| 摘要 |
<P>PROBLEM TO BE SOLVED: To certainly prevent leakage of lubricant even if a sliding part of a sealant is abraded to form a clearance. <P>SOLUTION: In this vehicular hub unit bearing transmitting driving force and steering force, the seal member 12a of the vehicular hub unit bearing is composed of a core 14, a slinger 15, and the sealant 16. The sealant 16 is made of elastic materials such as elastomer like rubber, and has three outer, intermediate and inner seal lips 21, 22, 23, and the base end part of the sealant is coupled and fixed to the core 14. After capsules encapsulating 30 mass% or more oil repellent agent based on total weight of the capsules are formed, the capsules of not less than 2 mass% nor more than 50 mass% based on the total weight of the sealant are mixed into the sealant 16. <P>COPYRIGHT: (C)2008,JPO&INPIT |
