56mm Diameter Planetary Gearbox
56PA-57BYG
Features:
- NEMA 23 Stepping motor
- Gear Ratios from 4:1 up to 77:1
- Rated Output Torque up to 39Nm (5555 oz-in)
Gear Box Data
| Reduction Ratio | X:1 | 3.6 | 4.25 | 12.96 | 15.3 | 18.063 | 46.656 | 55.08 | 65.025 | 76.766 |
| Number of gear trains | # | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
| Max Permissible Torque | kg.cm | 200 | 200 | 300 | 300 | 300 | 400 | 400 | 400 | 400 |
| Moment Permissible Torque | kg.cm | 400 | 400 | 500 | 500 | 500 | 600 | 600 | 600 | 600 |
| Gear Box Length | mm | 49.5 | 49.5 | 64.5 | 64.5 | 64.5 | 79.5 | 79.5 | 79.5 | 79.5 |
Motor Specifications
| Model | Step Angle | Length (Ld) | Phase Voltage | Phase Current | Phase Resistance | Phase Inductance | Holding Torque | Lead Wire |
| ° | mm | V | A | Ω | mH | kg.cm | # | |
| 57BYGH41(M)-144-4A/B | 1.8/0.9 | 41 | 4.1 | 1.44 | 2.85 | 5.4 | 4 | 4 |
| 57BYGH51(M)-144-4A/B | 1.8/0.9 | 51 | 4.74 | 1.44 | 3.3 | 8.2 | 9 | 4 |
| 57BYGH56(M)-100-6A/B | 1.8/0.9 | 56 | 7 | 1 | 7.6 | 10 | 9 | 6 |
| 57BYGH56(M)-280-4A/B | 1.8/0.9 | 56 | 2.52 | 2.8 | 0.9 | 2.5 | 12.5 | 4 |
| 57BYGH76(M)-200-6A/B | 1.8/0.9 | 76 | 5 | 2 | 2.25 | 3.6 | 13.5 | 6 |
| 57BYGH76(M)-280-4A/B | 1.8/0.9 | 76 | 3.16 | 2.8 | 1.13 | 3.6 | 18.9 | 4 |
Replace □ with A = single shaft; replace □ with B = double shaft