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This represents a new generation of oil seals.
- 3. Combination Metal-to-Oil Seal Combination seals combine the features of both face-type and cartridge-type seals. They consist of two metal rings that are pressed together, with a sealing element sandwiched between them. The outer ring of the seal is designed to fit into a groove in the housing, while the inner ring remains in contact with the rotating shaft. Combination seals are commonly used in applications where both high pressure and temperature conditions are present.
- PTFE Oil Seals – Are a relatively new oil seal, the use of polytetrafluoroethylene means they can withstand dry and unlubricated operations. They have a massive thermal range spanning from -130°C to more than 200°C and a strong resistance to chemicals, they are the future of rotary shaft seals.
1) Seal type
Purpose of an Oil Seal
- Another important feature of radial oil seals is their ability to withstand high pressures and temperatures
resistance, high resilience and wear resistance. Natural rubber is not resistant to mineral oil, but in
• Super helix seal (seal with one-way two-step screw)


Shaft Hardness
It is generally used in the union of two lubricated parts, so that it hermetically seals both sides. Therefore, it guarantees the proper engine operation and helps to maintain the vehicle’s distribution system in better condition.
Above, are all the components of an oil seal and all its naming conventions. Beyond selecting the correct size, the three primary selection criteria are Material, Lip, and Case. If you have an oil seal you’d like custom designed and made, send us your specifications through our Oil Seal Design Form.