1)

2.22( 56.4)

Ø 0.197(Ø 5.0)

1.856 ±0.008 ( 47.1 ±0.2)

0.06 ±0.00(1.5 ±0.1)

12.0(305.0)

0.375(9.525)

0.50(12.7)

Nut

3.0 to 24.0(76.2 to 609.6)

Nut specifi cations for external shaft linear actuators

Lead screw specifi cations

Threaded end

Smooth end

None

Metric end: M6 x 1.0mm


UNC end: 1/4-20 UNC-2A


Ø 0.2362" ±0.001Ø 6mm ±0.003

—

A

BF

A

BF

Linear actuator stepper motorsSize 23

Dimensions (continued)

General purpose nutFor applications not requiring anti-backlash and wear compensation.Flange shape: round

Anti-backlash nutPurpose: backlash free operation for high accu-racy and low drag torque.Flange shape: triangle

inches (mm) A B D E F BCD drag

torque

General purpose

0.71 (18.0)

1.50(38.1)

1.5 (38.1)

0.20 (5.08)

0.20 (5.08)

1.125(28.6)

freewheeling

Anti-backlash

0.82 (20.8)

1.875 (47.63)

max

1.5 (38.1)

0.20 (5.08)

0.20 (5.08)

1.125(28.6) 1–3

Nut outline Ø D

Ø E

Ø BCD

NOTEUnsupported loads and side loading are not recommended for non-captive shaft linear actuators.

NOTECantilevered loads for external shaft linear actuators MUST BE supported. Side loading is not recommended.

Screw G Screw A Screw B Screw DTravel per revolution 0.375" /

9.525 mm0.20" / 5.08 mm

0.167" / 4.233 mm

0.0833" / 2.116 mm

Travel per full step 0.001875" / 0.0476 mm

0.001" / 0.0254 mm

0.000835" / 0.0212 mm

0.0004165" / 0.0106 mm

Load limit*

Non-captive shaft 200 lbs / 91 kg

External shaft General purpose nut 60 lbs / 27 kg

Anti-backlash nut 25 lbs / 11 kg

*Performance data for maximum force/load is based on a static load and will vary with a dynamic load.

Linear actuator stepper motors 7 © Schneider Electric Motion USA All Rights Reserved. REV052410Product Disclaimer and most recent product information online.

Schneider Electric Motion USA370 North Main Street, P.O. Box 457Marlborough, CT 06447 - U.S.A.Tel. +00 (1) 860 295-6102 - Fax +00 (1) 860 295-6107e-mail: [email protected]

linear actuator stepper motors - schneider electric … · size 17 non-captive shaft, dimensions in...

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