Wheel bearing apparatus incorporated with a wheel speed...

Details Wheel bearing apparatus incorporated with a wheel speed... Wheel bearing apparatus incorporated with a wheel speed...

2007-08-14

2007-08-14

Cygan, Michael (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

11386986

ABSTRACT:
A wheel bearing apparatus has a wheel speed detecting apparatus which can prevent ingress of foreign matter into the wheel speed detecting portion of the wheel bearing apparatus. The wheel bearing apparatus has an encoder (19) mounted on the outer circumferential surface of an inner ring (6). A sensor holder (15) is arranged on the end of the outer member (4) opposite to the encoder (19). The sensor holder (15) includes an annular fitting member (16) and a holding portion (17). The holding portion (17) is formed by synthetic resin molded integrally with the annular fitting member (16). A wheel speed detecting sensor (20) is embedded in the resin and is positioned opposite to the encoder (19), via a predetermined gap between the two. A seal (11) is arranged at the inboard side of the encoder (19). The seal (11) includes a first sealing plate (21) and a second sealing plate (22) fit, respectively, on the sensor holder (15) and the inner ring (6). The tip end (26) of the annular fitting member (16) is enveloped by plastic resin that forms the holding portion (17).

REFERENCES:
patent: 5967669 (1999-10-01), Ouchi
patent: 6127819 (2000-10-01), Ouchi
patent: 6375359 (2002-04-01), Miyazaki
patent: 6894484 (2005-05-01), Takizawa et al.
patent: 2003-254985 (2003-09-01), None

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