Patent ID: 7048443

Claim:
A linear guide apparatus comprising: an axially extending guide rail having a first rolling groove on its outer surface; a slider engaged with the guide rail and having a second rolling groove, rolling element return grooves and curved grooves, the second rolling groove confronting the first rolling groove, the rolling element return grooves being coupled to both end portions of the second rolling groove through the curved grooves, respectively; a plurality of rolling elements loaded into the slider to be made circulatable through the second rolling groove, the curved grooves, and the rolling element return grooves; and a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, the sealing device comprising: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, and a connecting portion connecting the wing portions to be C-shaped substantially; and a first plate member fitted to the lubricant-containing polymer member, wherein the lubricant-containing polymer member is interposed between the slider and the first plate member, wherein the lubricant-containing polymer member has an inner bottom face arc-shaped in the connecting portion which elastically protrudes toward the guide rail.