About Us

Yiwu great seal rubber products company( GS)  is professional sealing products manufacturer with more than 20 years experience with more than 160 employers in zhejiang China,We own high quality technical team with rubber formulation room and test room for rubber seals ,It is a specialized company integrating R&D and manufacturing.goods export to Russia,USA,Germany,Iran,Mexico,New Zealand and so on .Seals production OEM experience with ISO/TS16949

various shaft oil seals,O ring kits, engine crankshaft oil seals, bearing seal,valve stem oil seals, axle oil seals,gearbox oil seal , transmission oil seals, PTFE oil seal,mechanical seal,gas spring oil seals, rotary oil seals, engineering machinery seals and valve cover gasket.



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  • Causes of oil leakage of crankshaft oil seal

    Crankshaft is an important part of automobile engine. Its function is to convert the gas force from piston and connecting rod into torque, and the linear motion of piston into rotary motion, a valve train and other auxiliary devices for driving a vehicle’s transmission system and an engine. Basic...
  • What is Gear Reducer oil seal ?

    Today we’re going to share a part of the gear reducer, a very critical part: reducer oil seal , the gear oil seal or gearbox oil seal . The reducer is generally placed between the motor and the working machine, and the input and output ends are respectively connected with the motor shaft and t...
  • How to deal with oil leakage of automobile oil seal?

    Valve oil seal is one of the important parts of the engine valve set. It contacts gasoline and oil at high temperature. Therefore, it is necessary to use the material with good heat resistance and oil resistance, which is generally made of fluororubber. Oil leakage is caused by oil seal proble...

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