| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing with a sensor for a wheel to detect load with high accuracy/high reliability. SOLUTION: This bearing 10 with a sensor for a wheel is equipped with an external member 1 with a double-row rolling face 4 formed on an inner circumference thereof, an internal member 2 with a rolling face 5 confronting the rolling face 4 of the external member 1, and a double-row rolling element 3 put between the two rolling faces 4 and 5. A sensor 16 is provided on at least one of the external and internal members 1 and 2 of this bearing, the sensor 16 comprising an exciting coil 20 for magnetizing an object to be measured and a measuring coil 23 for measuring a magnetization signal coming up from the magnetized object. The sensor 16 takes at least one of the external and internal members 1 and 2 as an object to be measured and detects Barkhausen noise of the object as the magnetization signal. COPYRIGHT: (C)2007,JPO&INPIT
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