Patent ID: 6736541
Filing Date: 2004-05-18
Classification: F16C,F16H

Abstract:
A linear motion guide unit, comprising a pair of guide rail members that are arranged movable relatively to one another and have confronting raceway grooves on their lengthwise sides, one to each side, a cage retaining more than one rolling element allowed to run through in a raceway defined between the raceway grooves on the guide rail members, and means for keeping the cage against wandering;wherein the means for keeping the cage against wandering is comprised of racks lying in gutters cut in the raceway grooves, one to each raceway groove, in opposition to one another, and a pinion having teeth mating with the opposing racks and installed in the cage for rotation; and wherein the rack is composed of successive teeth spaced apart from each other at preselected intervals to allow the teeth to mesh with the pinion, and side walls extending in longitudinal direction on sidewise opposite sides of the teeth, one to each side, to connect the successive teeth together with one another.