| Model | GM15BY-150-4.4D | |
| Voltage | 5.0V | 12.0V |
| Reduction gear ratio | 1:150 | |
| Phase | 2 phase | |
| Driving mode | Bipolar 2-2 phase | |
| Step angle | 0.12° ±7% | |
| Rotation mode | CW/CCW | |
| Torque | 700gf.cm (Ref) | |
| Inductance | 9.5mH±20% | |
| Single phase coil resistance | 30Ω±7% | 30Ω±7% |
| Holding torque At 0 Hz | 700gf.cm Min | 1800gf.cm Min |
| Put-out torque | 550gf.cm Min | 1300gf.cm Min |