Patent ID: 7692422
Filing Date: 2010-04-06
Classification: F16C,G01D,G01P

Abstract:
1. A wheel support bearing assembly with a rotation sensor, comprising: an outer member inserted in a knuckle forming a part of a suspension system and having an inner periphery formed with double rows of outer raceway surfaces; an inner member made up of a hub axle having one end formed integrally with a wheel mounting flange and having an outer periphery formed with a reduced diameter stepped portion extending axially from the wheel mounting flange, and an inner race press-fitted onto the reduced diameter stepped portion of the hub axle, said inner member having an outer periphery formed with double rows of inner raceway surfaces opposed respectively to the double rows of the outer raceway surfaces of the outer member; double rows of rolling elements accommodated rotatably between the inner member and the outer member; a cover closing an opening of one end of the outer member and including a sensor connector, formed to represent a cap-like shape and made of a synthetic resin, and a sensor cap made of a metallic material; a pulsar ring mounted on the inner race; and a rotation sensor opposed to the pulsar ring and embedded in the sensor connector, wherein the cover is formed from a steel plate, having a rust resistance, by means of a press-work to represent the cap-like shape and extends over an outer surface of the sensor connector so as to cover the sensor connector, and wherein the cover has a cylindrical portion mounted in an inner peripheral surface of one end of the outer member, which end forms a pilot portion for the knuckle, the cylindrical portion of the cover having an outer periphery provided with an annular elastic member held in contact with an inner peripheral surface of the knuckle.