Patent ID: 7819026

Claim:
A sensor-incorporated wheel support bearing assembly to rotatably support a wheel relative to an automotive body structure, comprises: an outer member having an inner peripheral surface formed with a plurality of raceways; an inner member having an outer peripheral surface formed with a plurality of raceways in face-to-face relation with the raceways in the outer member; and a plurality of rows of rolling elements interposed between the raceways in the outer member and the raceways in the inner member, respectively, wherein one of the outer member and the inner member, which serves as a stationary member, is fitted with a sensor mounting member on a peripheral surface or an end face thereof, the sensor mounting member being provided with a strain sensor, the sensor mounting member is further provided with a status detecting sensor to detecting different status other than a strain, the sensor mounting member is a ring member, and a plurality of the strain sensors are affixed to the ring member to measure a strain on the ring member, and the ring member includes at an axially intermediate portion thereof a first non-contact ring portion not in contact with the stationary member, at one axial end thereof a contact ring portion in contact with the stationary member, and at the other axial end thereof a second non-contact ring portion having a wall thickness greater than that of the first non-contacting portion, and the strain sensor is fitted to the first non-contacting portion to measure an axial strain on the ring member.