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Oil seal and other sealing devices have those strengths

Update:16 Oct 2017
Summary:

   1, simple structure, easy to manufacture. Simple oil […]

   1, simple structure, easy to manufacture. Simple oil seal can be molded once, even the most complex oil seal, the manufacturing process is not complicated. Metal skeleton oil seal only through the stamping, gluing, mosaic, molding and other processes can be composed of metal and rubber seals required.
   2, light weight, less supplies. Each oil seal is a combination of thin-walled metal parts and rubber parts, the material consumption is very small, so the weight of each oil seal is very light.
   3, the oil seal installation location is small, small axial size, easy processing, and make the machine compact.
   4, good sealing function, long service life. The vibration of the machine and the eccentricity of the spindle has a certain degree of adaptability.
   5, easy to dismantle, test convenience.
   6, cheap.
   The disadvantage of oil seal is that it can not withstand high pressure, so it can only be used as bearing oil seal.
   The working range of the oil seal is as follows:
   Working pressure ~ 0.3MPa
   Sealing surface speed low speed type <4m / s, high speed type 4 ~ 15m / s
   Operating temperature -60 ~ 150 ℃ (with the rubber type)
   Combined with medium oil, water and weakly aggressive liquids
   Life of 500 ~ 2000h.

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