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2550
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2840
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2735
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207
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903
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2223
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2089
The metal used in the outer case of oil seals is usually made of carbon steel. Upon request, and depending on quantities, a different type of steel (such as stainless steel) can be used.
Does it mean the seal stops the leakage completely? Well, on the practical grounds yes because there is no ‘visible leakage’.
What are Oil Seals and the different types?


5. Conclusion
When the requested S-DUO type is not available, two S-types can be filled back to back
Selecting Quality Car Engine Head Gaskets and Automotive Rubber Gaskets
Overview of Oil Lip Seals
oil seal


Stainless steel sheet
(JIS* SUS304)


oil seal 12 22 5.
Garter springs are generally used when the lubricant is oil, as it provides the necessary downward force to maintain a tight seal. However, when grease is the lubricant, garter springs can often be eliminated. Due to its low viscosity, grease doesn’t require as much downward force to maintain an effective seal.