Patent ID: 8028589

Claim:
A sensor equipped wheel support bearing assembly for rotatably supporting a vehicle wheel relative to a vehicle body structure, comprising: an outer member having an inner periphery formed with a plurality of rolling surfaces; an inner member having rolling surfaces formed therein in face-to-face relation with the rolling surfaces in the outer member; a plurality of rows of rolling elements interposed between those opposed rolling surfaces; and a strain sensor unit including a strain generating member fixed to one of the outer and inner members, that serves as a stationary member, and a plurality of sensor elements arranged on the strain generating member juxtaposed relative to each other in a circumferential direction to measure a strain secured to the strain generating member, wherein the strain generating member includes a first contact fixing segment associated with a flanged face provided in the stationary member, a second contact fixing segment associated with a peripheral surface of the stationary member, and a joint region defined between the first and second contact fixing segments having a bent portion that is bent at an intermediate site thereof and convexed toward the stationary member, and the plurality of sensor elements are disposed so that an equal number of sensor elements are disposed in the vicinity of the bent portion in the joint region as are disposed to one of the contact fixing segments of the strain generating member or to an extension extending from one of the contact fixing segments in a direction counter to the joint region.