| 摘要 |
A rolling bearing unit comprising a rotatable race having an inner peripheral surface formed with an outer ring raceway and an outer peripheral surface formed with a rotating flange, a stationary race having an outer peripheral surface formed with an inner ring raceway, a plurality of rolling members between the outer ring raceway and the inner ring raceway, an annular encoder of multi-pole magnet supported in a concentric relation with the rotatable race to have characteristics alternately changed with a uniform interval in the circumferential direction and having an outer diameter larger than the outer diameter of the rotatable race, and a metal ring for supporting the encoder onto the rotatable race and having a cylindrical portion provided to enclose the encoder.
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