| 摘要 |
A rotor for a rotation sensor may be mounted on a bearing that supports a wheel on an automotive vehicle so that it can detect the number of revolutions for the wheel. The rotor for a rotation sensor 1 includes a reinforcing ring 2 formed like an L-shape in cross section, including a cylindrical part 3 adapted to be fitted on a peripheral surface of the rotating part of the bearing (inner race or outer race) and a flanged part 4 bent at an end edge of the cylindrical part 3, from which it extends in the radial direction. A multi-pole magnet 10 is attached to the axial outer lateral side of the flanged part 4, and a non-magnetic covering 6 encloses the axial outer lateral side of the multi-pole magnet 10 and has a peripheral edge on its one end secured to the reinforcing ring 2.
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