Abstract: The invention relates to a wheel bearing unit (1) for a vehicle wheel, comprising a hub element (2, 3, 2?) which has an axially (a) extending cylindrical section (4) to be supported by a bearing arrangement (5) and which has a radially (r) extending flange section (6) for fixing the vehicle wheel and/or a brake disk at a face side (7) of the flange section (6), wherein the bearing arrangement (5) has an outer ring (8). To ensure a firm and cost effective axial connection between the hub element and the outer ring, the invention is characterized in that the outer ring (8) has a radially extending insection (9) at its a outer circumference (10), wherein the axially (a) extending cylindrical section (4) of the hub element (2, 3, 2?) is deformed partially (11) so that a section of it interferes in the insection (9) for axially fixing the hub element (2, 3, 2?) relatively to the outer ring (8). The invention also relates to a method for producing a wheel bearing unit.

Abstract: The invention relates to a wheel bearing unit (1) for a vehicle wheel, comprising a hub element (2, 3, 2?) which has an axially (a) extending cylindrical section (4) to be supported by a bearing arrangement (5) and which has a radially (r) extending flange section (6) for fixing the vehicle wheel and/or a brake disk at a face side (7) of the flange section (6), wherein the bearing arrangement (5) has an outer ring (8). To ensure a firm and cost effective axial connection between the hub element and the outer ring, the invention is characterized in that the outer ring (8) has a radially extending insection (9) at its outer circumference (10), wherein the axially (a) extending cylindrical section (4) of the hub element (2, 3, 2?) is deformed partially (11) so that a section of it interferes in the insection (9) for axially fixing the hub element (2, 3, 2?) relatively to the outer ring (8). The invention also relates to a method for producing a wheel bearing unit.

Abstract: A roller bearing cage comprises first and second annular elements, each having at least three radially-extending bulges or indentations spaced around a circumferential direction of the annular elements. An axially-facing surface of each bulge or indentation serves as a guide surface for one axial end of a roller body. A plurality of bridge elements are bonded to and connect the first and second annular elements. Each bridge element is disposed between two adjacent bulges or indentations on a radial side of the annular elements that is opposite of the extension direction of the radially-extending bulges or indentations. The bridge elements are configured to support rolling surfaces of respective roller bodies such that a pocket for a roller body is defined between each two adjacent bridge elements and each two axially-opposing, radially-extending bulges or indentations.

Abstract: A roller bearing cage includes at least one bridge element having a surface provided for directly opposing an outer surface of a roller body. A plurality of ship-hull-shaped or droplet-t-shaped macroscopic recesses is formed in the surface for retaining a lubricant therein. The recesses have at least one of a width and a depth in the circumferential direction of the roller body that diminishes towards at least one end in the circumferential direction. A first group of the recess diminishes in a direction substantially towards one of the ends and a second group of the recess diminishes in a direction towards the other end.

Abstract: A rolling bearing cage has at least U-shaped limited pockets for rolling bodies. In the rolling cage, the U-shaped delimitation of one of the pockets is configured by the bonded connection of two web elements on an annular circumferential element, the circumferential element is free of cavities and penetrations for a complete connection to sections of the web elements, and the elements are configured to have a shape adapted to each other for placing the elements in the intended position for the bonded connection such that the positions of the web elements on the circumferential element is predetermined in the circumferential direction and/or in the axial direction of the circumferential element.