| 摘要 |
PROBLEM TO BE SOLVED: To provide a retainer of a roller bearing, in which friction of a roller can be reduced in severe use conditions.SOLUTION: A retainer 10 of a roller bearing includes: a pair of annular parts 11, 11 arranged at an interval in the axial direction; and a plurality of retainer bar parts 21 which are arranged at an interval in the peripheral direction and connect the pair of annular parts 11, 11. Each retainer bar part 21 includes a lateral wall surface 22 which defines a pocket 40, an outer diameter side roller stopping part 23 which is located on the outer diameter side and protrudes from the lateral wall surface 22 toward the pocket 40, an inner diameter side roller stopping part 24 which is located on the inner diameter side and protrudes from the lateral wall surface 22 toward the pocket 40 and grooves 25 formed on the lateral wall surface 22. |
