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An improved seal assembly utilizing a cup gasket having a flange portion secured or sandwiched between side surface of a mating ring and an inner surface of a radially extending side portion of an inner sleeve such that a static seal occurs in an axial direction. The seal further including a gap bet

An improved seal assembly utilizing a cup gasket having a flange portion secured or sandwiched between side surface of a mating ring and an inner surface of a radially extending side portion of an inner sleeve such that a static seal occurs in an axial direction. The seal further including a gap between an inner circumferential surface of the mating ring and the outer circumferential surface of the inner sleeve to detect any leakage past the static seal. Such a seal assures a long-term sealed mounting of the mating ring regardless of elastomer compressions set, shrinkage, or thermal contraction.

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A seal assembly for mounting between a shaft and a housing, one of which is rotating with respect to the other, comprising: a seal casing, said seal casing including an outer case and an inner case; an inner sleeve secured to said shaft; a seal ring, said seal ring connected to said seal casing by a

A seal assembly for mounting between a shaft and a housing, one of which is rotating with respect to the other, comprising: a seal casing, said seal casing including an outer case and an inner case; an inner sleeve secured to said shaft; a seal ring, said seal ring connected to said seal casing by a deflectable seal element; a spring, positioned between said seal casing and said seal ring, said spring operative to urge said seal ring in an axial direction; a mating ring having a mating surface and a side surface; a cup gasket, said cup gasket having a flange portion and a tubular portion, said flange portion positioned between said side surface of said mating ring and a radial inner surface of said inner sleeve such that said flange portion of said gasket is sandwiched between said radial inner surface of said inner sleeve and said side surface of said mating ring to form a static seal, said tubular portion includes a plurality of pads, said pads positioned on an inner circumferential surface of said tubular portion; said mating ring includes an inner circumferential surface spaced from an outer circumferential surface of an inner circumferential flange of said inner sleeve such that an annulus of determined width is formed between the mating ring and inner sleeve and said tubular portion of said gasket extending axially within said annulus having a determined width wherein the width of said tubular portion is less than the width of said annulus.