A seal assembly for a truck wheel hub assembly includes an inner annular case having an axial portion disposable about an axle and a radial portion extending radially outwardly from the axial portion. An outer annular case is coupleable with a hub bore and has a radial portion extending radially inwardly from the bore. An annular elastomeric seal member has a base portion disposed on the outer case and at least one flexible axial seal lip with a first end integrally formed with the base portion and a second, free end sealingly engageable with the radial portion of the inner case. A radial projection extends radially inwardly from the outer case radial portion and has an inner radial end located adjacent to and spaced radially outwardly from the inner case axial portion or an outer circumferential surface disposed about the axle so as to form a labyrinth seal gap.

A wheel bearing assembly with an outer race, a first roller bearing, a second roller bearing, a first shield, and a second shield. The outer race may have a first inner surface and a second inner surface. The first roller bearing and the second roller bearing may have a plurality of rollers configured to engage with the first inner surface and with the second inner surface, respectively. The first shield and the second shield may be configured to engage with the first roller bearing and the second roller bearing, respectively, and push the first roller bearing and the second roller bearing against the first inner surface and the second inner surface, respectively. The first shield and the second shield may each have a rubber seal configured to reduce passage of fluid into or out of the first roller bearing and the second roller bearing, respectively.

A seal assembly is for a wheel hub assembly and includes an inner annular case disposable about an axle and having a radial portion extending radially outwardly from the axle. An outer annular case is coupleable with a hub bore and has a radial portion extending radially inwardly from the bore. An annular elastomeric seal member has a base portion disposed on the outer case and at least one flexible axial seal lip with a first end integrally formed with the base portion and a second, free end sealingly engageable with the radial portion of the inner case. The lip extends generally axially and radially outwardly from the first end to the second end such that the lip is biased radially outwardly by centrifugal force during rotation of the hub to reduce sealing pressure of the lip second end on the inner case radial portion.

A sealing device configured to be mounted on a rolling bearing provided for a wheel bearing device, the wheel bearing device including an axle pipe and a rolling bearing being fitted onto an outer circumferential stepped portion formed on an outer circumference of the axle pipe to rotatably support a wheel, the sealing device being mounted between an outer ring and an inner ring. The sealing device includes a slinger member having a first cylindrical portion, a disk portion, and a second cylindrical portion; a core body member having a cylindrical portion and a disk portion; and a seal body made of an elastic material. An inner circumferential face of a seal body cylindrical portion has an inclined portion constituting a labyrinth of which diameter gradually increases toward one side from the other side in the axial direction between the inner circumferential face and the second cylindrical portion.

A wheel hub bearing for motor vehicles including a rotatable hub provided with a flange for the engagement of the hub to a wheel of a vehicle and provided with a radially outer free portion and a bearing unit provided with a radially outer ring for the engagement of the wheel hub bearing to a knuckle of the vehicle and a radially inner rotatable ring angularly connected to the hub. Furthermore, the wheel hub bearing has a device for detecting a vehicle parameter and provided with an encoder and a sensor in communication with the encoder. The encoder is ridgidly coupled to the radially outer free portion of the flange to jointly rotate with the hub.

A sealing device for a bearing unit, the device having a stationary part provided with: a first metal shield, an elastomer coating, co-molded on the first shield, at least one contacting lip, radially internal, belonging to the elastomer coating. The sealing device having a rotatable part provided with a second metal shield on which the contacting lip makes a sliding contact. The second metal shield is provided with a plurality of flow baffles positioned at least on an axially exposed surface of the shield, shaped as recesses realized through the axially exposed surface and distributed along a radially outer peripheral edge of the shield.

A wheel bearing device (1) including: an outer member (2) on the inner periphery of which an outer-side rolling surface (2c/2d) is formed; an inner member (3) on the outer periphery of which an inner-side rolling surface (3c/3d) is formed; and a plurality of rolling bodies (41) interposed between the rolling surfaces (2c/2d/3c/3d) of the outer member (2) and the inner member (3). The wheel bearing device having a spline hole (3b) formed in a through hole (3h) of the inner member (3). The spline hole includes a guide groove (3G) formed on an inner circumferential surface thereof. A guide plate (8G) of a finishing broach (8) passes through the guide groove in the inner periphery of the spline hole (3b).

A wheel hub assembly for motor vehicles, having a rotatable hub, a bearing unit in turn comprising a radially outer ring, a radially inner ring and a plurality of rolling bodies. The axial interface between the wheel hub assembly and a knuckle of a motor vehicle suspension provides at least one piezoelectric spacer configured to detect first mechanical vibrations coming from the components of the wheel hub assembly and to implement corrective action consisting of second mechanical vibrations of almost equal amplitude but with opposite direction and phase, so that the resultant of the first and second mechanical vibrations is close to zero.

An axle assembly for drive wheels of vehicles includes a steering knuckle, an axle housing coupled to an inside of the steering knuckle, a wheel disc that is fixed to the axle housing to be rotatable integrally with the axle housing, and a drive shaft that is coupled to the axle housing to be rotatable integrally with the axle housing. A hub bearing is disposed between the steering knuckle and the axle housing. A forming part is formed at an end of the axle housing in a state in which a bearing inner race of the hub bearing is coupled to an outer circumferential surface of the axle housing, and the bearing inner race is engaged with a side part of the axle housing by the forming part in a state in which the forming part is pressed against a side end of the bearing inner race.

The steering function-equipped hub unit includes: a turning shaft-equipped hub bearing (15) including an inner ring, an outer ring, and rolling elements in double rows interposed between the inner ring and the outer ring, the turning shaft-equipped hub bearing having a turning shaft extending in a vertical direction; a unit support member (3) rotatably supporting the turning shaft-equipped hub bearing (15) about a turning axis of the turning shaft; and a steering actuator (5) configured to rotationally drive the turning shaft-equipped hub bearing (15) about the turning axis (A). The unit support member (3) and the steering actuator (5) include a flange (3a) and an end portion (25Aa), respectively, to be removably fixed to a knuckle (6) which is a chassis frame component of a vehicle.