Patent ID: 6305693
Filing Date: 2001-10-23
Classification: F16J

Abstract:
A precision, load-adjustable rotary shaft seal assembly comprising a stationery seal surface, an annular drive collar adapted to be mounted on a shaft extending through said stationary seal surface, lock means on said collar for axially adjustably coupling said collar to said shaft, a plurality of guide bores in said collar equidistant from and aligned with the axis of said shaft, a drive finger slideably mounted in each said bore, said fingers including first and second end portions extending beyond respective opposite sides of said collar, a containment ring in proximate spaced relation to the side of said collar remote from said seal surface, said first end portions of said fingers being fixed to said containment ring, a pusher ring interposed between said collar and said stationary seal surface said second end portions extending through and fixed to said pusher ring, an annular rotary seal member interposed between said stationary seal surface and said pusher ring, said rotary seal member including a plurality of drive apertures parallel to the axis of said shaft, said second end portions of said fingers each being axially slideably received in a respective said drive aperture, and a coil spring surrounding each said finger said springs being biased between said collar and said pusher ring and urging said pusher ring and said rotary seal toward said stationary surface, said rotary seal being endwisely removable from said fingers.