| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing with improved lubricating property and durability. <P>SOLUTION: Nine first impellers 31 with blade-like cross section protrude from the tip end of a jaw part 23 of a cage 13, and nine second impellers 33 with blade-like cross section also protrude from the rear end of a ring part 21. The first and second impellers 31, 33 are arranged almost along a radial line passing through the center of each jaw part 23 from the center of the cage 13. Intervals t1 and t2 between both of the impellers 31, 33 and elastic seals 15 and 17 are set to 0.03D or more even in consideration of a gap and dimensional tolerance between respective components, where the diameter of a steel ball 11 is designated as D. <P>COPYRIGHT: (C)2003,JPO |
