Sensor-equipped bearing for wheel

A sensor equipped wheel support bearing assembly to rotatably support a vehicle wheel relative to a vehicle body structure, comprising:

• an outer member having an inner periphery formed with a plurality of rows of raceway surfaces, an inner member having raceway surfaces formed therein in face-to-face relation with the raceway surfaces in the outer member, and a plurality of rows of rolling elements interposed between those raceway surfaces, respectively;
• and
• a sensor unit comprising a separate sensor mounting member and a strain sensor or a displacement sensor fitted to the sensor mounting member, or a mounting member made of a magnetostrictive material and a detecting coil fitted to the mounting member, the sensor unit being fitted to a stationary member, which is one of the outer member and the inner member;
• and
• wherein the sensor mounting member or the mounting member made of the magnetostrictive material includes at least two contact fixing portion relative to the stationary member and the strain sensor, the displacement sensor or the detecting coil is arranged at least one location between the contact fixing portions.