| 摘要 |
PROBLEM TO BE SOLVED: To provide a hub unit whose manufacturing cost is prevented from increasing without lowering the detection precision of a rotation detector in the hub unit mounted to a vehicle body to rotatably support a wheel, adapted to the enlargement of a tread. SOLUTION: The hub unit 1 is provided with an outer ring 2, a hub wheel 3, an inner ring 4, a vehicle inner side rolling element train 51, and a vehicle outer side rolling element train 52. A detected portion 11 of an inner ring end 41 and a detection portion 12 of a cap 9 are axially oppositely disposed in a rotation sensor 10. A pitch circle of the vehicle inner side rolling element train 51 is positioned at the vehicle inner side nearer from a vehicle inner side main surface 23a of an outer flange 23. COPYRIGHT: (C)2008,JPO&INPIT
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