A vent for a hub cap may include a screen and fluid channels for release of pressurized fluid in a hub cap.

A wheel bearing includes a first seal member disposed between an outer ring and a first outer peripheral surface of a first cylindrical portion of an inner ring and configured to seal between the outer ring and the inner ring; and a second seal member press-fitted to a second cylindrical portion of the inner ring. The second seal member includes a slinger comprising an outer axial end portion spaced apart from the first seal member and a first end surface of the inner ring; a first seal lip coupled to the outer axial end portion of the slinger and comprising a first seal portion in contact with a portion of the first seal member and a second seal portion in contact with a portion of the first cylindrical portion; and a second seal lip coupled to the slinger so as to be spaced apart from the first seal lip.

An in-wheel drive device includes: a wheel bearing including a hub; and a speed reducer at least partially disposed in an internal space of the wheel bearing. The speed reducer includes: planet gears; a ring gear configured to engage the planet gears; and a carrier coupled to the planet gears and configured to transmit, to an outside of the in-wheel drive device, power generated by a revolution of the plurality of planet gears. A first sealing part is disposed in a region in which the carrier and the wheel bearing face each other.

A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction, the recess being recessed toward a second side in the axial direction; an outer ring member disposed on the outer periphery side of the inner ring member; a rolling body disposed between the inner ring member and the outer ring member and rotatably supporting the inner ring member with respect to the outer ring member; a transmitter capable of transmitting at least one of electric power or a signal, at least a part of the transmitter being accommodated inside the recess of the inner ring member; and a covering member that is supported by the first side of the outer ring member in the axial direction, covers the first side of the inner ring member in the axial direction, and fixes the transmitter.

The vehicle power device includes: a wheel bearing; and an electric motor including a stator and a rotor. The vehicle power device includes a rotor casing that is a cover member covering the electric motor and a part of the wheel bearing, the part being located on an inboard side with respect to the hub flange, such that a separated space is defined inside the cover member. A seal member configured to prevent entry of moisture from a press-fitting part where a hub bolt is press-fitted into a bolt hole provided in the hub flange is disposed near the press-fitting part. The hub flange is formed with an annular groove coaxial with the hub bolt in an area where a head of the hub bolt comes into contact with an inboard-side surface of the hub flange, and the seal member having a ring shape is disposed in the annular groove.

A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.

The present invention relates to a wheel-bearing device (10), comprising: an outer-ring element (30), a wheel-hub element (20), and a sealing device (40), which seals a gap between the outer-ring element (30) and the wheel-hub element (20), wherein the wheel-hub element (20) comprises an inner axial wheel-hub end face (22) and a cylindrical wheel-hub portion (24), the outer-ring element (30) comprises a radial outer-ring inner face (32), the sealing device (40) comprises a wheel-hub sealing element (50) and an outer-ring sealing element (70), the wheel-hub sealing element (50) comprises a substantially rigid slinger-ring element (51) and an elastomeric wheel-hub sealing structure (60) arranged thereon, the outer-ring sealing element (70) comprises a substantially rigid insertion element (71) and an elastomeric outer-ring sealing structure (80) arranged thereon, the slinger-ring element (51) comprises a cylindrical wheel-hub fastening portion (54) and a radial wheel-hub sealing portion (56), the insertion element (71) comprises a cylindrical outer-ring fastening portion (72) and a radial outer-ring sealing portion (74), the elastomeric outer-ring sealing structure (80) comprises an axial outer-ring sealing lip (81), which extends between the radial outer-ring sealing portion (74) and the radial wheel-hub sealing portion (56) substantially in an axial direction and contacts the radial wheel-hub sealing portion (56), the radial wheel-hub sealing portion (56) is arranged so as to be axially spaced from the inner axial wheel-hub end face (22), and the elastomeric wheel-hub sealing structure (60) comprises an axial wheel-hub sealing lip (62), which extends between the radial wheel-hub sealing portion (56) and the inner axial wheel-hub end face (22) substantially in an axial direction and contacts the inner axial wheel-hub end face (22).

A manufacturing method of a wheel bearing device, the wheel bearing device including an outer ring member, an inner shaft member that includes a shaft portion that has an inside raceway and a flange portion, a plurality of rolling elements, a seal provided at an end portion of the outer ring member on the first axial side and including an axial lip, and a lip contact surface provided on the side of the inner shaft member and contacted by the axial lip, includes: processing the outside raceway with a distance in an axial direction from a first reference position being managed, a first reference position being set on the outer ring member; and providing the seal at a predetermined position, in the axial direction, of the outer ring member with respect to the first reference position.

A hub bearing assembly for the rotatable mounting of a soil cultivating disc (D) on a support shaft (A) of an agricultural machine, the assembly being provided with a hub bearing unit which in turn is provided with a flanged outer ring carrying two integral outer raceways for respective rows of rolling bodies, a flange fixed to the flanged outer ring for mounting a disc (D), and, for each outer raceway, an inner ring axially adjacent to the other inner ring, both of which can be engaged by the support shaft (A); and a sealing device mounted on a side of the hub bearing assembly opposite the side of the flange, composed of a first sealing stage and a second sealing stage arranged sequentially along the support shaft (A) and housed in respective seats formed directly in the flanged outer ring.

Hub bearing assembly for a vehicle wheel, the assembly having an axial tubular appendage capable of being inserted into a central hole of a wheel of the vehicle, and wherein the tubular appendage has a radially outer surface of substantially cylindrical shape; a collar of cylindrical shape being mounted on the tubular appendage so as to cover a second centring section of the radially outer cylindrical surface, and having an insert of metallic material and an inner coating layer which at least partially covers the insert and is formed on the insert by galvanizing.