Oil seal is used to seal oil (oil is the most common liquid substance in the transmission system, but also refers to the general meaning of liquid substance) of the mechanical components, it will drive parts in the need for lubrication parts and output parts isolation, so that lubricating oil leakage. Static seal and dynamic seal (general reciprocating motion) with seals called seals. The representative form of oil seal is TC oil seal, which is a kind of rubber fully covered with self-tightening spring double lip oil seal, generally speaking, oil seal often refers to the TC skeleton oil seal.

The basic information

Oil seal is a common name for general seals. Simply speaking, it is the sealing of lubricating oil.

Oil seals are generally divided into single type and assembly type, assembly type is the skeleton and lip material can be free

Combination, generally used for special oil seals.

From the sealing effect, characteristics, structure type, working state and sealing mechanism of oil seal can be divided into many forms and different names, but generally the rotary shaft lip seal ring is called oil seal, static seal and dynamic seal (general reciprocating motion) with seals called seals. The representative form of oil seal is TC oil seal, which is a kind of rubber fully covered with self-tightening spring double lip oil seal, generally speaking, oil seal often refers to the TC skeleton oil seal.

Oil seal materials
Oil seal commonly used materials are: nitrile rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, ptfe and so on. When selecting the material of oil seal, it is necessary to consider 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 high-speed rotation of the rotating shaft. The temperature of the lip edge of the general oil seal is 20~50℃ higher than the temperature of the working medium, so attention should be paid to the selection of oil seal materials. For details, please refer to rubber types and characteristics. The working range of oil seal is related to the material used for oil seal: the material for nitrile rubber (NBR) is -40~120℃, Alec rubber (ACM) -30~180℃, fluorine rubber (FPM) -25~300℃.

Functional purposes
Engine: crankshaft -- crankshaft front and rear oil seal valve -- valve oil seal (engine repair kit O-ring) (distributor oil seal, water pump oil seal, balance shaft oil seal, machine oil pump oil seal...) ; Camshaft -- camshaft oil seal; Transmission: Transmission - Transmission front, back oil seal shift lever oil seal (TRANSMISSION repair kit O-ring) (PTO - PTO front, back 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 direction oil seal (direction machine repair kit O-ring) direction booster oil seal (front half shaft oil seal)

All parts of the moving body which have liquid lubricating oil and are connected with the outside need oil seal. Some are rubber, some are metal, most are steel bone rubber, such as crankshaft oil seal, gearbox oil seal, left and right shaft oil seal, main reducer oil seal, air compressor crankshaft oil seal and so on.

Commonly used type of