Excessive wear
Possible root cause
Internal working pressure increases
Entry of external pollutants
Excessive radial load or interference
under lubrication
Internal contaminant entry
Inappropriate material selection for application
The seal reaches the normal service life
The shaft running surface is too rough
Possible solutions
decontamination
Change to a sealing material with higher wear resistance or increase the lubrication surface finish of the sealing lip to comply with RMA/ISO standards
Radial load reduction
