| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device of a bearing for a wheel capable of suppressing adsorption of a side lip of a pack seal by a slinger, preventing abnormal wear of the side lip and increase of rotating torque, and elongating a life.SOLUTION: A sealing device 7 is composed of a seal plate 10 and a slinger 11, a seal member 13 includes: side lips 13b, 13c slidably kept into contact with a standing plate portion 11b in a state of being inclined radially outward; and a grease lip 13d slidably kept into contact with a cylindrical portion 11a while inclined radially inward, and grease 15 is applied to slide contact portions of the lips 13d, 13b, 13c. An annular tongue piece 17 projecting to a bearing inner side, is integrally formed on a tip portion of a grease lip 13d, an annular bent portion 16 extending radially outward, is formed on an end portion of the cylindrical portion 11a, the annular bent portion and the tongue piece 17 are opposed through a slight clearance gap to constitute a labyrinth seal 18, and an annular holding portion 19 for storing the grease 15 is formed. |
