Regular maintenance and inspection of shaft oil seals are essential to ensure their proper functioning and prevent costly downtime and repairs. Signs of a worn or damaged seal include oil leaks, increased noise or vibration, and decreased efficiency. If any of these symptoms are detected, it is important to replace the seal promptly to avoid further damage to the machinery.
- No contact
use of sealants


changing spark plugs.
To ensure correct fit and proper protection against contaminants, the inside diameter of an oil seal must be slightly smaller than the shaft diameter.
The benefits of silicone include:
Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.
Because of the higher temperature resistance of FKM, this material is also chosen for applications where higher speeds play a role, which raise the temperature at the sealing lip considerably. Usually, using FKM will result in a longer life than using NBR. This compensates the higher price of FKM compared to NBR, as an FKM does not have to be replaced as frequently. The low temperature resistance of standard FKM is limited to -15 ˚C.
Make sure the fuel-pipe connections are clean. Unplug them and reconnect to the pump.
Which option is best? This decision is left entirely to you. Whatever solution you choose, the seal needs a proper fit to function.