Hydraulic oil seals are sealing elements used to seal rotating shafts in mechanical equipment


My company specializes in providing four-column hydraulic seals and other products, our products are of reliable quality, high credibility, reasonable prices and widespread customer trust. The following introduces the seal mechanism principle of the four-column oil seal.

1. Overview: Hydraulic oil seals are sealing elements used to seal rotating shafts in mechanical equipment, and the cavity is essentially stationary.

2. Oil seal of the oil seal: static seal between the outer edge of the oil seal and the cavity, and at the same time ensure the reliable positioning of the outer edge of the oil seal between the cavities. The seal state between the seal lip and the shaft is dynamic when the shaft rotates. Sealed, static seal when shaft is at rest.

3. Hydraulic seal principle: In order to achieve the sealing effect, a layer of oil film must be formed between the shaft and the lip gap of the oil seal. Under the action of the liquid surface tension and the seal lip of the oil seal, a layer of oil film is formed to prevent leakage of the working medium. In order to realize the sealing of the rotating shaft, the oil film thickness is too large, and the oil seal leaks; if the thickness is too small, dry friction may occur, causing oil seal and shaft wear; if there is no oil film between the seal lip and shaft, heat and wear may occur easily. There are many influencing factors. For example: the smoothness of the sliding surface, the pressure distribution at the contact part, etc.

The company's aim is to provide users with excellent products, quality service, advance in the development, in the development of the increase. Welcome all users friends to plant consulting, negotiations and guidance, and is willing to cooperate sincerely with you!

Dongguan Yintong Machinery Technology Co., Ltd. is committed to becoming a world-renowned supplier of hydraulic machinery and realizes the perfect integrated design, R&D and production of hydraulic systems and complete hydraulic products. Over more than ten years of profound accumulation, the high-end talent gathered in the hydraulic machinery industry has passed the IQNET international certification alliance and the ISO9001;2008 international quality management system certification, with a strong R & D strength and excellent quality control, to create Product/news/2012101185.html


The development of Yintong Machinery is based on independent innovation and cumulatively applied for more than ten patents. These scientific and technological achievements have laid a solid foundation for the company's development into a well-known brand, continue to enhance the company’s core competitiveness, and continue to provide users with more personalized, Specialized and intelligent hydraulic machinery equipment. In the future, the company will increase its investment in science and technology, improve its independent innovation system, strengthen product upgrades and extensions in related fields, commit itself to the cultivation of its own independent innovation and sustainable development capabilities, and is determined to become China's first-class hydraulic machinery enterprise.

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