| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel bearing with a sensor which prevents initial strain generated when a sensor unit is fixed by bolts, and thus can accurately detect a load acting on the wheel bearing and the grounding surface of a tire. SOLUTION: The wheel bearing is constituted by interposing rolling elements between double-row opposed rolling surfaces of exterior and interior members. One or more sensor units 20 are fixed by the bolts 24 to a fixed-side member out of the exterior and interior members. The sensor unit 20 is composed of a strain generating member 21 having two or more contact fixing parts which are brought into contact with and fixed to the fixed-side member, and of a sensor 22 which is attached to the strain generating member 21 and detects the strain of this member. On the occasion of fixing the sensor unit 20 by the bolts 24, an adhesive 28 for bringing the contact fixing part 21a of the strain generating member 21 into contact with and fixing it to the outer diameter surface of the exterior member 1, for instance, is used for lessening the initial strain produced in the sensor unit 20. COPYRIGHT: (C)2010,JPO&INPIT
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