Figure 4: JTEKT oil seal features

valve oil seal. Excessive oil in the combustion chamber can lead to fouled spark plugs, increased emissions, and reduced engine performance. By controlling the flow of oil into the combustion chamber, valve oil seals help to maintain optimal engine function.
What are oil seals?

Aflas is created from fluoroelastomers (FKM), providing the following benefits:
Oil seals come in many different types and materials depending on their application. Determining the material is vital to ensuring your equipment is operating at its best performance. For example, your equipment may need to run at higher temperature applications, such as an engine seal for a jet engine, you may need to choose a specific material for your oil seals to run properly. In this article, we will explore the most popular and utilized materials in the industry, as well as touch on some of the more unique options out there.
Since oil seals are versatile and multipurpose, they are suitable for all types of mechanical engineering situations, e.g., manufacturing units, automobiles, pumps, etc.

B) Housing-bore eccentricity
As shown in Figure 9, housing-bore eccentricity is defined as being twice the eccentricity between the housing-bore center and shaft rotation center.


Outstanding resistance to mineral oils, aliphatic and aromatic hydrocarbons, as well as CHCs, concentrated and diluted acids, and weak alkalis. Excellent resistance to high temperatures (up to 200 °C) and a low temperature resistance down to -40 °C depending on the type used as well as good mechanical attributes and an exceptionally good ageing resistance make FPM a cut well above the usual synthesis natural rubbers.