Patent ID: 7845854
Filing Date: 2010-12-07
Classification: F16C,F16H

Abstract:
1. A motion guide device, comprising: a track member; and a movable member mounted to the track member to be movable through a plurality of rolling members, wherein the track member or movable member includes a rolling portion formed of a metal material constituting a rolling surface of the rolling member in contact to the rolling members, and a track member body or movable member body formed of a fiber reinforced plastics (FRP) forming the track member or movable member by being joined with the rolling portion, wherein the rolling portion has a minimum thickness more than a maximum shearing stress depth obtained based upon a long axis radius of said rolling portion, a short axis radius of said rolling portion, a radius of curvature of said track member body or movable member body, a load of said track member or movable member body, and a vertical elasticity coefficient of material of said track member body or movable member body, and wherein the rolling portion has a maximum thickness satisfying an equation of E