SLIDE GUIDE HAVING PRELOADED HOLLOW AND SOLID ROLLER BEARINGS

摘要

A machine slide having a support member and a carriage member movable on said support. One of said members having a channel formed in it and the other member having a guide tongue that extends into the channel. Raceways are formed along the inner surfaces of the channel opposite surfaces of the guide tongue. Roller bearings have a portion of their circular surfaces in bearing contact with the raceways and also a portion of their circular surfaces in bearing contact with the wall surfaces of the guide tongue which are opposite the raceways. The roller bearings are comprised of both solid rolls and hollow rolls. The distance between all the opposite surfaces upon which the hollow rolls bear when assembled is less than the diameter of the hollow rolls whereby when the hollow rolls are positioned in place between their opposite bearing surfaces they are compressed between said bearing surfaces to strain them and pre-loaded solid rolls.