RADIAL ROLLER BEARING CAGE

摘要

PROBLEM TO BE SOLVED: To provide a radial roller bearing cage for enabling axial loads generated by the skew of rollers to cancel each other therein, while maintaining its strength.SOLUTION: A plurality of pocket parts 26 have a plurality of first pocket portions 27 whose center axes X are inclined to a center axis P of a cage 20B toward one side in the peripheral direction, a plurality of second pocket portions 28 whose center axes Y are inclined to the center axis P of the cage 20B toward the other side in the peripheral direction, and a plurality of third pocket portions 29 whose center axes Z are parallel to the center axis P of the cage 20B. An inclination angleαof the center axis X of each first pocket portion 27 toward one side in the peripheral direction and an inclination angleβof the center axis Y of each second pocket portion 28 toward the other side in the peripheral direction are set to be almost equal (α=β). The plurality of first-third pocket portions 27, 28, 29 are arranged in the order of the first pocket portion 27, the third pocket portion 29, the second pocket portion 28 and the third pocket portion 29 in a repetitive manner.