| 摘要 |
In a rotation detecting device attached to an end face of a hub bearing for an automobile, a sensor body (a resin molded member) having a holder member and a connector member is integrally formed in a single resin molding process. The rotation detecting device shortens the distance between a detection surface of a molded IC and a rotor. The holder member is defined by a recess with a bottom portion and two sidewalls. The molded IC has a detection surface, a back surface opposite to the detection surface, and side surfaces. The molded IC is fixed on the holder member and exposes the detection surface. The back surface of the molded IC is opposed to the bottom portion of the holder member. The side surfaces correspond to portions to be press-fitted, and the sidewalls of the holder member correspond to portions to press-fit.
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