Patent ID: 6869220
Filing Date: 2005-03-22
Classification: F16C

Abstract:
1. A linear guide device comprising: a plurality of rolling elements; a guide rail extending in an axial direction thereof and having a rolling element rolling groove which is formed in a side wall thereof and is extended in the axial direction; and a slider including a rolling element rolling groove, which faces said rolling element rolling groove of said guide rail, said slider being supported in a manner that said slider is axially movable through the rolling of said rolling elements put in a space defined between said rolling element rolling grooves of said guide rail and said slider, said slider further including a return passage axially passing through said slider and also first and second curved element circulating R-parts which communicate said return passage, said space and said slider so as to form a rolling element endless circulating passage through which the rolling elements are endlessly circulated, wherein a rate of change expressed as “Dmax−Dmin” approaches 0.35, where Dmax and Dmin are respectively a local maximum and a local minimum of D when a first rolling element of said rolling elements moves a distance corresponding to a rolling element-to-rolling element span, D is expressed as (dx dx dx