Abstract: A vehicle wheel bearing apparatus which reduces the weight, size and number of parts and also prevents ingress of rain water or dusts and leakage of differential gear oil has an axle housing supported under a body of a vehicle. A hollow drive shaft is inserted into the axle housing. A wheel bearing is arranged between the drive shaft and an opening of the axle housing and is structured as a unit including a wheel hub and a double row rolling bearing. The wheel bearing includes an inner member with a wheel hub integrally formed with a wheel mounting flange on one end and an axially extending cylindrical portion. At least one inner ring is press-fit onto the cylindrical portion of the wheel hub. The inner ring is formed with at least one of the inner raceway surfaces on its outer circumferential surface. An outer member is arranged around the inner member and formed with double row outer raceway surfaces on its inner circumferential surface opposite to the inner raceway surfaces.

Abstract: A wheel bearing apparatus with an incorporated wheel speed detecting apparatus has an outer member with double row outer raceway surfaces formed on its inner circumferential surface. An inner member includes a wheel hub with an integrally formed wheel mounting flange at one end. A cylindrical portion axially extends from the wheel mounting flange. An inner ring is fit onto the cylindrical portion of the wheel hub. Double row inner raceway surfaces, opposite to the double row outer raceway surfaces, are formed on the outer circumferential surfaces of the wheel hub and inner ring, respectively. Double row rolling elements are arranged between the outer and inner raceway surfaces. An encoder is mounted on the outer circumferential surface of the inner ring. An annular sensor holder is arranged on the end of the outer member opposite to the encoder. A wheel rotation speed detecting sensor is integrally molded with the sensor holder and arranged opposite to the encoder, via a predetermined radial gap.

Abstract: An outer member 10 and an inner member 20 constituting a wheel bearing device are assembled and the brake rotor 40 is fixed to the hub ring 20A of the inner member. In this state, the pad slide surfaces 40a and 40b of the brake rotor 40 are lathed with the reference provided by a wheel pilot end surface 23. Alternatively, the wheel pilot end surface 23 of the hub ring 20A by chucking the knuckle pilot 16 of the outer member 10 with the wheel bearing device put in its assembled state, and the pad slide surfaces 40a and 40b of the brake rotor 40 are lathed with the reference provided by the wheel pilot end surface 23.

Abstract: A bearing assembly is proposed which includes a rotational speed detector including a sensor and a sensor holder made of steel. The sensor is adapted to be snap-fitted in the sensor holder. The sensor holder is subjected to cationic electrocoating to improve its corrosion resistance, thereby preventing the sensor from separating from the sensor holder after long use of the bearing assembly. This improves the reliability of the entire bearing assembly.

Abstract: A vehicle wheel bearing apparatus has an outer member with an integrally formed body mounting flange and double row outer raceway surfaces formed on its inner circumferential surface. An inner member includes wheel hub with an integrally formed wheel mounting flange at one end. One inner raceway surface is formed on the outer circumferential surface of the wheel hub. The inner raceway surface is opposite to one of the double row outer raceway surfaces. A cylindrical portion axially extends from the inner raceway surface through a shoulder. An inner ring is fitted onto the cylindrical portion. One end of the inner ring abuts the shoulder of the wheel hub. The inner ring is formed with the other inner raceway surface on its outer circumferential surface. The other inner raceway surface is opposite to the other outer raceway surface of the double row outer raceway surfaces.

Abstract: A bearing apparatus for a driving wheel of a vehicle has an outer member (2), inner member (5, 6), rolling elements (4), outer joint member (61) and a cover (11, 67). The outer member (2) is formed with double row outer raceway surfaces (2a) on its inner peripheral surface The inner member (5, 6) include a wheel hub (2) with an integrally formed wheel mounting flange (7) at one end and an axially extending cylindrical portion (5b, 13b) of a smaller diameter. At least one inner ring (6) is press fit onto the cylindrical portion (5b, 13b). The inner member (5, 6) is formed with double row inner raceway surfaces (5a, 6a) arranged opposite to the double row outer raceway surfaces (2a). The double row rolling elements (4) are freely rollably contained between the outer and inner raceway surfaces (2a and 5a, 6a).

Abstract: To provide a wheel support bearing assembly designed to avoid an ingress of foreign matter from an area, where a sensor is fitted, into the inside of the bearing assembly. The wheel support bearing assembly includes an outer member (1) adapted to be secured to a vehicle body structure, an inner member (2) adapted to support a vehicle wheel, and circular rows of rolling elements (3) interposed between the outer and inner members (1,2). A sensor cap (13) is provided for closing an inboard end of the outer member (1) and has an insert nut (15) embedded therein. The sensor cap (13) is also provided with a reduced diameter hole (23), in which an elastic sealing member (25) is interposed under interference fit between it and a deep end face of the insert nut (15).

Abstract: A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member (4) with an integrally formed body mounting flange (4b) and double row outer raceway surfaces (4a) formed on the inner circumferential surface of the outer member (4). An inner member (3) includes a wheel hub (1) with an integrally formed wheel mounting flange (7) at one end. A cylindrical portion (1b) axially extends from the wheel mounting flange (7). An inner ring (6) is fitted on the cylindrical portion (1b) of the wheel hub (1). Double row inner raceway surfaces (1a, 6a) are formed on the outer circumferential surfaces of the wheel hub (1) and inner ring (6), respectively opposite to the double row outer raceway surfaces (4a). Double row rolling elements (5) are rotatably arranged between the outer and inner raceway surfaces (4a; 1a, 6a). An encoder (19) is mounted on the outer circumferential surface of the inner ring (6).