Oil seal used materials are: nitrile rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene and so on. When selecting the oil seal material, the compatibility of the material with respect to the working medium, the adaptability to the operating temperature range, and the ability of the lip to rotate at high speed for the rotary axis must be taken into account. General oil seal work when the lip temperature is higher than the working medium temperature 20 ~ 50 ℃, in the choice of oil seal material should be noted. For details, please refer to: Rubber types and characteristics. The working range of the oil seal is related to the material used for the oil seal: the material is -40 to 120 ° C for the nitrile rubber (NBR), the rubber of the rubber (ACM) -30 to 180 ° C, and the fluororubber (FPM) -25 to 300 ° C.

Engine: crankshaft - crankshaft front and rear oil seal valve - valve oil seal (engine repair kit o-ring) (distributor oil seal, pump oil seal, balance shaft oil seal, oil pump seal ...); camshaft - camshaft oil seal ; Transmission: transmission - transmission before and after the oil seal shift lever oil seal (transmission repair package o-ring) (splitter - before and after the oil splitter); rear axle: axle - rear axle oil seal difference (Front axle oil seal).

Any oil tank that has liquid lubricating oil and which is connected to the outside is required. Some are rubber, some are metal, mostly steel rubber, such as crankshaft after the oil seal, gearbox before and after the oil seal, left and right axle oil seal, the main reducer before the oil seal, air compressor crankshaft oil seal.