SEAL ASSEMBLY WITH EXPANDABLE SEALING MEMBER

摘要

A seal assembly includes an annular sealing lip extending about a central axis and sealingly engageable with a shaft. An annular elastomeric base is disposed generally coaxially about and connected with the lip and has two opposing axial sides and an outer circumferential surface contactable with a housing inner circumferential surface. An expander device includes first and second clamp members, each disposed against a separate base inner portion axial side, and one or more couplers having an end coupled with a portion of the first clamp member and another end coupled with a portion of the second clamp member. Each coupler is configured to displace each connected clamp member portion generally axially toward the other clamp member portion to compress an inner portion of the base to displace an outer portion of the base generally radially outwardly such that the base outer surface sealingly engages the housing inner surface.