This geared Nema 11 stepper motor has 45mm body and 0.67A rated current, integrated with one planetary gearbox of 138.9:1 gear ratio. It's an ideal solution to the applications that require limited space but low speed and high torque.
Motor Specification
P/N: 28HS45-0674S-PG139
Step Angle: 1.8deg
Holding Torque: 0.095Nm(13.5oz.in)
Rated Current/phase: 0.67A
Phase Resistance: 6.8ohms
Inductance: 4.9mH
Frame Size: 28x28mm
Motor Length: 45mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gear Ratio: 138.9:1
Efficiency: 70%
Backlash at No-load: <=1deg
Rated Torque: 4.0Nm
Maximun Torque: 6.0Nm
Gearbox Length: 44.6mm
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) | 0.095 |
| Holding Torque(oz.in) | 13.5 |
| Rated Current(A) | 0.67 |
| Frame Size(mm) | 28x28 |
| Body Length(mm) | 45 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 139:1 |
| Efficiency | 70% |
| Backlash at No-load | 1deg |
| Gearbox Length(mm) | 44.6 |
| Shaft Diameter(mm) | 6 |
| Shaft Length(mm) | 18 |
