Shaft seal

Abstract

Abstract In a shaft seal (1) with a solid shaft seal ring (4) manufactured from possibly filled polytetrafluoroethylene or materials of a similar kind, and an axial limb (6) situated at the outer periphery and forming the seating surface, annular encircling grooves (7), preferably with a triangular, sawtooth-shaped cross-section, are machined into the seating surfaces of the receiving hole (2) of the housing. When the shaft seal ring (4) is pushed in, the polytetrafluoroethylene flows into these grooves under the pressure applied, with the result that the shaft seal ring (4) is secure against axial displacement and, with a good press fit, provides optimum static sealing in the region of the seating surface. An additional, elastically deformable projection (11) at the outer periphery of the shaft seal ring (10), which snaps into a corresponding groove (7) in the seating surface of the receiving hole upon assembly, provides additional security for the shaft seal ring (10) in relation to axial displacement and twisting in the circumferential direction. <IMAGE>

Inventors

• 👤 Norbert Dipl.-Ing. Jung

Bibliographic Details