... ,40T,50T,100T 2.Configuration: worm shaft,worm gear,bearing,oil seal 1.Model: RN-0.5T,1T,2T,3T,5T,10T ... ,30T,40T,50T,100T2.Configuration: worm shaft,worm gear,bearing,oil seal,housing and lifting Screw3.Function: Elevating, Lowering, Pulling, Pressing, Pushing ...