... ,40T,50T,100T2.Configuration: worm shaft,worm gear,bearing,oil seal,housing and lifting Screw3.Function: Elevating, Lowering, Pulling, Pressing ... : Positioning precision,Safely self-locking,Heavy duty,Uniform lifting speed,small sizes,easy installation,low noise,long life ... ~100:17.Input Horsepower Ranges: 8.Lifting Screw Diameters: 9.Lifting Screw Pitch: 10.Lifting Speed: 11.Accessory: 12.Application: ...