This geared NEMA 23 stepper motor has 56mm body and 2.8A rated current, integrated with one planetary gearbox of 55.08:1 gear ratio. It's an ideal solution to the applications that require limited space but low speed and high torque.
Motor Specification
P/N: 57HS56-2804S-PG55
Step Angle: 1.8deg
Bi/Unipolar: Bipolar
Holding Torque: 1.2Nm(170oz.in)
Rated Current/phase: 2.8A
Phase Resistance: 1.3ohms
Inductance: 2.6mH
Frame Size: 57x57mm
Motor Length: 56mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gearbox Type: Planetary
Gear Ratio: 55.08:1
Efficiency: 70%
Backlash at No-load: <=1deg
Rated Torque: 40Nm
Maximun Torque: 60Nm
Gearbox Length: 72mm
Shaft Diameter: Φ12mm
Shaft Length: 30mm
Keyway Length: 20mm
Motor Connection
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 1.2 |
| Holding Torque(oz.in) | 170 |
| Rated Current(A) | 2.8 |
| Frame Size(mm) | 57x57 |
| Body Length(mm) | 56 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 55:1 |
| Efficiency | 70% |
| Gearbox Length(mm) | 72 |
| Shaft Diameter(mm) | 12 |
| Shaft Length(mm) | 30 |
