This geared NEMA 23 stepper motor has 76mm body and 2.8A rated current, integrated with one precision planetary gearbox of gear reduction 4/1. It's an ideal solution to the applications that required limited space but low speed or high torque.
Motor Specification
Part Number: 57HS76-2804S-HG4
Step Angle: 1.8deg
Bi/Unipolar: Bipolar
Holding Torque: 1.9Nm(269oz.in)
Rated Current/phase: 2.8A
Phase Resistance: 1.13ohms
Inductance: 5.4mH
Motor Length: 76mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gearbox Type: Planetary
Gear Ratio: 4:1
Efficiency: 96%
Backlash at No-load: 15arcmin
Rated Torque: 25Nm
Maximum Moment Toruqe: 40Nm
Gearbox Length: 53mm
Shaft Diameter: Φ14mm
Shaft Length: 33.5mm
Keyway length: 25mm
Motor Connection
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 1.9 |
| Holding Torque(oz.in) | 269 |
| Rated Current(A) | 2.8 |
| Frame Size(mm) | 57x57 |
| Body Length(mm) | 76 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 4:1 |
| Efficiency | 96% |
| Backlash at No-load | 15arcmin |
| Gearbox Length(mm) | 53 |
| Shaft Diameter(mm) | 14 |
| Shaft Length(mm) | 33.5 |
