SENSOR-EQUIPPED SEALING DEVICE, AND ROLLING BEARING DEVICE ADAPTED FOR USE IN VEHICLE AND USING THE SEALING DEVICE

摘要

To provide a rolling-bearing sensor attaching sealing device capable of ensuring a sufficient magnetic force with respect to a sensor and a vehicle rolling bearing using the same.
A vehicle rolling bearing 1 according to the invention includes a sensor attaching sealing device including an annular slinger 10 fixed to an inner shaft 2; a magnetic encoder 11 fixed to the slinger 10 so as to be integrally rotatable; and a sensor part 12 which includes a metal core 14 fixed to an outer ring 3 and provided with a seal member 15 slidably contacting with the slinger 10 and a magnetic sensor 13 detecting a relative rotation between the outer ring 3 and the inner shaft 2 by a variation of a magnetic pole using the magnetic encoder 11. The magnetic encoder 11 is formed by a plastic magnet which contains magnetic powders oriented with a magnetic field in a predetermined direction.