Cage for roller bearing

Roller bearing comprising an inner an dan outer race track and a row of elongated rollers provided between the race tracks in contact with the race tracks and received in cage pockets in a cage, whereby the race tracks and the rollers have curved longitudinal section profiles, and wherein the rollers without hindrance of annular flanges at the race tracks are movable axially between the race tracks relative to both of the race tracks for permitting a mutual angular tilting of the race tracks, each cage pocket being designed with opposed guiding surfaces intended to cooperate with a roller contained in the cage pocket at the axial middle portion of the roller for centering the cage, the axial measure of the pocket being larger than the length of the roller so that there is axial clearance between opposed surfaces on the axial side edged of the pocket and the end surfaces of the roller when the roller is centered axially, and a space between axial bars bordering the cage pockets, at the two opposed end portions of the pocket being larger than the diameter of the roller, at the corresponding end portions of the roller, such that a relative radial movement is allowed between the roller and the cage at said end portions.