Wheel hub rolling element bearing assembly with sealing arrangement

摘要

A rolling bearing assembly (1) includes: an outer ring member (2); an inner ring member (4); a hub wheel (6) formed with a flange (5) at one axial end thereof; and a seal member (7) for sealing a space between one axial end of the outer ring member (2) and an inside surface of the flange (5), which axially opposes the one end of the outer ring member (2). The seal member (7) includes: a cylindrical core (10) fitted on the one axial end of the outer ring member (2) and axially extending from the one end toward the flange (5); and an annular lip portion (11) secured to the core (10) and formed from an elastic material as axially extending from the core (10) to the inside surface of the flange (5).