- The design of high pressure oil seals varies depending on the specific application
high pressure oil seals. O-Rings, V-Rings, and lip seals are common types, each with their own unique advantages. For instance, O-Rings are simple yet effective, while lip seals are ideal for high-speed applications due to their self-cleaning property.
All are fitted with a spring to preload the sealing lip. All these types are for non-pressurised or low-pressure applications up to 0.5 bar for diameters of a limited size. For diameter of 500 mm or more, the maximum pressure is 0.1 bar. For higher pressures, special types or PTFE lip seals can be used.
Its sealing edge comes in full contact with the shaft surface in order to provide excellent sealing performance.
(See Figure 3.)
In addition to these standardised types, the following special types are also available:


Oil seals for cars
Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.
Lip Seals
Oil gasket seals are used in various parts of the engine, including the valve cover, cylinder head, and oil filter housing. These seals are designed to prevent oil leaks and maintain the integrity of the engine components. The oil gasket seal ensures that the engine remains properly lubricated and free from oil leaks, contributing to its overall efficiency and reliability.
Right Valve Cover Gasket: Essential Component for Engine Integrity
Table 4: JTEKT oil seal type codes and corresponding ISO and JIS standards
Common causes of oil seal failure
Table 8 shows the housing design checklist.