The purpose of an Victor Reinz oil seal is to provide sealing between the rotating crankshaft and the outside. Classical oil seals consist of a metal housing that carries the dynamic sealing lip and also provides the static sealing function. The sealing lip of Oil Seals is usually manufactured of elastomer material, and is in contact with the surface of the rotating shafts. Hereby, the lip is pressed onto te shaft surface by means of a spring ring. As a result of the rotational movement, there is a sealing gap of approx. 1 μm at the lip edge. Oil can enter this gap, which serves to lubricate the sealing lip.
The material for future Oil Seals is named PTFE. Low friction and minimum power cunsumption are the decisive advantages offered by PTFE oil seals. These seals can be used without problems also with dry operating range of -130ºC to +200ºC, are unrivalled. Moreover, PTFE is featured by high chemical resistance and a low breakaway torque after standstill.
The outer housing is made of stainless steel. An O-ring of fluoroelastomeer ensures optimal static sealing. The internal diameter is perfectly concentric with the outer diameter. The actial sealing lip is made of highly wearresistance and low friction PTFE. An additional dust seal (rubber lip or felt strip) an more effective barrier against contaminating particles.
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