| 摘要 |
PROBLEM TO BE SOLVED: To provide a thrust roller bearing preventive of wear due to the interference of a cage with a shaft while securing the rigidity of the cage. SOLUTION: The thrust roller bearing 11 comprises a plurality of rollers 12, and the cage 13 as a discoid member with a hole 14 in the center, including a holding part 16 having a plurality of pockets 17 storing the rollers 14 and extending to the radial direction and an inner periphery collar part 15 located on the inner periphery of the holding part 16. The inner periphery collar part 15 has a cylindrical portion 15a facing the hole 14 and linearly extending to the direction of the thickness, and a collar portion including first and second bent portions 15b, 15c bent from both axial ends of the cylindrical portion 15a to the radial outside with a predetermined curvature factor. COPYRIGHT: (C)2008,JPO&INPIT
|
