A retained roller set includes first and second individual tube-shaped members each having first and second axially spaced rings connected by bar elements that define pockets therebetween, the tube-shaped members being coaxially arranged and radially spaced to define a circumferentially extending intermediate space therebetween in which a plurality of roller elements are received and retained by the pockets of the first and second tube-shaped members.

The invention relates to a rolling element bearing cage formed of one or more segments, each segment comprising: a supporting frame having a plurality of spaced apart openings each for accommodating a rolling element; and a reinforcing frame, inserted within the supporting frame, having a corresponding plurality of openings each for aligning with the openings of the supporting frame.

A method of assembling a multi-row thrust bearing cage is disclosed. The method includes providing an inner cage and an outer cage, the inner cage including a first retainer and a first alignment guide, and the outer cage including a second retainer and a second alignment guide. The method includes positioning the inner cage and the outer cage relative to each other such that the first alignment guide is circumferentially aligned with the second alignment guide. The method also includes inserting the inner cage relative to the outer cage such that the first retainer of the inner cage engages with the second retainer of the outer cage and the inner cage is retained with the outer cage.

A retained roller set includes first and second individual tube-shaped members each having first and second axially spaced rings connected by bar elements that define pockets therebetween, the tube-shaped members being coaxially arranged and radially spaced to define a circumferentially extending intermediate space therebetween in which a plurality of roller elements are received and retained by the pockets of the first and second tube-shaped members.

A thrust roller bearing includes a plurality of rollers and a cage. Each cage pocket includes a first side surface, and a second side surface. The roller and the cage are configured to satisfy the following expression (1).
(Y1+Y2)/X<tan(3/180)(1)
Y1 represents a clearance, before skewing, between a first contact point of the roller at which the roller contacts the first side surface when the roller is skewed toward one side and the first side surface, Y2 represents a clearance, before skewing, between a second contact point of the roller at which the roller contacts the second side surface when the roller is skewed toward the one side and the second side surface, and X represents a difference between the radius of a first imaginary circle passing through the first contact point and the radius of a second imaginary circle passing through the second contact point.

The invention relates to a rolling element bearing cage formed of one or more segments, each segment comprising: a supporting frame having a plurality of spaced apart openings each for accommodating a rolling element; and a reinforcing frame, inserted within the supporting frame, having a corresponding plurality of openings each for aligning with the openings of the supporting frame.

A cage for a thrust roller bearing is provided. The cage has first and second cage members each having an outer ring portion formed radially outside of a roller retention hole. The outer ring portion has a flange portion that extends, from a radially outer end of the outer ring portion, in an axial direction and is divided along the circumferential direction. The flange portion has a large diameter portion and a small diameter portion. The first cage member and the second cage member are fastened to each other while the large diameter portion and small diameter portion of the first cage member overlap the small diameter portion and large diameter portion of the second cage member, respectively.

A roller retainer cage for a roller thrust bearing, including a first cage half with an annular portion, a first flange extending axially from an inner peripheral edge of the annular portion and a second flange extending axially from an outer peripheral edge of the annular portion, a second cage half including an annular portion, a first flange extending axially from an inner peripheral edge of the annular portion and a second flange extending axially from an outer peripheral edge of the annular portion, wherein the first flange of the first cage half is disposed radially-outwardly of the first flange of the second cage half, the second flange of the first cage half is disposed radially-inwardly of the second flange of the second cage half, and the first cage half is comprised of a through-hardened metal.

The invention relates to a rolling element bearing cage formed of one or more segments, each segment comprising: a supporting frame having a plurality of spaced apart openings each for accommodating a rolling element; and a reinforcing frame, inserted within the supporting frame, having a corresponding plurality of openings each for aligning with the openings of the supporting frame.

A thrust roller bearing includes a plurality of rollers and a cage. Each cage pocket includes a first side surface, and a second side surface. The roller and the cage are configured to satisfy the following expression (1).

(Y1+Y2)/X<tan(3/180)(1)

Y1 represents a clearance, before skewing, between a first contact point of the roller at which the roller contacts the first side surface when the roller is skewed toward one side and the first side surface, Y2 represents a clearance, before skewing, between a second contact point of the roller at which the roller contacts the second side surface when the roller is skewed toward the one side and the second side surface, and X represents a difference between the radius of a first imaginary circle passing through the first contact point and the radius of a second imaginary circle passing through the second contact point.