The development history of oil seals ? The interactive sealing encyclopedia oil seal, commonly known as SIMMERRING in English, was invented by a German sealing company, Dr. Froydenbeck Simmer, in 1929. Dongsheng Oil Seal tells you that oil seals are usually used in conjunction with rotating bearings, and are set between the stationary part and the rotating shaft. In the state of shaft rotation, the oil film on the sliding surface of the sealing pair established between the sealing lip and the rotating shaft surface prevents the leakage of lubricating oil. At the same time, relying on the oil seal of the sealing pair established between the sealing lip and the rotating sliding, it prevents external dust and debris from entering the mechanical interior, ensures that the lubricating medium is not contaminated and reduces bearing wear. Therefore, oil seal is one of the important sealing components for maintaining bearing life and ensuring the normal operation of mechanical equipment, and it is also the oil seal for sealing oil!
in the early stages of World War II, oil seal materials were shaped and manufactured using leather. After the war, the use of synthetic rubber oil seals gradually increased, especially in the past 20 to 30 years. Due to the rapid development of industries such as mechanical manufacturing, vehicles, aviation, and aerospace, oil seals were required to be resistant to high and low temperatures, high pressure, special working media, and more suitable for high-speed, vibration, and extended service life, This has promoted extensive and in-depth research on sealing materials, structures, performance tests, quality control methods, and sealing mechanisms of oil seals, greatly improving the sealing performance and service life of oil seals. The successful development of fluid powered oil seals with reflux effect in foreign countries from the 12th century to the early 1960s further advanced the technology of oil seals and solved some very difficult sealing problems.
Polytetrafluoroethylene oil seals have been in use since 1980. They are not only more suitable for ultra high speeds, but also more resistant to high and low temperatures, various corrosive working media, and are suitable for working environments with dry friction. In the 1980s, oil seals began to be imported and exported, and the country began to implement international standards.
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Post time: Aug-17-2023