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Excavator oil seals are mechanical components used to seal transmission parts of excavators (such as hydraulic cylinders and engine valve guides). Their main function is to prevent lubricating oil or hydraulic oil leakage and to prevent external impurities from entering the equipment. Their core role is to isolate lubricated components from power-output components, ensuring normal machine operation.
Skeleton Oil Seals: The most common type, consisting of a fully rubber-covered skeleton and a self-tightening spring, suitable for rotating shaft sealing.
Materials: Includes nitrile rubber (NBR, temperature resistance -40~120℃), hydrogenated nitrile rubber (HNBR, temperature resistance -40~200℃), and fluororubber (FKM, temperature resistance -20~300℃), etc.
Floating oil seal: Used in mining machinery, it consists of static and rotary floating seal rings and requires high-precision coaxial installation.
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brand |
OEM |
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Warranty period |
No after-sales service |
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Mechanical test report |
Unavailable |
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Brand Name |
OEM |
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quality |
High quality |
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country of origin |
Shandong, China |
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Video factory inspection |
Unavailable |
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brand |
OEM |
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Warranty period |
No after-sales service |
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Part Number |
707-99-78410 566-15-79260 568-15-12830 |
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app |
Oil seal fit |
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Part Name |
PC800, PC800SE, PC850SE excavators |
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Keywords |
707-99-78410 566-15-79260 568-15-12830 |
