... convenient operation. It’s made of worm gear reducer,hydraulic motor of low speed and big torque ... and rises the torque by the worm gear pair reducer, generating big torque on the drum, ... not include motor)kg70kgLubrication for Worm Gear Box,N460 Industrial Gear Oil Fuel Charge,400mL~450mLNotice: This ... connection of the hydraulic motor and worm gear box ensures the light weight. Compact structure ...