This geared NEMA 11 stepper motor has 51mm body and 1.0A rated current, integrated with one precision planetary gearbox of gear ratio 20:1. It's a good solution to the applications that require limited space but low speed and high torque.
Motor Specification
Part Number: 28HS51-1004S-PL20
Step Angle: 1.8deg
Bi/Unipolar: Bipolar
Holding Torque: 0.12Nm(17oz.in)
Rated Current/phase: 1.0A
Frame Size: 28x28mm
Motor Length: 51mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gearbox Type: Planetary
Gear Ratio: 20:1
Efficiency: 94%
Backlash at No-load: <=20arcmin
Gearbox Length: 31.2mm
Shaft Diameter: Φ6mm
Shaft Length: 20mm
D-cut Length: 15mm
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 0.12 |
| Holding Torque(oz.in) | 17.0 |
| Rated Current(A) | 1.0 |
| Frame Size(mm) | 28x28 |
| Body Length(mm) | 51 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 20:1 |
| Efficiency | 94% |
| Backlash at No-load | 20arcmin |
| Gearbox Length(mm) | 31.2 |
| Shaft Diameter(mm) | 6 |
| Shaft Length(mm) | 20 |
