This NEMA 8 geared reduction closed-loop stepper servo motor has a 38mm body length and is integrated with one planetary gearbox of 4.75:1 gear ratio & 1000cpr incremental opitcal encoder, which generates a strong holding torque otuput upto 0.17Nm/24.1oz-in & a very low speed 0-190rpm. It's an ideal solution to the applications that require limited space but low speed and high torque.
Motor Specification
- Manufacturer Part Number: 20HS38EC-AG5
- Step Angle: 1.8deg without gearbox
- Bipolar/Unipolar: Bipolar
- Holding Torque: 0.04Nm(5.7oz.in)without gearbox
- Rated Current/phase: 0.6A
- Frame Size: 20x20mm
- Motor Length: 38mm
- Rear Shaft Diameter: Φ4mm
- Rear Shaft Length: 10mm
- Number of Leads: 4
- Lead Length: 280mm
Gearbox Specification
- Gearbox Type: Planetary
- Gear Ratio: 4.75:1
- Efficiency: 90%
- Backlash at No-load: <=1.0deg
- Rated Torque: 0.5Nm/71oz-in
- Maximun Torque: 1.0Nm/142oz-in
- Gearbox Length: 21.2mm
- Shaft Diameter: Φ6mm
- Shaft Length: 15mm
- D-cut Length: 9mm
Encoder Specification
- Encoder Resolution: 1000CPR
- Encoder Signal Channels: 3
- Encoder Signal Output: Differential
- Encoder Type: Incremental
- Encoder Length: 13mm
- No. of Leads: 8
- Lead Length: 300mm
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 0.04 |
| Holding Torque(oz.in) | 5.6 |
| Rated Current(A) | 0.6 |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 38 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 5:1 |
| Efficiency | 90% |
| Backlash at No-load | 1.0deg |
| Gearbox Length(mm) | 21.2 |
| Shaft Diameter(mm) | 6 |
| Shaft Length(mm) | 15 |
| Encoder Specification | |
| Encoder Resolution(CPR) | 1000 |
| Encoder Type | Incremental Optical |
| Encoder Length(mm) | 13 |
