Patent ID: 6218827
Filing Date: 2001-04-17
Classification: B60B,F16C,G01P

Abstract:
A roller bearing unit having a rotating speed detector, comprising:an outer race being fixed and including an outer raceway on an inner circumferential surface of the outer race;an inner race being rotatable and including an inner raceway on an outer circumferential surface of the inner race;a plurality of rolling elements arranged to be freely rolled between the outer raceway and the inner raceway;a cover made of synthetic resin and fixed to the outer race only by press fitting and having an engaging portion press fitted with interference to an opening end on the inner surface of the outer race, and an engaging groove on the engaging portion;a detector including a detected element fixed to the inner race and a sensor fixed to the cover for detecting a rotating speed in cooperation with the detected element; anda seal ring fitted into the engaging groove of the cover to seal between the cover and the inner surface of the outer race.