Stepping motor in three kinds: permanent magnet (PM), reactive (VR) and hybrid (HB)

Permanent magnet stepping, generally for two phase, torque and volume is small, step Angle is 7.5 or 15 degrees commonly;

Reactive step for three-phase commonly, can achieve high torque output, stepper Angle of 1.5 degrees commonly, but the noise and vibration are very big. In Europe and the United States and other developed countries have been eliminated in the 80 s.

Hybrid stepping refers to a mixture of permanent magnet and the advantages of reactive. It is divided into two phase four and five phase: two phase stepper Angle of 1.8 degrees commonly and five phase stepping Angle of 0.72 degrees. The application of the stepper motor is more widely.