No single physical property of rubbers is responsible for the successful performance of an oil seal or ‘O’ ring. The ultimate tensile strength, breaking elongation, modulus, shore hardness, creep and stress relaxation in tension and compression loads are all important physical properties that characterize a seal or ‘O’ ring. Compression strength and set together with stress relaxation or decay are important for effective sealing. The difference in these properties in a swollen seal is highly critical. An optimum swelling value in a fluid medium is a desirable feature. De-swelling decreases the seal pressure against the wall of the housing where the seal is fixed, leading to leakage. Over swelling minimizes the physical properties of the rubber. Seals made of polysulfide rubbers have extreme fuel resistance but undesirably high compression set. The effect of temperature on the seal is an important factor. Swelling under stress can increase at higher temperatures and a suitable compounding technique should be adopted to reduce this effect.
- Oil seal in motor plays a crucial role in ensuring the proper functioning of the engine. The oil seal is a device that prevents the leakage of oil and other fluids in the motor. It is designed to create a seal between two parts of the motor to prevent the entry of contaminants and to keep the oil inside the motor's housing.
- Innovations in material science continue to enhance the performance of small rubber gaskets. New formulations resist deterioration from oils, acids, and other harsh chemicals, while also offering improved flexibility in extreme temperatures. As industries evolve, so too must these humble components to meet new challenges.
- The benefits of using an e6tc spark plug are manifold. They offer improved engine startup, even in cold conditions, thanks to their heat range capabilities. They reduce misfires, leading to better fuel economy and reduced emissions, aligning with modern environmental concerns. For enthusiasts and professionals alike, these plugs provide the reliability needed for high-performance driving without sacrificing the longevity of the engine.
Common Oil Seal Failure Causes
If you are looking for the highest temperature resistant oil seals, Perfluoelastomer can go up to 600°F. If you are more concerned for low temperature, Chloroprene can go all the way down to 40°F, which is why it is used most commonly for refrigeration. And if FDA applications or medical devices are your primary concern, Butyl , the all petroleum compound, will be your best choice. As you can see, when choosing the right material to work with, you must analyze several other key components to help choose the right one.
However, the new variant also comes with less good properties. Namely less flexibility and less resistance during assembly. Most damages therefore occur during the installation of PTFE oil seals.


There are four general motor oil types:
What Is an Oil Seal, and What Are Its Elements?
Slowly raise the engine about 11 in. (38 mm) and insert wedges between the mounting rubbers and pads .
Over time, the seal lip(s) will wear a shallow groove into the shafting due to the pressure the seal imposes upon it. Visible scoring on the shaft indicates a genuine possibility that the seal will not perform as well as intended. The potential for lubricants leaking out and particulates working their way through the seal drastically increases when placed over a worn location.