摘要 |
A rotation detecting sensor (A) is fixed to a sensor fixing member (7), through which it is fitted to a wheel support bearing assembly for detecting the rotation of a rotatable ring of the wheel support bearing assembly. A sensor unit (B) is made up of a sensor element (1) of a magnetic type for detecting an annular to-be-detected element of a rotatable ring, a cable (10) for feeding an output signal of the sensor element (1) to an outside, and a substrate (11) having an electroconductive segment (3) for electrically connecting an electrode (2) of the sensor element (1) with a core line (4) of the cable (10). This sensor unit (B) is fixed to the sensor fixing member (7) by means of the substrate (11). A molding portion (8) is provided around the sensor unit (B) and molded with a thermoplastic elastomer or a rubber material.
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