An axle assembly having an axle housing including a differential assembly having a ring gear and a lubrication directing assembly disposed directly adjacent to the ring gear. The lubrication directing assembly having a first lubrication flow surface, a second lubrication flow surface, and a trough. The axle assembly also includes an axle housing cover surrounding the axle housing. A fluid storage tank is attached to the housing cover, wherein the fluid storage tank includes a fill channel directly attached to the rear housing cover; an expandable air bladder disposed in the fluid storage tank; and a first valve disposed below the air bladder and in contact with the air bladder.

With an arrangement of a bearing component on a chassis component, in particular on a wheel carrier, it is possible for a wheel of a vehicle to be mounted on the chassis component so as to be rotatable about an axis of rotation by the bearing component. The bearing component has at least one first form-fitting element disposed on the bearing component side and the chassis component has at least one first form-fitting element on the chassis component side. In order to prevent relative rotation along an orbital direction between the bearing component and the chassis component, the at least one first form-fitting element disposed on the bearing component side interacts positively with the at least one first form-fitting element disposed on the chassis component side in the assembled state along the orbital direction.

A hub unit that is to be installed on a vehicle is provided with: an outer ring having, on the inner circumferential surface, a first outer raceway surface and a second outer raceway surface that is disposed to the outside of the first outer raceway surface in the vehicle width direction when the hub unit is installed on the vehicle; an inner shaft that is disposed on the inside of the outer ring concentrically with the outer ring and on which a wheel is installed on the outer end in the vehicle width direction; and an inner ring that is press-fitted to the inner shaft on the inner end in the vehicle width direction.

A hub unit that is to be installed on a vehicle is provided with: an outer ring having, on the inner circumferential surface, a first outer raceway surface and a second outer raceway surface that is disposed to the outside of the first outer raceway surface in the vehicle width direction when the hub unit is installed on the vehicle; an inner shaft that is disposed on the inside of the outer ring concentrically with the outer ring and on which a wheel is installed on the outer end in the vehicle width direction; and an inner ring that is press-fitted to the inner shaft on the inner end in the vehicle width direction.

Provided is a method for manufacturing a knuckle that includes a bearing mounting portion on which a hub bearing is mounted, a damper holding portion which holds a damper, and a damper mounting arm portion which couples the bearing mounting portion and the damper holding portion, the method being such that by using one core, the knuckle is integrally casted so as to formed therein a cylindrical opening which is the inner space of the damper holding portion, a hollow opening in which the inner space in a hollow portion of the damper mounting arm portion, the hollow portion extending in a closed cross section from the damper holding portion, is continuous with an opening formed in the damper holding portion, and an arm-portion opening which is surrounded by a front arm portion and a rear arm portion of the damper mounting arm portion, extending from the hollow portion.

Provided is a method for manufacturing a knuckle that includes a bearing mounting portion on which a hub bearing is mounted, a damper holding portion which holds a damper, and a damper mounting arm portion which couples the bearing mounting portion and the damper holding portion, the method being such that by using one core, the knuckle is integrally casted so as to formed therein a cylindrical opening which is the inner space of the damper holding portion, a hollow opening in which the inner space in a hollow portion of the damper mounting arm portion, the hollow portion extending in a closed cross section from the damper holding portion, is continuous with an opening formed in the damper holding portion, and an arm-portion opening which is surrounded by a front arm portion and a rear arm portion of the damper mounting arm portion, extending from the hollow portion.

The vehicle power device includes: a wheel bearing including a stationary ring and a rotary ring; and a motor including a stator and a rotor. The stator and the rotor of the motor generator have a smaller diameter than that of an outer peripheral part of the brake rotor, and an entirety of the motor, excluding a mounting part to the hub flange, is located within an axial range between the hub flange and an outboard-side surface of a chassis frame component. An insulating layer is interposed between the stationary ring and the stator.

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 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).

Disclosed is an assembly to be mounted at an end portion of an axle of a vehicle, the axle including a differential carrier housing containing a differential and drive shafts, each having one end connected to the differential and a second end to connect to a wheel of the vehicle. The assembly includes a cover to be mounted at the end portion of the axle and fastened to a wheel hub, and a stop elastically compressible in the axial direction and fastened to the cover so as to face and contact one end face of a drive shaft. The stop includes a first part having a first cross-section S1 and configured to absorb in compression axial movements of the drive shaft, and a second part having a second cross-section S2 smaller than the first cross-section S1 and configured to provide a substantially point contact with the drive shaft end face.