![]() The material of the protective film layer is emulsified silicone oil with high degree of overlap. The thickness of the protective film layer is 30 μm to 50 μm. The material of the ring core is rubber, preferably vulcanized rubber, neoprene rubber or saturated nitrile rubber. The utility model relates to an O-shaped gasket, comprising: a ring core, which is ring-shaped and a protective film layer covering the ring core. The temperature range is wide, the cross-sectional structure of the O-ring is very simple, and it has a self-sealing effect, and the sealing performance is safe and reliable. ![]() In addition, the cost of the O-ring is low, and the dynamic friction resistance is relatively small.īy selecting suitable rubber materials and then designing in accordance with the requirements, an effective sealing effect on oil, air, gas and various chemical media is realized. ![]() Since the O-ring itself and the structure of the installation part have been standardized, the installation and replacement are very easy. It is also suitable for multiple motion modes such as rotary motion, axial reciprocating motion or combined motion. The size and groove have been standardized to facilitate the replacement of parts. It is also suitable for various purposes. O-rings are suitable for various sealing forms such as static sealing and dynamic sealing. Compared with other types of sealing rings, O-rings have the following advantages:
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