| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel bearing with a sensor accurately detecting a load on a wheel without being influenced by rolling elements. SOLUTION: The wheel baring has the rolling elements 5 laid between opposed double row rolling surfaces 3, 4 of an outward member 1 and an inward member 2. It comprises a load detecting means 20 provided fixed-side one of the outward member 1 and the inward member 2 for detecting a load on the wheel bearing, a rolling element detecting means 40 for detecting the positions of the rolling elements, and a correcting means 30 for correcting an output signal from the load detecting means 20 in accordance with the positions of the rolling elements detected by the rolling element detecting means 40. Herein, an estimating means 31 is provided for estimating a load on a tire grounding surface or a load on the wheel bearing from the output signal from the load detecting means 20, corrected by the correcting means 30. COPYRIGHT: (C)2009,JPO&INPIT
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