A bearing including a base, a plurality of slots, and a plurality of rollers disposed in the plurality of slots. At least one of the plurality of slots may be configured to retain a first roller and a second roller of the plurality of rollers at different skewing angles. Methods for manufacturing bearings are also described. In an embodiment, a method of manufacturing a bearing includes providing a first plurality of base layers. The first plurality of base layers may include portions of a plurality of slots and portions of a plurality of cooling channels. The method may include inserting a roller in at least one of the portions of the plurality of slots and providing a second plurality of base layers.

The present disclosure regards a spherical roller bearing having, an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row disposed between the at least one inner raceway and the respective first and second outer raceway, the roller elements further providing axially inner ends. Moreover, the bearing includes a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage including a plurality of cage pockets, wherein one of the roller elements is disposed within each cage pocket, and wherein the cage is roller centered by the axially inner ends.

The present disclosure regards a spherical roller bearing having, an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row disposed between the at least one inner raceway and the respective first and second outer raceway, the roller elements further providing axially inner ends. Moreover, the bearing includes a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage including a plurality of cage pockets, wherein one of the roller elements is disposed within each cage pocket, and wherein the cage is roller centered by the axially inner ends.

A cage for a thrust bearing, comprising: a first plurality of circumferentially aligned pockets arranged to accept a first plurality of roller elements; a second plurality of circumferentially aligned pockets located radially inward of the first plurality of pockets and arranged to accept a second plurality of roller elements; a plurality of pairs of circumferentially extending protrusions; and a plurality of openings. Each opening in the plurality of openings: passes through material forming the cage and wholly surrounded by the material forming the cage; and is located between a respective pair of protrusions in a first circumferential direction.

A cage for a thrust bearing, comprising: a first plurality of circumferentially aligned pockets arranged to accept a first plurality of roller elements; a second plurality of circumferentially aligned pockets located radially inward of the first plurality of pockets and arranged to accept a second plurality of roller elements; a plurality of pairs of circumferentially extending protrusions; and a plurality of openings. Each opening in the plurality of openings: passes through material forming the cage and wholly surrounded by the material forming the cage; and is located between a respective pair of protrusions in a first circumferential direction.

A three-section synchronous concealed slide rail includes a mobile rail, a middle rail, a fixed rail and a damping mechanism. An upper rack and an upper roller cage with an roller are installed between the mobile rail and the middle rail, a split-type lower roller cage with a roller is installed between the middle rail and the fixed rail, a surface of which is provided with a rack. A gear assembly is meshed between the upper rack and the lower roller cage and used for controlling synchronous or staggered operation of the mobile rail and middle rail according to the intensity of acting force, and the damping mechanism is installed on the fixed rail.

A spherical roller bearing having an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row in-between the at least one inner raceway and the respective first and second outer raceway is provided. The bearing provides a cage for guiding the roller elements in the first and second roller row, the cage includes a plurality of cage pockets, wherein in each cage pocket one of the roller elements is disposed. The bearing further presents a specific pitch circle diameter (PCD), and the cage is essentially in-pitch roller centered in relation to the pitch circle diameter (PCD) when there is an axial force acting on the bearing. In addition, the present invention regards a bearing arrangement and a wind turbine bearing arrangement.

A spherical roller bearing having an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row in-between the at least one inner raceway and the respective first and second outer raceway is provided. The bearing provides a cage for guiding the roller elements in the first and second roller row, the cage includes a plurality of cage pockets, wherein in each cage pocket one of the roller elements is disposed. The bearing further presents a specific pitch circle diameter (PCD), and the cage is essentially in-pitch roller centered in relation to the pitch circle diameter (PCD) when there is an axial force acting on the bearing. In addition, the present invention regards a bearing arrangement and a wind turbine bearing arrangement.

A clamping body freewheel unit and a drive device for motor-assisted driving of an electric bicycle having a clamping body freewheel unit. The clamping body freewheel unit includes a plurality of clamping bodies by which force transmission between an inner shaft and an outer shaft, coupled together via the clamping body freewheel unit, is allowed only in one of two opposite directions of rotation, a cage by which the plurality of clamping bodies of the clamping body freewheel unit are kept together at a defined spacing in a circumferential direction, and a plurality of rolling elements by which the inner and outer shafts are mounted rotatable relative to one another when the inner and outer shafts are coupled together via the clamping body freewheel unit, wherein at least some of the plurality of rolling elements and the clamping bodies are held jointly on the cage.

The present invention relates to a joint assembly for a driveshaft comprising, a yoke stub (1) with multiple channels (3) in the direction of extension; a tube sleeve (2) is having a recess (4) aligned corresponding channel (3) and telescopically engaged with a yoke stub (1). The driveshaft further comprises multiple rollers (14) spaced apart from each other in such a way that providing axial movement between the channel (3) and the corresponding recess (4) to transmit torque and a cage (12) extending between the rollers (14) to secure them together.