... units, are novel transmission device and composed of Y series motor, helical gear,Gelisen arc gear and worm gear. ... -resisting alloy materials, specially and finely processed. Advantages: 1:Compact design, small volume, nice appearance ,and strong capacity of ... device, strong adaptability. 6:The HK Series can match with general Y series motor, Y2 series motor, overload motor, Brake motor, frequency ...