| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent breakage of a cage and seizure for a certain period of time in which lubrication oil is not supplied. <P>SOLUTION: A rolling bearing includes an outer race 11, an inner race 20 disposed at an inner circumferential side of the outer race 11, a cage 30 disposed between the outer race 11 and the inner race 20 and having a plurality of pocket parts 34 equidistantly on a circumference, and a plurality of rolling elements 40 disposed in the pocket parts 34, wherein the cage 30 is composed of ring-like annular parts 31, 32 and a pillar part 33 extending in an axial direction relative to the annular parts 31, 32. In the rolling bearing, a holding member 50 comprising a porous body is provided on an inner circumferential surface of the pillar part 33 of the cage 30 at the inner race 20 side, many communication holes are formed by connecting pores in the holding member 50, and lubrication oil is held in the communication holes. <P>COPYRIGHT: (C)2012,JPO&INPIT |
