B57 Series
Major dimensions (with Hall-effect sensor and Temperature sensor)
| B57-51 | B57-102 | B57-127 | B57-152 | B57-200 | B57-300 | |
|---|---|---|---|---|---|---|
| Overall length A (mm) |
127 | 183 | 208 | 238 | 285 | 396 |
| Core dimension B±0.5 (mm) |
51 | 102 | 127 | 152 | 200 | 300 |
| Yoke dimension C±0.1 (mm) |
60 | 110 | 140 | 160 | 215 | 310 |
| Motor mass (kg) |
47 | 86 | 133 | 155 | 204 | 299 |
Specifications
| B57-51 | B57-102 | B57-127 | B57-152 | B57-200 | B57-300 | |
|---|---|---|---|---|---|---|
| Max. rotation speed N [r/min] |
250 | 120 | 100 | 85 | 65 | 30 |
| Rated max. torque T [N・m] |
330 | 590 | 700 | 832 | 985 | 1,280 |
| Motor constant KM [N・m/√W] |
13.2 | 21.5 | 24.8 | 27.8 | 32.9 | 42.9 |
| Torque constant Kt [N・m/A] |
7.55 | 14.9 | 18.5 | 22.2 | 29.1 | 58.1 |
| Rotor inertia JM [kg・m 2] |
0.50 | 0.97 | 1.2 | 1.4 | 1.9 | 2.7 |
Running torque curve
Simulation conditions
- *1 The simulation conditions are examples. We perform individual simulations based on the customer's specifications.
- Continuous rated torque is expressed (duty100%).
- Heat radiation condition: Natural heat radiation
- Envrionmental temperature: 40℃
- Winding maximum temperature: Up to 85℃
- *2Rotation detector is not considered.
Formula for calculating torque
√3/2 × torque constant between terminals Kt (N·m/A) × motor current lm [A]
Contact Information
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