Patent ID: 6257766
Filing Date: 2001-07-10
Classification: F16C

Abstract:
A linear motion guide unit comprising a track rail provided at lengthwise side surfaces thereof with first raceway grooves, a sliding element movable with relative to the track rail and having second raceway grooves confronting the first raceway grooves, and lubricating means for lubricating the confronting first and second raceway grooves, wherein the lubricating means is comprised of a case provided therein with a lubricant reservoir containing lubricant and riding the track rail astride, and a lubricating plate assembly having a lubricant-containing member that is mounted on the case to lid the lubricant reservoir and comes in sliding contact with the first raceway grooves, so that the lubricant contained in the lubricant-containing member is applied to the first raceway grooves while the lubricant-containing member is replenished with the lubricant in the lubricant reservoir, wherein the case has an opening facing the lubricant reservoir at fore-and-aft one end of the sliding element, and the lubricant reservoir is closed with the lubricating plate assembly fitted to the opening.