| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing with a rotation sensor capable of heightening its resolution, and having excellent assembling property. SOLUTION: This bearing with the rotation sensor comprises a rolling bearing comprising a rotation side race, a fixed side race and a rolling body, a part to be detected, and a magnetic detection part 8. The part to be detected comprises a magnetic material or a composite material including the magnetic material, has a plurality of N-poles and S-poles alternately in the circumferential direction, and is mounted on the rotation side race. The magnetic detection part 8 has a magnetic sensor element 20 for generating an output signal corresponding to a magnetic flux density, and is mounted on the fixed side race oppositely to the part to be detected. A magnetism collecting chip 25 comprising a magnetic body is provided on the sensitive surface of the magnetic sensor element 20 in the magnetic detection part 8. COPYRIGHT: (C)2005,JPO&NCIPI
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