This small size 20mm NEMA 8 stepper motor with 38mm body length has a good torque output 0.04Nm/5.68oz.in, which is combined with a 1000CPR incremental optical encocer & a gear ratio of 90:1 planetary gearbox. It is absolutely an ideal solution the applications require closed-loop servo control and low speed/high torque output.
Motor Specification
- Part Number: 20HS38-PG90-E1000
- Step Angle: 1.8deg
- Bi/Unipolar: Bipolar
- Holding Torque: 0.04Nm(5.68oz.in)
- Rated Current/phase: 0.6A
- Driving Voltage: 12-24V
- Frame Size: 20x20mm
- Body Length: 38mm
- Driving Voltage: 12-24V
- Number of Leads: 4
- Lead Length: 300mm
Gearbox Specification
- Gearbox Type: Planetary
- Gear Ratio: 90:1
- Efficiency: 70%
- Backlash at No-load: <=2.0deg
- Gearbox Length: 31.2mm
- Shaft Diameter: Φ6mm
- Shaft Length: 15mm
- D-cut Length: 9mm
Encoder Specification
- Encoder Type: Incremental
- Encoder Resolution: 1000CPR
- Encoder Signal Channels: 3
- No. of Leads: 8
- Lead Length: 300mm
- Supply Voltage: 5.0V
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 0.04 |
| Holding Torque(oz.in) | 5.68 |
| Rated Current(A) | 0.6 |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 38 |
| Driving Voltage(VDC) | 12-24 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 90:1 |
| Efficiency | 70% |
| Backlash at No-load | 2.0deg |
| Gearbox Length(mm) | 31.2 |
| Shaft Diameter(mm) | 6 |
| Shaft Length(mm) | 15 |
| Encoder Specification | |
| Encoder Resolution(CPR) | 1000 |
| Encoder Type | Incremental |
| Supply Voltage(VDC) | 5.0 |
