| 摘要 |
A cage bar of at least one of pockets, the cage bar being on one side of the at least one of the pockets in the circumferential direction, has a bent portion that is bent toward one side in an axial direction such that an end face of the cage bar on the other side in the axial direction is recessed toward the one side in the axial direction. Further, a cage bar of the at least one of the pockets, the cage bar being on the other side of the at least one of the pockets in the circumferential direction, has a bent portion that is bent toward the other side in the axial direction such that an end face of the cage bar on the one side in the axial direction is recessed toward the other side in the axial direction. |
| 主权项 |
1. A cage for a thrust roller bearing, the cage comprising:
a first annular portion; a plurality of cage bars configured to extend from the first annular portion in a radial direction of the first annular portion, and located at intervals in a circumferential direction of the first annular portion; a second annular portion opposed to the first annular portion in the radial direction, and connected to the first annular portion by the plurality of cage bars; and a plurality of pockets disposed between the plurality of cage bars and being adjacent to each other in the circumferential direction, wherein: a first cage bar of the plurality of cage bars disposed on one side of at least one of the pockets includes a bent portion that is bent toward one side in an axial direction such that an end face of the first cage bar on the other side in the axial direction is recessed toward the one side in the axial direction, a second cage bar of the plurality of cage bars disposed on the other side of the at least one of the pockets includes a bent portion that is bent toward the other side in the axial direction such that an end face of the second cage bar on the one side in the axial direction is recessed toward the other side in the axial direction, each of the first annular portion and the second annular portion includes inter-cage bar portions located between the plurality of cage bars adjacent to each other in the circumferential direction, at least one of the inter-cage bar portions includes a one axial side inclined portion inclined toward one side in the axial direction, in a direction toward the one side in the circumferential direction, and the inter-cage bar portion adjacent to the at least one of the inter-cage bar portions on the one side in the circumferential direction includes an other axial side inclined portion inclined toward the other side in the axial direction, in the direction toward the one side in the circumferential direction. |
