3 phase motor , the type has 90 BYG , 110BYG, 130BYG, the torque is from 2Nm to 50Nm , hybrid stepper motor . Product specification and performance Dimensionnumber of phasemaintenance torque NmStep angle(°)Electric current Aldling frequency Hzstart frequency Hzphase inductance mHrotor inertia kg/cm2voltage V90BYG350Aplug320.6/1.21300001600281.580-35090BYG350B340.6/1.21.1300001600383.080- ...