A wheel bearing device equipped with: an inner member including an outer ring (2), a hub ring (3), and at least one inner ring (4) press-fitted into the hub ring (3); multiple rows of rolling bodies (5a/5b); a magnetic encoder (9) provided on an end portion of the inner ring; a cover (10) fitted onto the outer ring (2); and a magnetic sensor (11) provided on the cover. The cover includes a large-diameter cylindrical section (10a) fitted onto the outer ring, a step section (10b) protruding toward the inside in the radial direction and contacting an end surface of the outer ring, and a small-diameter cylindrical section (10c) extending in the axial direction from the step section. A portion of the ground-surface side of the small-diameter cylindrical section forms a protruding circumferential surface (S), and a drain hole (10e) is formed in the protruding circumferential surface (S).

A motor vehicle wheel bearing assembly includes a hub configured to be supported by at least one rolling-element bearing and to provide a seat for a wheel. The hub includes a first hollow-cone-shaped element manufactured from light metal and having a first axial end section having a first diameter and a second axial end section having a second, larger, diameter and at least one bearing raceway or raceway support at the first axial end section. The hub also includes a second element extending radially from an end of the first hollow-cone-shaped element, the second element having a radially inner section and a radially outer section. The second axial end section of the first element is connected to the radial outer section of the second element, for example, at a joint.

A preload inspection method with which a preload value can be calculated more accurately. The preload inspection method for a wheel bearing device provided with an outer member having an outside raceway surface, an inner member having an inside raceway surface, and rolling bodies, is provided with: a power calculation step in which the outer member or the inner member is rotated in a relative manner and the power is calculated; a preload value calculation step in which a preload value is calculated on the basis of the power calculated in the power calculation step; and a pass/fail determination step is made on the basis of whether the preload value calculated in the preload value calculation step is within a permissible range.

A wheel hub assembly includes a wheel hub unit having a radially outer ring with a first metal surface, a radially inner ring with a third metal surface, and a plurality of rolling bodies interposed between the inner ring and the outer ring. The hub assembly includes a suspension pillar with a second metal surface butt coupled to the first metal surface of the radially outer ring, and a constant velocity joint having a fourth metal surface butt coupled to the third metal surface of the radially inner ring. A coating having a plurality of hard particles and made of an organic matrix or an inorganic matrix covers at least one of the first metal surface and the third metal surface.

Provided is a wheel bearing apparatus with a generator that can have a simplified structure to reduce costs and is capable of preventing electrolytic corrosion. The wheel bearing apparatus with a generator includes a wheel bearing and a generator. The generator includes a stator attached to a fixed wheel and a motor rotor attached to a rotating wheel and is of an outer-rotor type in which the stator is located on an outer periphery of the wheel bearing, and the motor rotor is located radially outside of the stator. The wheel bearing apparatus with the generator further includes at least one conducting unit that conducts a current between the fixed wheel and the rotating wheel.

A hybrid connection element, in particular a bearing outer element of a wheel bearing, includes a core part made of steel and a reinforcement part made of plastic. The reinforcement part at least partially encases the core part. The core part includes a hollow cylindrical bearing unit extending in an axial direction and a flange extending in a radial direction. The reinforcement part includes at least one reinforcement rib which transmits force between the bearing unit and the flange of the core part.

There is disclosed a hub bearing assembly having a housing having an internal cylindrical opening; an annular bearing accommodated within the cylindrical opening of the housing; and a cylindrical pin accommodated within the annular bearing, wherein the housing and the cylindrical pin rotate relative to each other.

A hub bearing module for a lightweight suspension upright or knuckle of a vehicle, the hub bearing module including a wheel bearing and a bearing connection interface to the suspension upright or knuckle, the bearing connection interface being arranged coaxial with the rolling bearing and including a first sleeve element and a second sleeve element arranged radially outside the first sleeve element and including a composite, preferably BMC (Bulk Molding Compound) annular body having a radially inner lateral surface mechanically coupled to the first sleeve element and a radially outer lateral surface configured to mechanically and chemically couple with the suspension upright or knuckle.

A lightweight suspension upright or knuckle including: a bearing connection interface having a first sleeve element and a second, radially outer, sleeve element and further including a BMC/LFT/DLFT annular body; at least one attachment interface configured to connect the suspension upright or knuckle to a respective control or support element; and a supporting structural body mechanically connecting the bearing connection interface with the at least one attachment interface. The supporting structural body is shaped as a reticular frame including first blade elements chemically and mechanically interconnected to each other and to the outer lateral surface; each blade element consisting in one or more mats or plies of continuous fibers embedded in a polymer matrix, stacked onto one another and that have been compression molded together and with the annular body. Also, a method for obtaining a lightweight suspension upright or knuckle for a vehicle providing a bearing connection interface.

Wheel bearing flanges and wheel bearings are disclosed. The wheel bearing flange may include a flange connected to an inner ring of a bearing, the flange having a front surface facing away from the inner ring and a rear surface facing towards the inner ring. A plurality of geometric features may extend from the rear surface in an axial direction and define recessed regions of the flange therebetween. The geometric features may be formed in a pattern and the geometric features may include ribs.