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Dongguan Minz Rubber & Plastics Co., Ltd.

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Structure classification and performance advantages of dust seal ring

Release time:

2019-04-30 12:30

Source:

Structure classification and performance advantages of dust seal ring
Seal type: dust ring LBH dust seal (skeleton oil seal) dust seal specification type can be divided into skeleton dust seal (skeleton oil seal), no skeleton dust seal, combination seal, lip seal. The brand design concept is to improve the sealing performance, surpassing the traditional seals, and more to use a variety of synthetic materials to improve the performance of the seals. After the design, the lip margin improves the dustproof effect and is customized one by one according to customer needs.
A. skeleton dust-proof sealing ring: the so-called skeleton dust-proof sealing ring is also called skeleton oil seal, and it is also a lip-type oil seal (seal) with skeleton. by using the interference fit between the skeleton and the cavity hole and the flat structure of the sealing ring design standard lip and the end face of the cylinder head, the lip can be avoided from being damaged. therefore, it is often used in occasions where construction machinery and equipment often receive lip scratches.
B. no skeleton dust seal ring: no skeleton oil seal installed in the closed groove at the front end of the cylinder head, the lip shall be slightly protruded from the end of the cylinder head during design, so as to facilitate the timely removal of impurities from the lip. the structure is easy to install and is widely used in marine equipment, hydraulic mechanical seals and pneumatic seals.
C. dustproof combined sealing ring (NBR FKN/PTFE NBR): real-time wear compensation is carried out on the worn PTFE seal (PTFE) lip through the elasticity of the o-ring, and it can be used in high-speed, high-temperature and special working medium occasions with the special synthetic sealing material o-ring. The smaller the size of the O-ring, the larger the quantity.
D. dust lip seal ring (FKM PU/PTFE POM): lip-type dust seal is an improvement of the lip by general dongsheng seal company. when used with seals with auxiliary sealing function, it can reduce the wear force contacting the piston rod and have a longer service life than ordinary lip-type seals.

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