Abstract: A bearing cage for a rolling element bearing includes a plurality of individual bearing cage segments configured to respectively accommodate rolling elements in rolling element pockets formed by the bearing cage segments. Each bearing cage segment includes a first coupling device disposed on a first axial end thereof. A first lamellar support ring defines first and second ring halves that are connected to each other, are axially adjacent to each other are biased towards each other. The first ring half extends through the respective first coupling devices of the plurality of bearing cage segments and the second ring half is disposed on an axially-inner side or an axially-outer side of the first coupling devices such that the first coupling devices are clamped between the first and second ring halves.

Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. The bearing support comprises at least first and second portions that are connected together. The first portion is formed as a component that has cylindrical openings configured to receive or seat the respective bearing outer rings and to surround the entire circumference of the respective bearing outer ring. The second portion is formed as a support plate. A bearing assembly includes the bearing support with a bearing seated in each of the respective cylindrical openings.

Abstract: A bearing assembly comprises at least two adjacently-disposed bearings. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A bearing support retains the at least two bearings such that respective rotational axes of the at least two bearings extend in parallel. A spacer has at least two cylindrical openings configured to receive the respective cylindrical outer circumferential surfaces of the bearing outer rings such that a circumferential inner surface of each opening covers at least a portion of a width of the bearing outer ring received therein and surrounds an entire circumference of the bearing outer ring received therein. The bearing support is not fixedly connected to the spacer.

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 bearing assembly comprises at least one bearing element abutting against at least one adjacent part at a contact surface. The bearing assembly can be manufactured by disposing a reactive nano-crystalline layer between the bearing element and the adjacent part in the area of the contact surface and then initiating an exothermic reaction in the reactive nano-crystalline layer, so that the bearing element bonds to the adjacent part in a materially-connected manner. The exothermic reaction involves at least partially heating the surface area of the bearing element and/or of the adjacent part that is located in the area of the contact surface.

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 bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A support part includes a recess configured to hold the at least two bearings. At least one junction portion is defined in the support part adjacent portions of the cylindrical circumferential surfaces of the bearings that are not filled by the bearings when the bearings are inserted into the support part. The support part is connected with a cover part that axially abuts on the bearings. The cover part includes at least one support element, which extends into the junction portion between the bearings in the assembled state of the bearing support and at least partially fills the junction portion.

Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. The bearing support comprises at least first and second portions that are connected together. The first portion is formed as a component that has cylindrical openings configured to receive or seat the respective bearing outer rings and to surround the entire circumference of the respective bearing outer ring. The second portion is formed as a support plate. A bearing assembly includes the bearing support with a bearing seated in each of the respective cylindrical openings.

Abstract: A bearing assembly comprises at least two adjacently-disposed bearings. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A bearing support retains the at least two bearings such that respective rotational axes of the at least two bearings extend in parallel. A spacer has at least two cylindrical openings configured to receive the respective cylindrical outer circumferential surfaces of the bearing outer rings such that a circumferential inner surface of each opening covers at least a portion of a width of the bearing outer ring received therein and surrounds an entire circumference of the bearing outer ring received therein. The bearing support is not fixedly connected to the spacer.

Abstract: A roller bearing cage includes the following features: The cage comprises an annular circumferential element, from which bridge elements branch off, roller bodies of the roller bearing being disposable between the bridge elements, the circumferential element comprises a plurality of uniform section elements, and the initially-loose section elements and bridge elements are connected with each other to form the cage.

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.