Bearing cap for bearing device for wheel with rotational speed detecting device, and bearing device for wheel with rotational speed detecting device

摘要

Problem to be solved: to provide a bearing cap for a wheel bearing device having a rotational speed detecting device and a wheel bearing device with a rotational speed detecting device capable of efficiently discharging the foreign body intruding into the sensor support portion outside the sensor support portion and ensuring a rigidity of the sensor support portion.A sensor support part 21 is formed in the bottom surface 15C of the cap body 15.In the bearing cap 11 in which the insertion hole 21a of the rotational speed sensor 19 is formed in the sensor support partA portion of the bottom portion 15C of the sensor support portion 21 is formedA concave portion 15d is formed to receive the tip portion of the rotational speed sensorSensor supportAn imaginary line L passing through the axial center G1 of the bottom portion 15C and the axial center G2 of the insertion hole 21a is disposed so as to be interposed therebetween.The first wall 21b and the second wall 21C are formed along the periphery of the recess 15d.On the outer surface of the first wall 21b and the second wall 21CProjections 21d projecting from the bottom portion 15C are provided continuously.Diagram