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SKF Mudblock seals MUD6

For grease-lubricated applications

SKF Cassette seal design MUD6 is a cassette seal, specifically developed for grease-lubricated heavy-duty applications in harsh environments and tough operating conditions. Also called SKF Mudblock seals.

SKF Cassette seals MUD6 are designed for use in grease lubricated applications and provide features including:

  • Rubber outside diameter for reliable seal retention in the bore as well as improved sealing performance
  • Rubber covered inside diameter for improved sealing performance and easy installation
  • Integrated wear sleeve
  • Bumper maintaining the relative position between the seal and the sleeve as well as acting as a barrier against contaminants
  • Auxiliary radial lips for contaminant exclusion

Design features

All SKF Mudblock seals are designed with an integrated wear sleeve and a rubber inside diameter, but can have any one of a number of sealing lip and auxiliary lip configurations. The elastomeric material is normally nitrile rubber, but the seals are also available in other compounds including fluoro rubber, hydrogenated nitrile rubber or polyacrylate to meet the demands of different operating conditions.

Sealing lip materials

In addition to its design, the material of a sealing lip can have a significant impact on sealing performance and reliability. SKF, therefore, manufactures seals using a variety of sealing lip materials to meet the needs of different applications.

Testing

SKF conducts tests in climatic cells of the SKF Mudblock seals at global testing facilities in USA, Europe and Asia. The tests include both our own tests and tests according to customer specifications.
SKF Mudblock seals are engineered using Finite Element Analysis (FEA) to obtain optimum design solutions. FEA evaluates:
  •     Stress/strain behavior of the sealing lip in deformed condition
  •     Lip contact forces
  •     Lip opening pressure
  •     Displacement of the lips
  •     Assembly simulation of seal and sleeve

  • Installation

    Proper installation of SKF Mudblock seals is important for optimal functioning of the seals. Please contact SKF for information and support regarding the design of installation tools for SKF Mudblock seals.