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KNT is your reliable supplier of various excellent automotive shock absorber oil seals, engine crankshaft oil seals, valve stem oil seals, axle oil seals, transmission oil seals, gas spring oil seals, air conditioner compressor oil seals, construction machinery seal products and other rubber parts.
Commonly used materials for oil seal include: chore rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc.
Skeleton Oil Seal is a typical representative of oil seals. Generally speaking, oil seal refers to skeleton oil seal, which is widely used in aviation, automobiles, ships, home appliances, engineering machinery and other industries. The role of the oil seal is generally isolate the components that need to be lubricated in the transmission part from the rotor parts, so as not to leak the lubricant. The skeleton is like the reinforcement in the concrete component, which plays an enhanced role and enables the oil seal to maintain the shape and tension. The skeleton can be divided into single lip skeleton oil seal and lip skeleton oil seal according to the structure form. The auxiliary lips of the lip skeleton oil seal have a dustproof effect to prevent the outside of the outside world from entering the machine. According to the skeleton type, it can be divided into inner packaging skeleton oil seal, exposed skeleton oil seal and prefabricated oil seal.
The structure of the skeleton oil seal
The skeleton oil seal is mainly composed of oil seal, enhanced skeleton and self -tight screw spring. Generally, the inner diameter in the skeleton in a free state is smaller than the axis diameter, which has a certain “over -profile”. Therefore, when the oil is encapsulated into the oil seal and the shaft, the pressure of the oil seal blade and the contraction force of the self -tight screw spring can generate a certain radial tight force on the shaft. After a period of operation, the pressure will quickly decrease or even disappear. Therefore, the spring can compensate the oil at any time.
