Patent ID: 8480307

Claim:
A ball roller bearing, comprising: an outer bearing ring having a first groove-shaped race machined into an inner side of the outer bearing ring; an inner bearing ring having a second groove-shaped race machined into an outer side of the inner bearing ring; and a plurality of ball rollers arranged between the bearing rings, the ball rollers have running surfaces and roll between the first groove-shaped race of the outer bearing ring and the second groove-shaped race of the inner bearing ring; and a bearing cage arranged to hold the ball rollers at uniform distances from one another in a circumferential direction, wherein the bearing cage is a window cage having two lateral angular flanges of identical diameter, a plurality of pocket webs that connect the angular flanges to one another and form a plurality of cage pockets that are separated from one another by the pocket webs and have a capstan shape which is formed from a free contour that is arranged transversely with respect to the circumferential direction for inserting the ball rollers into the bearing cage and from a cross-sectional contour of the ball rollers, the cross-sectional contour is integrated in the free contour and is arranged longitudinally with respect to the circumferential direction, wherein the pocket webs have side edges configured with radii of arcuate guide faces for the ball rollers by the capstan shape of the cage pockets, wherein the guide faces correspond to the running surfaces of two adjacent ball rollers, and wherein the pocket webs have additional material profiles for an axial reinforcement of the bearing cage, both between the side edges and on the guide faces, and the material profiles on the guide faces are simultaneously configured to dampen against bearing noise.