A hub motor assembly includes a hub axle, a hub shell, a motor unit, a cycloidal speed reducer, and a one-way clutch unit. When an output shaft of the motor unit rotates in a first direction about an axial line, a cycloidal wheel of the cycloidal speed reducer is driven to produce an eccentric cycloidal motion relative to the axial line, to thereby drive rotation of the hub shell in the first direction. When the output shaft rotates in a second direction opposite to the first direction, the hub shell is prevented from rotating with the output shaft.

An apparatus for a vehicle is provided that has an axle with an axis. A spindle sleeve with a spindle sleeve inner surface axis coaxial with the axis of the axle is present, along with a spindle sleeve outer surface axis that is not coaxial with the axis of the axle. The spindle sleeve has an inner surface and an outer surface. A sleeve washer is present along with a bearing that has an inner race, an outer race, and a roller. The inner race has an inner surface and a front surface in which the front surface is located forward of the inner surface in a lateral direction. The inner race has a curved surface that extends from the front surface to the inner surface, and the sleeve washer engages the front surface. The apparatus also includes a retainer that engages the spindle sleeve and the curved surface.

A wheel bearing arrangement for a motor vehicle with a wheel hub and a wheel bearing for the rotatable bearing of the wheel hub at a wheel mount. The wheel bearing has an outer ring and an inner ring, which is rotatable with respect to the outer ring around an axis of rotation and is connected to the wheel hub. A wheel flange extends from the wheel hub and, as viewed in the axial direction, has a brake disk mount, which is open in the direction facing away from the outer ring and which, as viewed in longitudinal section with respect to the axis of rotation, is formed by a recess of the wheel flange, and has a support surface for a brake disk.

Flanged inner ring of a rolling bearing forming part of a wheel hub unit of motor vehicles, having at its axially inner end a rolling edge configured to preload axially a radially inner ring after being plastically deformed by orbital forming. The rolling edge is provided with a conical surface of an axially inner portion of the rolling edge. A first parameter is defined as being the ratio between the conicity of the conical surface expressed in degrees and the thickness of the rolling edge expressed in millimeters and assumes values ranging between 0.03 mm.sup.−1 and 2 mm.sup.−1.

A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring is disposed about the inner ring and has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and is rotatable about an axis and the other ring is fixedly coupled with a vehicle. An annular displacement limiter extends radially outwardly from the inner ring and has a radial stop surface spaced axially from the inboard end of the outer ring. The stop surface engages with the outer ring end when one ring displaces axially relative to the other ring. Preferably, the limiter is integrally formed with an annular insert providing a bearing inner race, but may be separately formed and disposed about the insert or the inner ring outer surface.

An improved axle may comprise three design features that, used individually or in combination, may drastically improve axle performance and decrease the likelihood of axle damage and/or deformation resulting from vehicle weight, jounce load, combined cornering load, and/or curb strike load. These three features are: dual opposed tapered roller bearings, increased shaft diameter at the bearings, and reinforced flange back face.

A system for use in providing a load on a bearing mounted to a shaft includes a preload apparatus having a first extension and a second extension engageable with an inner race of the bearing and configured to provide a compressive load to the bearing. The first extension has a first projection and the second extension has a second projection. A stop ring is configured to limit a radially inward movement of the first extension and the second extension toward each other to position the first projection and the second projection relative to the bearing.

A wheel hub permits mounting a vehicle wheel on a wheel axle. The wheel hub has a hub body and a roller bearing unit for mounting the hub body on an axle journal of the wheel axle, wherein the roller bearing unit has annular roller bearings for engaging the axle journal, each comprising an outer ring, an inner ring and a plurality of rolling elements. The wheel hub also includes at least one measurement ring arranged to be axially adjacent to at least one of the inner rings for engaging the axle journal, wherein the measurement ring includes at least one measurement setup for measuring strain and/or compression.

A wheel end assembly includes a hub connectable with a wheel and having a bore for receiving a shaft. An inboard bearing within the bore includes an outer ring coupled with hub, an inner ring within the outer ring and rolling elements. A seal assembly is coupled with the inner ring and retains the inner ring within the outer ring when the end assembly is separate from the shaft. An outboard bearing within the hub bore includes an outer ring coupled with the hub, an inner ring within the outer ring and rolling elements. A nut assembly is disposed adjacent to the outboard bearing and includes a nut threadably engaging the shaft. A retainer retains the nut assembly adjacent to the outboard bearing to limit axial displacement of the outboard inner ring to maintain the inner ring within the outer ring when the wheel end is separate from the shaft.

A unitized wheelend is provided. The unitized wheelend includes a hub having an inboard side bounded by an oil seal and an outboard side bounded by a retainer releasably coupled to the hub. The unitized wheelend assembly includes an inboard bearing assembly, a spacer, an outboard bearing assembly, and a spindle nut assembly.