Patent ID: 7357576

Claim:
A linear sliding rail having a self-lubricating unit capable of adjusting a lubricant amount supplied therefrom, the linear sliding rail comprising a sliding rail and a sliding body fitted thereon, the sliding body having two ends each having an end cover and a lubricant removing piece, the self-lubricating unit comprising: a lubricant tank having a container disposed therein and having an open slot, a reception trough, a lubricant storage trough and connection holes; a tank cover disposed at an opening at an outer side of the container of the lubricant tank and having fixation holes and fillister each having a through-hole formed thereon, the fillister and an outer side of the tank cover forming an opening; a lubricant-containing device disposed within the lubricant tank and having a lubricant output end and through-holes thereon to provide a contact between the lubricant output end and the sliding rail through the open slot of the lubricant tank; two pressing bodies each having a positioning hole formed thereon and disposed within the lubricant tank located interior to the lubricant-containing device and aligned to a portion of the lubricant-containing device contacted with the sliding rail; two screws penetrating the positioning holes of the pressing bodies and the through-holes of the lubricant-containing device and then penetrating and protruding the through-holes of the tank cover; and two adjustment bolts each connected to one of a distal end of the screws and received within a corresponding one of the fillisters of the tank cover to adjust how closely the pressing bodies are contacted with the lubricant-containing device by being rotated.