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Linear Actuator Stepper Motors

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Linear Actuator Stepper Motors Linear actuator stepper motors Delivering 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. 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. 2 Linear actuator stepper motors Characteristics Linear actuator stepper motors Product overview Linear actuator stepper motors Size 17 Size 23 Size NEMA/ in / mm 17 / 1.7 / 42 23 / 2.3 / 57 Maximum thrust Non-captive shaft General purpose nut lbs / kg 50 / 22 200 / 91 External shaft General purpose nut lbs / kg 25 / 11 60 / 27 Anti-backlash nut lbs / kg 5 / 2 25 / 11 Maximum repeatability Non-captive shaft General purpose nut in / mm 0.005 / 0.127 External shaft General purpose nut in / mm 0.005 / 0.127 Anti-backlash nut in / mm 0.0005 / 0.0127 Phase current amps 1.5 3.0 Number of leads 44 Phase resistance ohms 1.3 0.65 Phase inductance mH 2.1 1.5 Weight (without screw) oz/g 8 / 227 18 / 510 Step angle α ° 1.8 Motor types Lead screw Centering collar Flange size Length Winding Motor connection (without screw) Size 17 Acme-style lead screw with Ø 0.25" / Ø 0.87" / 1.7" / 1.34" / 2-phase full coil for Flying leads end fi nish options Ø 2.0 mm Ø 22.0 mm 42 mm 34.0 mm bi-polar operation Size 23 Acme-style lead screw with Ø 0.375" / Ø 1.50" / 2.3" / 1.77" / 2-phase full coil for Flying leads end fi nish options Ø 9.525 mm Ø 38.0 mm 57 mm 45.0 mm bi-polar operation Linear actuator stepper motors 3 Characteristics (continued) Linear actuator stepper motors Speed-force performance curves Size 17 — 12 VDC Size 17 — 24 VDC Size 17 — 48 VDC Force in lbs / kg Force in lbs / kg Force in lbs / kg 100/45 Screw D 100/45 Screw D 100/45 Screw D Screw C Screw C Screw C Screw B Screw B Screw B Screw A Screw A Screw A 66/30 66/30 66/30 Load limit* Load limit* Load limit* 33/15 33/15 33/15 0 0 0 0 2000/600 4000/1200 6000/1800 0 2000/600 4000/1200 6000/1800 0 2000/600 4000/1200 6000/1800 Speed in full steps per second / rpm Speed in full steps per second / rpm Speed in full steps per second / rpm *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 VDC Force in lbs / kg Force in lbs / kg Force in lbs / kg 200/90 Load limit* Screw D 200/90 Load limit* Screw D 200/90 Load limit* Screw D Screw B Screw B Screw B Screw A Screw A Screw A Screw G Screw G Screw G 132/60 132/60 132/60 61/30 61/30 61/30 0 0 0 0 2000/600 4000/1200 6000/1800 0 2000/600 4000/1200 6000/1800 0 2000/600 4000/1200 6000/1800 Speed in full steps per second / rpm Speed in full steps per second / rpm Speed in full steps per second / rpm *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. NOTE: Above performance data for maximum force/load is based on a static load and will vary with a dynamic load. 4 Linear actuator stepper motors Dimensions (continued) Linear actuator stepper motors Size 17 Size 17 Non-captive shaft, dimensions in inches (mm) NOTE Screw end 1.34 Unsupported loads and side (34.0) options: - Metric 4X M3x0.5 thread loading are not recommended - UNC x0.15 minimum deep for non-captive shaft linear - Smooth actuators. 0.25 - None Ø 0.87 +0/-0.002 (6.35) (Ø 22.0 +0/-0.051) 0.25 (6.4) 12.0 (305.0) 0.08 1.220 ±0.004 (2.0) ( 31.0 ±0.1) 1.68 3.0 to 18.0 ( 42.7) (76.2 to 457.2) Size 17 External shaft, dimensions in inches (mm) 3.0 to 18.0 NOTE (76.2 to 457.2) Cantilevered loads for external 1.34 shaft linear actuators MUST BE (34.0) 0.25 supported. Side loading is not (6.35) 4X M3x0.5 thread recommended. x0.15 minimum deep 0.25 Ø 0.87 +0/-0.002 (6.35) (Ø 22.0 +0/-0.051) Nut Screw end 12.0 options: - Metric (305.0) 0.08 - UNC 1.220 ±0.004 (2.0) - Smooth ( 31.0 ±0.1) - None 1.68 ( 42.7) Nut specifi cations for external shaft linear actuators B B F Anti-backlash Ø D F nut outline Ø BCD General purpose Ø E inches drag A A nut outline A B D E F BCD (mm) torque General purpose nut Anti-backlash nut General 0.50 0.75 1.0 0.14 0.15 0.75 free purpose (12.7) (19.1) (25.4) (3.6) (3.81) (19.1) wheeling For applications not Purpose: backlash free requiring anti-backlash operation for high accu- 0.9 Anti- 0.50 1.0 0.143 0.18 0.75 < 1.0 oz-in and wear compensation. racy and low drag torque. (22.86) backlash (12.7) (25.4) (3.63) (4.57) (19.1) < 0.7 N-cm Flange shape: round Flange shape: triangle max Lead screw specifi cations Screw A Screw B Screw C Screw D Threaded end Metric end: UNC end: M4 x 0.7mm #8-32 UNC-2A thread Travel per revolution 0.25" / 0.125" / 0.063" / 0.031" / thread to within 0.03"/ to within 0.03"/ 0.76 6.35 mm 3.175 mm 1.588 mm 0.794 mm 0.76 mm of shoulder mm of shoulder Travel per full step 0.00125" / 0.00063" / 0.00031" / 0.00016" / 0.0317 mm 0.0158 mm 0.0079 mm 0.004 mm Smooth end Ø 0.1967" ±0.001 Load limit* Ø 5 mm ±0.003 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 None 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. Linear actuator stepper motors 5 Dimensions (continued) Linear actuator stepper motors Size 23 Size 23 Non-captive shaft, dimensions in inches (mm) NOTE 1.77 Screw end (45.0) options: Unsupported loads and side - Metric loading are not recommended - UNC Ø 0.197 for non-captive shaft linear - Smooth (Ø 5.0) - None actuators.
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