Wet mud mixed with sand can behave like lapping paste around a rotating shaft. Once particles reach the main lip, shaft scoring and edge wear can quickly create a leak path.
An integrated COMBI seal places an exclusion barrier toward the dirty side of the application. This helps take the first contact with mud and splash while the inner sealing function retains oil or grease.
Helps resist packed mud and slurry
Reduces abrasive exposure at the primary lip
Supports cleaner bearing lubricant
Useful for hubs, axles and rotating housings
Targets harsh construction and earthmoving environments
Where slurry is the recurring cause of premature seal failure, layered exclusion provides a more practical defense than relying on lubricant retention alone.



