The primary function of a shaft oil seal is to retain lubricating fluids within the system while preventing the ingress of external contaminants. This is particularly important in high-speed applications where the loss of lubricant or the entry of contaminants could lead to rapid wear and damage to the equipment.
The care taken during the installation process will pay off by allowing the seal to work quietly and operate efficiently behind the scenes of your application.


5. TYPES OF FLUID: Numerous oil seals can interact with oils, fuels, grease, water and more. However, know exactly what type of fluid the rotary shaft seal will be in contact with will ensure the longevity of the seal and the machinery.
There may be a rubber '0' ring oil seal round the base of the distributor, or a paper gasket under the plate of the securing clamp. Remove either seal, clean away all dirt and oil, and fit the new one.
B

The most common oil seals are the ERIKS types R, RST, M and MST, which correspond respectively to types A, AS, B and BS according to DIN 3760/ISO 6194.