Sensor-equipped bearing for wheel

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 an outer periphery formed with rolling surfaces in face-to-face relation with the rolling surfaces in the outer member;
• a plurality of rows of rolling elements interposed between the respective rolling surfaces in the outer and inner members;
• and
• at least one sensor unit including a strain generating member, having two or more contact fixing segments fixed to one of the outer member and the inner member that serves as a stationary member, in contact therewith, and a sensor fitted to the strain generating member for detecting a strain induced in the strain generating member,
• wherein the strain generating member has a cutout portion positioned intermediate between the contact fixing segments and having a corner area of an arcuately sectioned shape.