

B
• SIM method to prevent the spring from falling off (integral molding of spring and rubber)
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.

rubber tube gasket. This is especially important in environments with high levels of mechanical stress or movement, where a rigid gasket may fail to provide adequate protection.
Nitrile Butadiene Rubber (NBR, nitrile)
Case study 3: Product changes in oil seals
Role of Rubber Oil Seals: Versatility and Performance
There is a little leakage as the fluid vapors get released into the atmosphere from the faces of the seal, though. Since the quantity is hardly quantifiable, the seals are considered leak proof.
PTFE, which is used in the well-known brand Teflon®, is less commonly used, but it is the preferred material for specific rotating seals in the chemical, food and pharmaceutical industries. This material is notable for having a very low frictional resistance and the best chemical resistance. It can also withstand a very wide range of temperatures in these types of seals; -80 ˚C to 200 ˚C. The shafts on which oil seals with PTFE lips are used require a harder and finer finish. Something like an axle sleeve can also be used to meet this requirement.