Oil seal Mudblock MUD11 SKF - is a new generation of a bidirectional cassette seals, developed for oil and grease lubricated heavy-duty applications in harsh environments and tough operating conditions. 

Characteristics and advantages:

• half-metal/half-rubber outside diameter;
• axial and auxiliary radial lips for contaminant exclusion;
• multi-lip seal design;
• spring-loaded main sealing edge;
• Integrated wear sleeve;
• nitrile rubber specially developed by SKF.

Garter spring material - s carbon steel according to DIN 17223 and EN 10270 (Standard specification for steel wire for mechanical springs). Sleeve insert material - is low carbon steel according to EN 10130 and EN 10139 for cold stamping.

FPM (or FKM - designation adopted by the American Society for Testing and Materials) - fluoro rubber - is characterized by high chemical resistance and temperature stability. The fluorine content ensures the non-flammability of the material. It has good resistance to aging, lubricants and fuels, ultraviolet radiation and aggressive chemical compounds. Unstable to: hot water, steam, organic acids, brake fluids based on glycol ether.