This small size 20mm NEMA 8 closed-loop hollow shaft stepper servo motor has a body length 53mm including a 1000cpr incremental optilcal encoder, with 0.6A rated current & holding torque 0.04Nm/5.62oz.in. A hollow shaft with outer diameter Φ5mm & inner diameter Φ2.5mm is available and also a double shaft with a front shaft length of 10mm and rear shaft length 7mm is designed.
Electrical Specification
- Part Number: 20HS38EC-KC1
- Step Angle: 1.8deg
- Bi/Unipolar: Bipolar
- Holding Torque: 0.04Nm(5.62oz.in)
- Rated Current/phase: 0.6A
- Phase Resistance: 6.0ohms
- Inductance: 2.7mH
- Driving Voltage: 12-24V
Physical Specification
- Frame Size: 20x20mm
- Motor Length: 38mm
- Outer Shaft Diameter: Φ5.0mm
- Inner Shaft Diameter: Φ2.5mm
- Front Shaft Length: 10mm
- Rear Shaft Length: 7mm
- Number of Leads: 4
- Lead Length: 500mm
- Weight: 0.1KG
Encoder Specification
- Encoder Resolution: 1000CPR
- Encoder Type: Incremental
- No. of Leads: 8
- Lead Length: 300mm
- Supply Voltage: 5.0V
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| Electrical Specification | |
| Bipolar/Unipolar | Bipolar |
| Step Angle(°) | 1.8 |
| Holding Torque(Nm) | 0.04 |
| Holding Torque(oz.in) | 5.62 |
| Rated Current(A) | 6.0 |
| Driving Voltage(VDC) | 12-24 |
| Physical Specification | |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 38 |
| Inner Shaft Diameter(mm) | 2.5 |
| Outer Shaft Diameter(mm) | 5.0 |
| Front Shaft Length(mm) | 10 |
| Rear Shaft Length(mm) | 7 |
| No. of Leads | 4 |
| Lead Length(mm) | 500 |
| Weight(KG) | 0.1 |
| Encoder Specification | |
| Encoder Resolution(CPR) | 1000 |
| Encoder Type | Incremental |
| Supply Voltage(VDC) | 5.0 |
