Sensor-equipped bearing for wheel

A sensor equipped wheel support bearing assembly for rotatably supporting a vehicle wheel relative to a vehicle body structure, which comprises:

• an outer member having an inner periphery formed with a plurality of rolling surfaces,
• an inner member having an outer periphery formed with rolling surfaces held in face-to-face relation with the respective rolling surfaces, and
• a plurality of rows of rolling elements interposed between the opposed rolling surfaces;
• and
• at least one sensor unit including a strain generating member, having two or more contact fixing segments adapted to be held in contact with and fixed to one of the outer and inner members that serves as a stationary member, and a sensor mounted on the strain generating member for detecting a strain occurred in the strain generating member,
• wherein the strain generating member is disposed at a location departing from a line that passes through a center of the rolling elements and extends in a direction defined by a rolling element contact angle and,
• wherein the strain generating member in the sensor unit is in the form of a thin plate of a generally strip shape when viewed from top, and has a cutout portion defined in a side edge portion thereof.