| 摘要 |
PROBLEM TO BE SOLVED: To provide a needle rolling bearing further enhanced in the rigidity of a rolling bearing cage, excellent in durability in even a high-speed high-load environment, and particularly suitable for a planetary gear of a planetary gear mechanism.SOLUTION: A rolling bearing cage has an annular part and a plurality of columns extending from the annular part in the axial direction, and holds rollers between the adjacent columns. The rolling bearing cage has, on its outside diameter face, an electroless nickel plating membrane containing boron. There is also provided a rolling bearing having the rolling bearing cage. |
