| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing with a rotation detection unit capable of miniaturizing in size and shortening an axial length. SOLUTION: The bearing with a rotation detection unit has a magnetism generating means 2 for having directivity around a rotation center O at an inner ring 21 side of the bearing 20. A rotary sensor 3 which outputs rotation or angle information by sensing the magnetism of the magnetism generating means 2 is mounted at an outer ring 22 side while it is positioned on an axis of the bearing. The magnetism generating means 2 is fixed on a fixing member, for example, a rotary shaft 10 fixed on a bore side of an inner ring 21 of the bearing 20. COPYRIGHT: (C)2006,JPO&NCIPI
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