This small size 20mm NEMA 8 hollow shaft stepper motor has a body length 38mm with 0.6A rated current & holding torque 0.04Nm/5.68oz.in. A hollow shaft with outer diameter Φ5mm & inner diameter Φ2.5mm is available and also a double shaft with a short front shaft length of 12mm and rear shaft length 10mm is designed.
Electrical Specification
- Part Number: 20HS38-12NK1
- Step Angle: 1.8deg
- Bi/Unipolar: Bipolar
- Holding Torque: 0.04Nm(5.68oz.in)
- Rated Current/phase: 0.6A
- Phase Resistance: 9.0ohms
- Inductance: 3.0mH
- Driving Voltage: 12-24VDC
Physical Specification
- Frame Size: 20x20mm
- Body Length: 38mm
- Outer Shaft Diameter: Φ5.0mm
- Inner Shaft Diameter: Φ2.5mm
- Front Shaft Length: 12mm
- Rear Shaft Length: 10mm
- Number of Leads: 4
- Lead Length: 400mm
- Weight: 80g
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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) | 9.0 |
| Phase Inductance(mH) | 3.0 |
| Driving Voltage(VDC) | 12-24 |
| Physical Specification | |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 38 |
| Single Shaft/Dual Shaft | Dual Shaft |
| Inner Shaft Diameter(mm) | 2.5 |
| Outer Shaft Diameter(mm) | 5.0 |
| Front Shaft Length(mm) | 12 |
| Rear Shaft Length(mm) | 10 |
| No. of Leads | 4 |
| Lead Length(mm) | 400 |
| Weight(KG) | 0.08 |
