Sealing ring used as a rotary shaft seal, piston sealing ring or rod sealing ring, comprises a fixing part and a sealing part forming an annular washer, which is fixed on a machine part without insertion of a support body

摘要

Sealing ring, especially a rotary shaft seal (1), piston sealing ring or rod sealing ring, comprises at least one fixing part (6) held on a first, preferably stationary machine part, and at least one sealing part (8) lying tightly against a second, preferably moving machine part. The fixing part and the sealing part form part of an annular washer (2), which is fixed on the machine part without insertion of a support body. Preferred Features: The annular washer is made of a polyfluorocarbon such as polytetrafluoroethylene, elastomer-modified polytetrafluoroethylene, or an elastomer or similar material, and is plasma treated, especially plasma etched, at least on its fixing region. The annular washer is connected via an annular binding layer (3), such as an adhesive layer made of foil, to the stationary or moving machine part.