Slide-ring seal

In a slide ring seal as assembly for a shaft:

• a seal ring having a first annular portion providing a first axial facing flat surface and a second annular portion providing a second axial facing flat surface which is axially spaced from said first surface and which is parallel to and faces said first surface, one of said portions being disposed within the other and said portions being fastened to each other by a radial shrinkage fit;
• a slide ring, essentially L-shaped in cross section, having an axial facing slide surface on one leg of the L at the end thereof for slidably engaging a corresponding slide surface on another slide ring and also having two opposite axial facing supporting surfaces on the other leg of the L, said supporting surfaces being parallel to said slide surface, said supporting surfaces being held in engagement with said first and second surfaces on said seal ring by a shrinkage fit and there being a radial gap between the outer periphery of said slide ring and the inner surface of said seal ring, the dimension of said gap being large enough that said slide ring is fastened to said seal ring solely by an axial press fit between said supporting surfaces said first and second surfaces.