Patent ID: 8439363

Claim:
A dynamic radial shaft seal assembly, comprising: an inner wear sleeve having a cylindrical inner wall including a bore sized for receipt about a shaft and an outer running surface, said inner wear sleeve having a flange extending radially outwardly from said inner wall; an outer case having cylindrical outer wall configured for receipt in a housing and a rim extending radially inwardly from said outer wall; an elastomeric body attached to said rim, said elastomeric body including a main seal lip that engages said outer running surface and a plurality of thrust pads extending axially from said rim toward said flange, said thrust pads having peaks forming thrust surfaces along a first diameter, said peaks of said thrust pads being spaced circumferentially from one another by valleys, said elastomeric body further including a first dust exclusion lip extending axially from the leg and bridging the valleys between said peaks of said thrust pads, said first dust exclusion lip having a free end extending along said first diameter.