Radial shaft seal
The radial shaft seal is used to seal rotating machinery. It prevents the leakage of media in machine elements or, for example, acts against external contamination. It consists essentially of an elastomer part, a spring and a reinforcing ring. The outer sheath may be made of an elastomer material or a metal material. We distinguish between three main types: Elastomeric outer sheath; metal outer surface; metallic outer surface with an additional stiffening cap. In addition, for all three versions there is an additional dust lip. Some of the designs are also available with two sealing lips and/or right, left or alternating twist, and in a variety of elastomer and PTFE materials.