- Steel Reinforcement Used where higher load capacity is necessary.
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.
1. Oil seals have three basic components: sealing element, metal case, and spring.

Material Code ISO 1629
Nitrile is the most widely used rubber (elastomer) and it’s recommended as the best for almost all standard applications. This is solely due to the fact that nitrile has some intrinsic properties, such as low cost and compatibility with most environments. Some of the general applications of nitrile are non-latex gloves, automotive transmission belts, footwear, gaskets, synthetic leather, hoses, o-rings, and oil seals.
What is Oil Seal | Purpose , types of Oil Seal , Advantages
Automotive rubber gaskets are widely used in various vehicle systems for their flexibility, resilience, and sealing properties. These gaskets are employed in applications such as engines, transmissions, and exhaust systems, providing reliable sealing solutions to prevent fluid or gas leakage. The versatility and durability of automotive rubber gaskets make them essential components in maintaining the integrity and efficiency of vehicle systems.
Figure 4.4. Scanning electron microscope (SEM) image of the surface quenched for (A) uncured rubber and (B) transmission electron microscope (TEM) image for cured rubber [64].