NEMA 23 Worm Gearbox Stepper Motor: This big geared stepper motor has a frame size 57-76mm with rated current 4.2A, integrated with WG series worm gearbox that has a wide range of gear ratio 3 to 60. It is an ideal choice for the applications that require high torque or low speed but high precision motion control and self-locked function.
NEMA 23 Worm Gearbox Stepper Motor Specification
- Part Number: 57AI76-4204S-RV
- Step Angle: 1.8deg w/o gearbox
- Bi/Unipolar: Bipolar
- Holding Torque: 2.0Nm w/o gearbox
- Rated Current/phase: 4.2A
- Insulation Class: B 130°C
- Frame Size: 57x57mm
- Motor Length: 76mm
- Number of Leads: 4
- Lead Length: 500mm
- Gearbox Type: Worm
- Gear Ratio: 5-60:1
- Efficiency: 80%-60%
- Backlash at No-load: 3deg-4deg
- Gearbox Length: 84mm
- Shaft Diameter: Φ11mm
Overall Size

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