| 摘要 |
PROBLEM TO BE SOLVED: To provide a radial roller bearing retainer that can perform rotary guide in a broader area without restricted in an assembling direction and is excellent in wear resistance while improving lubricating performance, even when a retainer end face guide part is insufficient.SOLUTION: The radial roller bearing retainer includes: a pair of substantially annular rim parts 4a, 4b, assembled in a radial roller bearing lubricated with a lubricant in the bearing and opposing to each other at a predetermined distance coaxially in an axial direction; and a plurality of column parts 6 connecting the rim parts and circumferentially segmenting the space area therebetween to form pockets 10 for rotatably holding rollers. The pair of rim parts 4a, 4b is set to have given outer diameter dimensions and inner diameter dimensions, includes passage parts 42a, 42b for allowing the lubricant to flow. The passage parts 42a, 42b are configured to penetrate the respective rim parts 4a, 4b respectively in the axial direction to communicate with at least the plurality of pockets 10. |
