material introduction
Common materials for oil seals are: nitrile-butadiene rubber, fluororubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. When selecting the material for oil seals, the compatibility of the material to the working medium, the adaptability to the working temperature range and the ability of the lip to follow the rotating shaft at high speed must be considered. Generally, the temperature of the lip when the oil seal is working is higher than the temperature of the working medium by 20~ 50 ° C. Attention should be paid when selecting the oil seal material. For details, please refer to: Types and characteristics of rubber. The working range of oil seals is related to the materials used for oil seals: -40~ 120 ° C when the material is nitrile-butadiene rubber (NBR), -30~ 180 ° C for Aggreko rubber (ACM), and -25~ 300 ° C for fluor
functional use
Engine: Crankshaft - front crankshaft, rear oil seal valve - valve oil seal (engine repair kit o-ring) (distributor oil seal, water pump oil seal, balance shaft oil seal, oil pump oil seal...); camshaft - camshaft oil seal; transmission: transmission - transmission front, rear oil seal shift rod oil seal (transmission repair kit o-ring) (transfer - transfer front, rear oil seal); rear axle: half shaft - rear half shaft oil seal differential - (front) rear angle vector oil seal rear wheel oil seal front wheel oil seal directional machine oil seal (directional machine repair kit o-ring) directional booster oil seal (front half shaft oil seal).
All parts of the rotating body box that have liquid lubricating oil and are connected to the outside need oil seals. Some are rubber, some are metal, and most are steel rubber, such as crankshaft rear oil seals, gearbox front and rear oil seals, left and right half shaft oil seals, main reducer front oil seals, air compressor crankshaft oil seals, etc.