| 摘要 |
<p>PROBLEM TO BE SOLVED: To transfer and feed a lubricant to a periphery surface of a roller, to inhibit a rising of a temperature and to enhance a durability. SOLUTION: In this roller bearing retainer 1 in which pockets 2 are formed at several sites on a circumference, a plurality of fine recessed parts 6 as a lubricant oil sump are provided on a whole surface of inner surfaces of an axial intermediate part A and axial both side parts B, C of a pillar part 3 for separating the respective pockets 2. At the time of use, a lubricant is stored in the fine recessed parts 6. When rollers 5 are contacted with the inner side surface of the pillar part 3, the lubricant in the fine recessed parts 6 is transferred and fed to a periphery surface of the rollers 5. Thereby, a lubricant oil film is continuously formed on the periphery surface of the rollers 5 and a lubrication state of a slide contact part of the rollers 5 and the pillar part 3 becomes well.</p> |
