| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for a wheel, the bearing device being configured so that rusting is prevented by improving the sealing properties between an outer member and a knuckle, the resistance of a seal to muddy water is improved, and the sealing performance of the seal can be maintained for a long period of time. <P>SOLUTION: The seal 9 comprises: a slinger 11 having a cylindrical section 11a which is press-fitted into an inner ring 3 and an upstanding plate section 11b which extends outward in the radial direction from the cylindrical section 11a; and a seal plate 12 comprising a core metal 13 which is press-fitted into an outer member 10 and a seal member 14 which has a pair of side lips 14a, 14b and a grease lip 14c, the pair of side lips 14a, 14b being joined to the core metal 13, the pair of side lips 14a, 14b extending outward in the radial direction in a tilting manner and in sliding contact with the upstanding plate section 11b, the grease lip 14c extending, on the inner diameter side of the side lips 14a, 14b, to the inner side of a bearing in a tilting manner. The seal member 14 wraps around the outer surface of an end of the core metal 13 and extends outward from the end in the radial direction to form an outer peripheral lip 17 having a substantially L-shaped cross-section. The outer peripheral lip 17 is disposed so as to be fitted in the gap between the outer member 10 and a flange section 18 of a knuckle K. <P>COPYRIGHT: (C)2013,JPO&INPIT |
