When we customize the rubber sealing ring, we first need to understand the performance of the relevant rubber and whether it is applicable.
NBR has very good oil resistance, its oil resistance is second only to polysulfide rubber and fluororubber, and it has very good wear resistance and air tightness. However, NBR also has its limitations. Its disadvantage is that it is not resistant to ozone and aromatic, halogenated hydrocarbon, ketone and ester solvents, and it is not suitable for insulating materials. The heat resistance of NBR is better than that of SBR and Cr, and it can work for a long time at 120 ℃. Air tightness is next to butyl rubber. With the increase of acrylonitrile content, the tensile strength, heat resistance, oil resistance, air tightness and hardness of NBR increase, but the elasticity and cold resistance decrease.
NBR is mainly used to make oil resistant products, such as oil pipes, tapes, rubber diaphragms and large oil bags. It is commonly used to make various oil resistant molded products, such as O-rings, oil seals, cups, diaphragms, valves, bellows, rubber pipes, seals, foams, etc., and also used to make rubber plates and wear-resistant parts.
The framework oil seal is made of high-quality nitrile rubber and steel plate, with stable quality of silicone rubber and long airtightness service life of silicone rubber sealing ring. The NBR framework oil seal is widely used in engines, shock absorbers, transmissions and other places of various machines such as automobiles, motorcycles, tractors, water pumps, etc.
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