Sensor holder and bearing device for vehicle wheel

A sensor holder attached to an end portion, in an axial direction, of an outer member that is located on an outer diameter side of an inner member supporting an encoder at an end portion in the axial direction, and rotatably supports the inner member via a double row of rolling elements, the sensor holder comprising:

• a cap part fitted to the outer member so as to close an opening on one end side in the axial direction of the outer member;
• a sensor support part that protrudes from the cap part toward one side in the axial direction at a location on the cap part facing the encoder, and that supports a sensor that detects displacement of the encoder;
• and
• a nut holding part that protrudes from the cap part toward one side in the axial direction and holds a nut for fixing the sensor to the cap part,
• wherein the sensor support part and the nut holding part are formed to be separated from each other,
• an axial end surface of the nut held by the nut holding part protrudes toward one side in the axial direction further than an axial end surface of the sensor support part, and
• wherein a step dimension between the axial end surface of the nut and the axial end surface of the sensor support part is 0.2 mm or more, and a depth dimension of the sensor support part in the axial direction is 5 mm or more.