Wheel hub rolling element bearing assembly with sealing member

摘要

A bearing device for wheel includes: a rolling bearing (20) that includes an inner ring (21,23), outer ring (30), rolling elements (40,41) between the inner and outer rings, and an inner sealing member (45); a hub wheel (10) that includes a flange (12) into and a cylindrical shaft (15) to which the rolling bearing is assembled; and an outer sealing member (50) mounted on an end of an outer periphery of the outer ring (30) so as to close a clearance defined between the outer ring (30) and the flange (12). The outer sealing member (50) includes a main cylindrical body (51) having a fixed base part (52) fixed to the outer ring (30), and an elastic sealing lip (60) that is integrally formed along the main cylindrical body (51) and is elastically press-contacted to the flange (12), and the main cylindrical body (51) is formed so as to have a tapered cylinder shape of which the diameter is gradually changed toward the tip from the fixed base part (52).