| 摘要 |
A linear motion guide unit is disclosed in which the lubrication points of lubricant around a rolling element(5) are made in a turnaround passage(30) to ensure proper and steady lubrication by the lubrication system simple in construction, with accompanying sustainable maintenance-free condition for lubrication. A hole(37) open to the turnaround passage(30) is bored through an outward end surface (47) of an end cap(4). A lubricant reservoir(25) of porous compact product fits into a recess(31) made in the outward end surface(47) of the end cap(4). The lubricant reservoir(25) has noses(26) protruding to fit into the hole(37) in the outward end surface(47) of the end cap(4) to expose itself to the turnaround passage(30) in such a way forming a part of the curved wall of the associated turnaround passage(30). The noses(26) come into rolling-touch with the rollers(5) as they roll through the turnaround passage(30), applying the rollers(5) with lubricant reseivoir(25) delivered from the noses(26). |
