NEMA 23 Dual Shaft Geared Motor: This big geared dual shaft stepper motor has a frame size 57-56mm with rated current 2.8a, integrated with a precision planetary gearbox & a length of 15mm rear shaft. It is an ideal choice for the applications that require high torque or low speed but high precision motion control.
NEMA 23 Dual Shaft Geared Motor Specification

- Part Number: 57AI56-2804D-HG50
- Step Angle: 1.8deg w/o gearbox
- Bi/Unipolar: Bipolar
- Holding Torque: 1.2Nm w/o gearbox
- Rated Current/phase: 2.8A
- Frame Size: 57x57mm
- Motor Length: 56mm
- Number of Leads: 4
- Lead Length: 500mm
- Gearbox Type: Planetary
- Gear Ratio: 50:1
- Efficiency: 92%
- Backlash at No-load: 25arcmin
- Gearbox Length: 62mm
- Shaft Diameter: Φ14mm
- Shaft Length: 34mm
- Keyway Length: 25mm
- Stepper Drive: DM542
Overall Size

Motor 4 Leads Connection: A+(Black), A-(Green); B+(Red), B-(Blue)
If you need a PDF data sheet, please send the email to: info@frankhumotor.com!
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