A one-way snap-in bearing cage providing a substantially annular backbone, and a hanging-out portion extending from the backbone to one axial side, the hanging-out portion having pockets, which are distributed at intervals in a circumferential direction and used to accommodate spherical rollers, and pocket connections for connecting adjacent pockets. The pocket, at least in the vicinity of a radial inner edge at an opening side of the pocket, employs an expanding design achieving remoteness from a surface of the roller.

A rolling bearing includes: an inner ring; an outer ring; a plurality of balls provided between an inner ring raceway and an outer ring raceway; and an annular cage in which the balls are held at intervals in the circumferential direction of the cage. The cage includes an annular body, a plurality of first cage prongs, and a plurality of second cage prongs. A radially outer part of each of the first cage prongs includes a recessed portion. The recessed portion is constituted by a region surrounded by a first side wall surface, a second side wall surface, a bottom wall surface, and a third side wall surface.

A vehicle wheel bearing device (1) is equipped with a cage (7) in which a pocket (Pt) is formed by adjacent pillar sections (7b) and a base section (7a) that is therebetween, and which retains a ball (8) in the pocket (Pt). Formed in the pillar sections (7b) are a claw portion (7e) and another short claw portion (7g) which project towards adjacent pillar sections, as well as a notched section (7i) cut toward the base section from the distal end radially inward of the claw portions of the pillar sections (7b). When viewed from the axial direction, the shortest length in the one claw portion (7e) to the center of the ball and the shortest length in the other short claw portion (7g) to the center of the ball are different.

A rolling bearing includes: an inner ring; an outer ring; a plurality of balls provided between an inner ring raceway and an outer ring raceway; and an annular cage in which the balls are held at intervals in the circumferential direction of the cage. The cage includes an annular body, a plurality of first cage prongs, and a plurality of second cage prongs. A radially outer part of each of the first cage prongs includes a recessed portion. The recessed portion is constituted by a region surrounded by a first side wall surface, a second side wall surface, a bottom wall surface, and a third side wall surface.

The present invention provides a bearing cage for a rotor bearing of a turbomolecular pump. The bearing cage comprises a plurality of bearing pockets each of which, in use, houses a bearing ball such that the bearing ball operably engages an inner race and an outer race of the rotor bearing. Each bearing pocket of the bearing cage has a primary chamber for housing the bearing ball and each bearing pocket further comprises a sump.

A bearing cage assembly including two different cage halves formed from different materials is disclosed. The first cage half includes a first rim and a first plurality of arms extending from the first rim. The second cage half includes a second rim and a second plurality of arms extending from the second rim. The first cage half and the second cage half are fastened to each other via engagement between a plurality of first retainers of the first cage half with the plurality of second retainers of the second cage half.

A bearing unit having at least one row of rolling bodies; and at least one cage for retaining a respective one of the at least one row of rolling bodies. The at least one cage comprising at least one base bar, a plurality of arms circumferentially spaced apart and extending from one side of the base bar, and a plurality of partially spherical cavities for retaining the respective one of the at least one row of rolling bodies. The respective row of rolling bodies and the at least one cage are in contact with each other along contact points positioned near a polar region of the respective one of the at least one row of rolling bodies, so that an angular distance (α) of the contact points with respect to an equator of the respective one of the at least one row of rolling bodies is between 40° and 75°.

A bearing includes an outer ring, an inner ring provided on the inner side in the radial direction of the outer ring, a rolling body provided between the outer ring and the inner ring, and a holder including a base formed in an annular shape around a center axis of the outer ring and the inner ring and a first wall section and a second wall section provided to project from the base, the holder holding the rolling body. The first wall section includes a first channel provided in the circumferential direction of the base. The second wall section includes a second channel provided in the circumferential direction of the base. The position of the first channel in the first wall section and the position of the second channel in the second wall section are different.

A bearing cage assembly including two different cage halves formed from different materials is disclosed. The first cage half includes a first rim and a first plurality of arms extending from the first rim. The second cage half includes a second rim and a second plurality of arms extending from the second rim. The first cage half and the second cage half are fastened to each other via engagement between a plurality of first retainers of the first cage half with the plurality of second retainers of the second cage half.

A bearing cage assembly is disclosed. The assembly includes a stiffening ring formed from a first material, and a cage formed from a second material that is different than the first material. The cage includes a plurality of arms extending axially away from a base rim. The plurality of arms define a plurality of rolling element pockets therebetween. Each of the plurality of arms defines a slot dimensioned to receive a portion of the stiffening ring, such that the stiffening ring is secured to the cage via engagement within the slots of the plurality of arms.