SENSOR-EQUIPPED BEARING FOR WHEEL

摘要

This wheel support bearing assembly includes an outer member (1), an inner member (2), and a plurality of rows of rolling elements (5) between opposed rolling surfaces (3) and (4) in both members. At least one sensor unit (19) is provided on the outer diametric surface of a stationary member selected from the outer member (1) and the inner member (2). The sensor unit (19) is made up of a strain generating member (20) having two or more contact fixing segments (20a) adapted to be fixed to an outer diametric surface of the stationary member in contact therewith and a sensor (21) fitted to the strain generating member (20) for detecting a strain induced in this strain generating member (20). A groove (25) is provided in the outer diametric surface of the stationary member at a location between the neighboring two contact fixing segments (20a) of the sensor unit (19).