RESIN CAGE FOR ROLLING BEARING, AND ROLLING BEARING

摘要

PROBLEM TO BE SOLVED: To prevent a cage 5 from locally having high temperature.SOLUTION: A resin cage for a roller bearing includes annular parts 10, 11, and a plurality of pillars 20 separately provided in the circumferential direction. The pillar 20 has an internal space section 50, in which liquid 51 is filled. The heat generating in the cage is transmitted to the liquid 51 in the space section 50, and the liquid 51 convects in the space section 50 to dissipate the heat.