A stepper motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application.
This is a 4 phase stepper motor 57BYGH7630. There are two basic winding arrangements for the electromagnetic coils in the two phase stepper motor: bipolar and unipolar. It is high quality with 13.5 Kg.cm holding torque. The motor length is 78 mm.
Specifications
| Step Angle | 1.8° |
| Motor length | 78 mm |
| Rated Voltage | 3V |
| Rated Current | 3.0A |
| Phase Resistance | 1.0Ω |
| Phase Inductance | 1.6mH |
| Holding Torque | 13.5Kg.cm |
| Rotor Inertia | 480g.c㎡ |
| Lead Wire | 6 |
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