This NEMA 11 stepper motor with rear shaft has 51mm body and 0.67A rated current, integrated with one planetary gearbox of 13.76:1 gear ratio. It's an ideal solution to the applications that require limited space but low speed and high torque.
Motor Specification
P/N: 28HS51-0674D-PG14
Step Angle: 1.8deg
Holding Torque: 0.12Nm(17oz.in)
Rated Current/phase: 0.67A
Phase Resistance: 9.2ohms
Inductance: 5.7mH
Frame Size: 28x28mm
Motor Length: 51mm
Rear Shaft Diameter: Φ5mm
Rear Shaft Length: 13.5mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gear Ratio: 13.76:1
Efficiency: 80%
Backlash at No-load: <=1deg
Rated Torque: 3.0Nm
Maximun Torque: 5.0Nm
Gearbox Length: 36.8mm
Shaft Diameter: Φ6mm
Shaft Length: 18mm
D-cut Length: 12mm
Motor Connection
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 0.12 |
| Holding Torque(oz.in) | 17 |
| Rated Current(A) | 0.67 |
| Frame Size(mm) | 28x28 |
| Body Length(mm) | 51 |
| Rear Shaft Diameter(mm) | 5 |
| Rear Shaft Length(mm) | 13.5 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 14:1 |
| Efficiency | 80% |
| Backlash at No-load | 1deg |
| Gearbox Length(mm) | 36.8 |
| Shaft Diameter(mm) | 6 |
| Shaft Length(mm) | 18 |
