... TypeTranslating Screw, Keyed Screw, Rotating Screw ConfigurationsSelf-Locking Trapezoidal Screw,Worm Gear,Worm Shaft,Taper Roll Bearing,Housing,Grease Oil Sealing etc. MountingUpright, Inverted ... EndTop Plate,Clevis End,Threaded End,Plain End and Forked HeadFunctionsLifting, Lowering, Pushing, Pulling and Rolling Linear Motions ArrangementsSingle Unit, In Pairs ...