The cage segment for rolling bearing has a main body provided with at least two pockets each configured to receive at least a roller, with two opposite cylindrical faces extending circumferentially and delimiting radially the cage segment, and with two opposite frontal faces delimiting axially the cage segment. The cage segment further provides a first group of protruding means affixed to the main body and protruding relative to the cylindrical faces, and a second group of protruding means affixed to the main body and protruding relative to the frontal faces.

A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and an annular cage that holds the tapered rollers. The cage has a small annular portion positioned toward the axially first side with respect to the tapered rollers, a large annular portion positioned toward the axially second side with respect to the tapered rollers, and a plurality of cage bars that couples the small annular portion and the large annular portion together, and the cage is enabled to come into contact with an inner peripheral surface of the outer ring so that the contact allows the cage to be positioned in a radial direction. The small annular portion is provided with introduction channels through which lubricant is enabled to be introduced from a bearing exterior on the axially first side into an annular space formed between the inner and outer rings.

A component of a universal joint bearing includes at least one casing having a cylindrical wall and a base and at least one formation projecting from the base. The at least one formation is receivable in a clamp of a rotational processing machine to secure the component to the rotational processing machine during a rotational machining of a wall of the component. Also a method that includes clamping the component by the formation and machining inner and outer surfaces of the component without unclamping the component.

A cage for a radial roller bearing includes an inner cage member made of a continuous annular steel material and having a plurality of through holes, in which a plurality of rollers is housed in a corresponding one of the through holes, and an outer cage member made from resin and having a plurality of retaining holes, in which the plurality of rollers is retained such that the rollers are rollable, provided in correspondence with the through holes. The outer cage member is fixed to an outer side of the inner cage member by an axial projection-recess fitting structure.

A cage for a radial roller bearing includes an inner cage member made of a continuous annular steel material and having a plurality of through holes, in which a plurality of rollers is housed in a corresponding one of the through holes, and an outer cage member made from resin and having a plurality of retaining holes, in which the plurality of rollers is retained such that the rollers are rollable, provided in correspondence with the through holes. The outer cage member is fixed to an outer side of the inner cage member by an axial projection-recess fitting structure.

A ball retainer includes a chain belt, a hook, and a slot portion. The hook is arranged on the first end of the chain belt. The hook includes a neck portion, a hook body, two leaning protrusions, and a limiting protrusion. The hook body is connected to the neck portion. The two leaning protrusions extend outward along the short side direction of the chain belt toward two sides of the hook body, respectively. The slot portion is arranged on the second end of the chain belt. The slot portion includes a slot, two abutting portions, a connecting portion, and a receiving portion. After the hook is correspondingly engaged with the slot portion, the hook body is accommodated in the slot, the two leaning protrusions correspondingly lean against the two abutting portions, the neck portion leans against the connecting portion, and the limiting protrusion is correspondingly accommodated in the receiving portion.

A segmented cage for a bearing is provided. The segmented cage provides at least two successive segments each being able to receive at least one rolling element. These segments have inner and outer circumferential faces and adjacent end faces abutting circumferentially one on the other. The adjacent end faces are shaped to obtain only one contact line or contact point between them, the contact point or contact line being distant from the inner and outer circumferential faces.

A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers provided in an annular space formed between the inner and outer rings and rolling on an inner raceway surface and an outer raceway surface, and an annular cage that holds the tapered rollers. The cage has a small annular portion positioned toward an axially first side with respect to the tapered rollers, a large annular portion positioned toward an axially second side with respect to the tapered rollers, and a plurality of cage bars that couples the small annular portion and the large annular portion together. A minute clearance is formed between the inner ring and the large annular portion and between the outer ring and the large annular portion, respectively.

The cage segment for rolling bearing has a main body provided with at least two pockets each configured to receive at least a roller, with two opposite cylindrical faces extending circumferentially and delimiting radially the cage segment, and with two opposite frontal faces delimiting axially the cage segment. The cage segment further provides a first group of protruding means affixed to the main body and protruding relative to the cylindrical faces, and a second group of protruding means affixed to the main body and protruding relative to the frontal faces.

A split bearing cage for a rolling-element bearing assembly includes a first bearing cage segment and a second bearing cage segment each having two side ring sections axially spaced apart by a plurality of bridges. Adjacent pairs of the bridges define rolling-element receiving pockets for receiving rolling elements of the rolling-element bearing assembly and for holding the rolling elements spaced apart from each other and for guiding the rolling elements. The first bearing cage segment is connected to the second bearing cage segment via a swivel joint that may be formed of a bolt element on a first end of the first bearing cage segment and an at least partial eyelet on the first end of the second bearing cage segment.