Angular ball bearing cage and angular ball bearing
AssigneeNsk Ltd.
InventorYuki FUKUHARA
Life of this patent
Estimating the term…
Abstract
Each of column portions has a first branch portion and a second branch portion bifurcated in the circumferential direction at one end portion in the axial direction, and a grease storage groove between the first and second branch portions, a tip-end portion of the first branch portion of one column portion and a tip-end portion of the second branch portion of an adjacent column portion are connected in the circumferential direction, and a tip-end portion of the second branch portion of the one column portion and a tip-end portion of the first branch portion of another adjacent column portion are connected in the circumferential direction.
Claims5
An angular ball bearing cage, comprising:
- an annular small-diameter rim portion;
- a plurality of column portions extending toward one side in an axial direction from a plurality of locations in a circumferential direction of the small-diameter rim portion;
- and
- a plurality of pockets for holding balls, each of the plurality of pockets provided in a portion surrounded by the small-diameter rim portion and column portions adjacent in the circumferential direction of the plurality of column portions;
- each of the plurality of column portions having a first branch portion and a second branch portion extending bifurcated in the circumferential direction at an end portion on the one side in the axial direction, and a grease storage groove formed in a portion between the first branch portion and the second branch portion;
- and
- a tip-end portion of the first branch portion of one column portion of the plurality of column portions and a tip-end portion of the second branch portion of a column portion adjacent to the one column portion of the plurality of column portions extend in directions approaching each other in the circumferential direction and are connected in the circumferential direction, and a tip-end portion of the second branch portion of the one column portion and a tip-end portion of the first branch portion of a column portion adjacent to the one column portion of the plurality of column portions extend in directions approaching each other in the circumferential direction, and are connected in the circumferential direction.
Dependencies are inferred from the claim text.