| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device for a wheel for surely performing management of an air gap between a magnetic encoder and a rotary speed sensor and detecting accurate rotary speed. SOLUTION: A rotary speed device 60 includes the magnetic encoder 61 mounted on an internal member side of rolling bearings 2 of plural rows and a sensor composition part 62 mounted on an external member side of the rolling bearings 2 of the plural rows. The sensor composition part 62 includes: core metals 63 pressed in and fixed on the end of the external member of the rolling bearings 2 of the plural rows; resin parts 64 additionally provided on the core metals 63; and a rotary speed sensor facing the magnetic encoder 61 embedded on the resin parts 64 through the air gap. The bearing device includes a press-in giving part 72 protruded along a circumferential direction to a reverse press-in side rather than the resin part 64 on the core metal 63. COPYRIGHT: (C)2009,JPO&INPIT
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