This big size 57mm NEMA 23 closed-loop hollow shaft stepper servo motor has a body length 86mm including a 1000cpr incremental optilcal encoder, with 4.2A rated current & holding torque 2Nm/284oz.in. A hollow shaft with outer diameter Φ16mm & inner diameter Φ12mm is available and also a double shaft with a front shaft length of 30mm and rear shaft length 6mm is designed.
Electrical Specification
- Part Number: 57HS76EC1-B-NK30
- Step Angle: 1.8deg
- Bi/Unipolar: Bipolar
- Holding Torque: 2.0Nm(284oz.in)
- Rated Current/phase: 4.2A
- Phase Resistance: 0.6ohms
- Inductance: 1.8mH
- Driving Voltage: 24-72V
Physical Specification
- Frame Size: 57x57mm
- Motor Length: 76mm
- Outer Shaft Diameter: Φ16mm
- Inner Shaft Diameter: Φ12mm
- Front Shaft Length: 30mm
- Rear Shaft Length: 6mm
- Number of Leads: 4
- Lead Length: 3000mm
- Weight: 1.4KG
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) | 2 |
| Holding Torque(oz.in) | 284 |
| Rated Current(A) | 4.2 |
| Driving Voltage(VDC) | 24-72 |
| Physical Specification | |
| Frame Size(mm) | 57x57 |
| Body Length(mm) | 76 |
| Inner Shaft Diameter(mm) | 12 |
| Outer Shaft Diameter(mm) | 16 |
| Front Shaft Length(mm) | 30 |
| Rear Shaft Length(mm) | 6 |
| No. of Leads | 4 |
| Lead Length(mm) | 3000 |
| Weight(KG) | 1.35 |
| Encoder Specification | |
| Encoder Resolution(CPR) | 1000 |
| Encoder Type | Incremental |
| Supply Voltage(VDC) | 5.0 |
