| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil seal capable of preventing a lip from being reversed with a simple structure.SOLUTION: Plural reinforcing protrusions 40 that extend in an axial direction and has atmosphere side ends that do not contact a rotation shaft arranged inside a base 39a when a waist part 39 of a seal lip 32 is elastically deformed, are integrally formed at intervals in a circumferential direction, in a non-contact region 38 in which the seal lip 32 on an inner face positioned nearer an atmosphere side AS than a contact region 37 in which a lip tip 35a of the seal lip 32 contacts a rotation shaft S. |
