... Configuration: Worm and worm gear, bearing housing and lead screw 3. Function: Elevating, Lowering, Pulling, Pressing, Pushing, ... . Accessory: Motor, hand wheel, reducers, rubber Bellows, steel cover, bevel gearbox, Safety nut, frequency- inverter, brake, trunnion ... care, culture, health and others industries Keyword: screw jack, worm screw jack, ball screw jack, lift, planetary speed reducer, worm ...