| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device for a wheel with a rotating speed detecting device capable of securing detecting accuracy by preventing deformation of a sensor cap and defective fixing of a rotating speed sensor, and reducing costs by simplifying working manhours.SOLUTION: An inner cap 15 is fitted to an outer side of a sensor cap 16, the inner cap 15 is formed by press working of austenitic stainless steel plate, and a rotating speed sensor 21 is kept into contact with or close to the inner cap so as to be opposed to a magnetic encoder 14 through the inner cap 15. A fixing nut 23 includes a cylindrical portion 23b provided with a female screw 23a on its inner periphery, and fitted and inserted to a hole 22, and a flange portion 23c disposed on an end outer periphery of the cylindrical portion 23b. The fixing nut 23 is fitted and inserted to the hole 22 until the flange portion 23c is closely kept into contact with an inner-side side face of a bottom portion 16c of the sensor cap 16, and the flange portion 23c is integrally joined to the bottom portion 16c by welding or an adhesive agent. |
