| 摘要 |
PROBLEM TO BE SOLVED: To prevent early wear and breakage due to the contact of a bellows part with a hook part by providing a protrusion part integrally molded with an elastic body provided with the bellows part between the bellows part and the hook part in such a way that it protrudes inward in the radial direction more than the hook part. SOLUTION: An annular hook part 5d engaged with an inner peripheral side of a first annular part 4a of an outer ring 4 through a rubber of a first covered part 6d of an elastic body 6 is integrally molded in an inner peripheral end part of a flange part 5b of an outer cylinder 5. A protrusion part 6h is provided on a first bellows part 6b side of the hook part 5d, and the protrusion part 6h is integrally molded inward in the radial direction on an inner peripheral face of the first covered part 6d of the elastic body 6 and protrudes inward in the radial direction more than the hook part 5d. When an inner cylinder 2 and the outer cylinder 5 are relatively displaced and the first bellows part 6b is elastically deformed, the first bellows part 6b comes in contact with not the hook part 5d of the outer cylinder 5 but the protrusion part 6h which is integrally molded with the elastic body 6 and is made of rubberlike elastic material so as to suppress early wear and breakage of the first bellows part 6b. |
