In a wheel bearing device, an axial end surface of a hub 1 of a wheel bearing 6 and an axial end surface of an outer joint member 20 of a constant velocity universal joint 7 are coupled by a recess-and-protrusion fitting structure (face spline structure X) in a torque transmittable manner. An inner peripheral surface of the hub 1 of the wheel bearing 6 and an outer peripheral surface of the outer joint member 20 of the constant velocity universal joint 7 are fitted to each other.

A bicycle hub with an axle, a shell, a rotor with a rotor body and a freewheel device with, a hub-side toothed disk device coupled to the hub shell, and a rotor-side toothed disk device interacting therewith and coupled to the rotor body, to drivingly couple the rotor to the hub shell in the driving direction and decouple from one another when freewheeling. The toothed disk devices include an end toothing and are biased to an engagement position. A sprocket accommodation is on the rotor body which includes on the hub-side end an inner radial wall to support a hub-side rotor bearing. On an end face at the hub-side end of the rotor, radially between the inner radial wall and an rotor outer wall, a circumferential accommodation accessible from the end face is configured, so the rotor-side toothed disk device is accommodated in a fixed driving manner and axially movable.

A hub for bicycles with a hub axle, a hub shell, a rotor and a freewheel device, wherein the hub shell rotates with a rotor-side hub bearing, and an outer hub bearing. The rotor rotates with a hub-side rotor bearing disposed closer to the hub shell and an outer rotor bearing further from the hub shell. The freewheel device includes hub-side and rotor-side toothed disk devices, each including an end toothing for engagement with one another, and biased to an engagement position (E). The end toothing of the hub-side toothed disk device is axially oriented to the rotor. The rotor-side toothed disk device is accommodated radially within the rotor and by an outer radial toothing, is coupled with an inner radial rotor toothing, to move with the rotor. The inner diameter of the rotor-side toothed disk device is larger than that of the hub-side rotor bearing.

A bicycle hub, including a hub axle, a hub shell, a threaded ring, a rotor, and a freewheel device, wherein the freewheel device comprises a hub-side toothed disk device and an interacting rotor-side toothed disk device, each including an end toothing for engagement with one another, and biased to an engagement position. The threaded ring includes an outer contour with an external thread, and a through hole with an inner contour, wherein the inner contour has a non-round inner contour, which couples, in a rotationally fixed driving manner, with a matching non-round outer coupling contour on the outer periphery of the hub-side toothed disk device. The threaded ring has a depression at the rotor end, so that the external thread on the threaded ring extends toward the rotor axially further than does the inner coupling contour, to widen the external thread of the threaded ring in the rotor direction.

A bicycle hub with a rotor, including a rotor body, extending from an inner end toward an outer end, wherein the rotor body is rotatably supported on the hub axle with a hub-side rotor bearing and an opposite, outer rotor bearing. The rotor includes a rotor-side toothed disk device coupled with the rotor body, to fixedly, drivingly couple the rotor body with a hub shell, and to decouple from a hub shell when freewheeling. The rotor-side toothed disk device includes an end toothing engaging an end toothing coupled with the hub shell. The rotor-side toothed disk device is biased to an engagement position. The rotor body includes a first rotor part and a second rotor part connected with the first rotor part in a drivingly, rotationally fixed manner. One rotor bearing is on one of the rotor parts and the other rotor bearing is on the other rotor part.

A wheel module for a motor vehicle, the wheel module including a wheel carrier, a wheel hub, a wheel bearing separate from the wheel hub that supports the wheel hub on the wheel carrier, and a drive shaft for driving the wheel hub. The wheel hub having end face toothing engaging a mating toothing on the drive shaft. A spacer element is arranged axially between the wheel bearing and the drive shaft wherein the spacer element adjoins the end face toothing and/or the mating toothing radially on the outside.

A hub with disengaging effect of ratchet faces in an idle mode includes: a gear barrel with first and second housing parts is located at the spacing from the driven end of the hub; a ratchet disc fixed in the driven end has a first annular ratchet face corresponding to the gear barrel; a double-sided free toothed disc disposed in the first housing part is in synchronous rotation with the gear barrel, and includes a second annular ratchet face, which is in a single steering engagement drive relationship with the first annular ratchet face; an elastic expansion member is disposed between the ratchet and double-sided free toothed discs, to push off annular ratchet faces in idle mode; a repulsion disc is mounted in the second housing part at the circumferential direction; an axial repulsion member has repulsion parts which are respectively disposed in the double-sided free toothed and repulsion discs.

A wheel hub system is disclosed. The wheel hub system has a hub assembly, a joint component, and a threaded bolt. The hub assembly has a hub having a though-hole, a circumferential groove formed in the through-hole, and a first support surface having a first plurality of teeth. The hub assembly also has a bearing unit positioned on the hub. The joint component is secured to the hub assembly and has a projection positioned in the through-hole and having a threaded bore and a retainer positioned in the circumferential groove. The joint component also has a second support surface having a second plurality of teeth operatively engaging the first plurality of teeth. The retainer positions the hub assembly and the joint component relative to each other during assembly. The threaded bolt is positioned in the threaded bore and secures the hub assembly in the position.

A rotary press device (33) includes a restriction section (36) configured to restrict a motion of a roll (30) around a central axis of a roll (30) against movement of the roll (30) around a central axis of a hub main body (8) during rotary forging. In an example, the restriction section (36) has guide teeth (44) meshed with teeth formed on a processing surface of the roll (30).

A rotary press device (33) includes a restriction section (36) configured to restrict a motion of a roll (30) around a central axis of a roll (30) against movement of the roll (30) around a central axis of a hub main body (8) during rotary forging. In an example, the restriction section (36) has guide teeth (44) meshed with teeth formed on a processing surface of the roll (30).