Seals

Seals prevent lubricants from escaping and dirt, water or process media from entering. Designs range from radial shaft seals and O-rings to labyrinth and mechanical seals. The choice of material depends on temperature, media resistance, pressure and friction speed. The decisive factors are suitable surface qualities, shaft hardness and eccentricity, as well as compatibility with oil and grease additives.

Typical causes of failure are insufficient lubrication of the sealing lip, thermal ageing, chemical swelling or particle wear. Clean installation, correct preload and an appropriate lubrication strategy increase service life, reduce leakage and ensure efficiency and occupational safety.