ROTATION SPEED DETECTING APPARATUS

摘要

A rotation speed detecting apparatus, including: an annular fixing member to be fixed to a support member configured to rotatably support a rotating object to be detected; a case mounted to the fixing member; a detecting portion abutting against an abutment portion provided in the case so as to be positioned with respect to the case for detecting a rotation speed of the rotating object to be detected; and a resin mold portion formed by resin molding and configured to fix the detecting portion to the case in a state in which the detecting portion abuts against the abutment portion of the case.