Rolling element

摘要

The bearing (30) has inner and outer races or rings (31, 32) between which balls (33) are rotatably disposed with a retainer (34). Outer race (31) is formed at its inner peripheral surface with a ball race or groove which peripherally extends. Inner race (32) is formed at its outer peripheral surface with a ball race or groove which peripherally extends. Each ball is slidably fitted at the ball races of outer and inner races. Independent claims are also included for the following: (a) a cam follower (b) a low friction sliding combination of a cam and a cam follower.