... vibration4 stable temperatureFeature:1 SR driver model Y3SSR8,60mm 3 phase step motor match with ME120N power supply ... , 86mm 3 phase step motor match with ME180N power supply ,max current ... 5000,6400,51200 available,pulse+direction control mode2 motor size 60&86mm,length 54.5&76.5 ... the current noise, no-loading motor speed can reach to 4000rpm5 motor current can be reduced half or ...