Patent ID: 6186667
Filing Date: 2001-02-13
Classification: F16C,G01P

Abstract:
A rolling bearing unit comprising;a rotatable race having an outer diameter, 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 rotatably provided 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, anda metal ring for supporting the encoder onto the rotatable race, and having a cylindrical portion provided on the radially outer side than the encoder to enclose the encoder.