... :50/60Hz3)Power:1/4HP,1/3HP,1/2HP,1.0 HP, 1.5HP 4)Number of Pole:4Pole 1740rpm5)Working ... -quality aluminium alloy,light weight and non-rusting. Worm gearboxgear box,worm gear gearbox,worm gear box1)All gearing is manufactured in-house to industry ... worm shaft3) Less noise and lower temperature increase4) Easy mounting and linking, high efficiency5) Power: 0.06 - 15KW6) Output torque: 2.7 ...