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Home >>> News >>> Seal
Seal
Addname:admin    Viewcount:97     Date:2013-11-06 02:18:16


Seal

Seals are used to seal oil ( oil is the most common transmission liquid substances , it also refers to the general meaning of the liquid substance ) of the mechanical components, transmission components it needs to lubricate the parts and components contribute to isolation , and will not let lubrication oil leakage. Static seal and dynamic seal ( usually reciprocate ) seals called seals. The representative form of TC oil seal oil seal , which is a completely coated with rubber springs from the tight seal lips, the general said, often refers to this tc oil seal oil seal .

Seal (oil seal) is a general habit of seals title, simply the oil seal.

1 Classification

Seals are generally divided into haplotypes and assembly type , assembly type is a skeleton with a lip material can be freely combined , generally used for special seals .
From seal oil seal , characteristics, structure type , work status and sealing mechanism of various forms and can be divided into different name , but the habit will generally called rotary shaft lip seals oil seals, static seals and dynamic seals ( generally reciprocated ) is called with a sealing member seals. The representative form of TC oil seal oil seal , which is a completely coated with rubber springs from the tight seal lips, the general said, often refers to this tc oil seal oil seal .

2 Materials

Common seal materials: nitrile rubber, fluorine rubber , silicone rubber , acrylic rubber , polyurethane, polytetrafluoroethylene . Select the seal material must be considered material on the compatibility of the working medium of the operating temperature range of adaptability and lip rotary shaft rotates at high speed on the ability to follow . Usually the lip seal working temperature is higher than the working medium temperature of 20 ~ 50 ¡æ, the seal material should be selected
I pay attention . For details, see : Rubber types and characteristics . The scope of work and seal oil seal materials used for : material is nitrile rubber (NBR) when -40 ~ 120 ¡æ, Aggreko rubber (ACM) -30 ~ 180 ¡æ, Viton (FPM) -25 ~ 300 ¡æ.

3 Functional use

Engine: Crankshaft - Crankshaft front and rear oil seal valve - valve seals ( Engine repair kit o-ring ) ( distributor seals, pump seals, balance shaft oil seal , oil pump seal ... ) ; camshaft - camshaft oil seal ; Transmission : Transmission - Transmission front and rear oil seal shift lever seal ( transmission repair kit o-ring ) ( splitter - splitter front and rear oil seal ) ; rear Axle : axle - rear axle differential oil seal pacer - ( front ) rear corner vector direction of oil seal rear oil seal oil seal oil seal front wheel ( steering repair kit o-ring ) direction booster seal ( front axle seal ) .
Those who work with liquid lubricant inside the body but connected with the external parts are required seal . Some are rubber , some are metal, mostly steel rubber , such as the crankshaft rear oil seal , oil seal gearbox front , left and right axle seal, main gear front oil seal , air compressor crankshaft , etc.



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