This is the most popular NEMA 8 stepper motor with step angle 1.8deg and size 20x20x38mm. It has 4 wires, each phase draws 0.6A rated current with holding torque 0.04Nm/ 5.68oz.in. Please note the mounting frame is 16x16mm, not 15.4x15.4mm.
Electrical Specification
- Part Number: 20HB38-0604S
- Step Angle: 1.8deg
- Bipolar/Unipolar: Bipolar
- Holding Torque: 0.04Nm/5.68oz.in
- Rated Current/phase: 0.6A
- Phase Resistance: 12.5ohms
- Inductance: 5.5mH
- Drving Voltage: 12-24VDC
Physical Specification
- Frame Size: 20x20mm
- Body Length: 38mm
- Shaft Type: Round
- Shaft Diameter: Φ4mm
- Shaft Length: 10mm
- Number of Leads: 4
- Lead Length: 300mm
- Weight: 0.08kg
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| Electrical Specification | |
| Bipolar/Unipolar | Bipolar |
| Step Angle(°) | 1.8 |
| Holding Torque(Nm) | 0.04 |
| Holding Torque(oz.in) | 5.68 |
| Rated Current(A) | 0.6 |
| Phase Resistance(ohm) | 12.5 |
| Phase Inductance(mH) | 5.5 |
| Physical Specification | |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 38 |
| Shaft Type | Round |
| Shaft Diameter(mm) | 4 |
| Shaft Length(mm) | 10 |
| No. of Leads | 4 |
| Lead Length(mm) | 300 |
| Weight(KG) | 0.08 |
