- In manufacturing and industrial settings, metric oil seals play a critical role in maintaining the functionality and reliability of machinery and equipment. Without proper seals in place, oil leakage can lead to decreased efficiency, increased maintenance costs, and potential safety hazards. By using high-quality metric oil seals, businesses can minimize these risks and maximize the lifespan of their assets.
What are Oil Seals and the different types?
Are you looking to keep your machinery free from any unwanted leakages but aren’t sure which rotary shaft seal is right for your needs? This guide will provide you with everything you need to know in order to select the right one for your application.
Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.
In situations where the shaft has splines or an integral gear on the end, you’ll want to take precautions. These gears and splines often have very sharp edges that are quite detrimental to the seal’s integrity. You may use an installation sleeve that will allow the seal to slide past these hazards undamaged.
What is an oil seal and how does it work?


Nitrile Butadiene Rubber (NBR, nitrile)
Valve Cover Gasket and Head Gasket: Critical Sealing Components
The performance of these seals depends to a large extent on a suitable unit load being maintained at the seal-shaft interface. These seals withstand a pressure of 15PSI and their working depends on parameters like shaft diameter, shaft speed, working temperature, service conditions, etc