Abstract

Based on Muijderman narrow groove theory, the pressure distribution of lubricant film in a spiral groove mechanical seal was calculated, and the friction characteristics between the end faces were analyzed. It has been found that the rotating speed has a greater influence on friction, and the friction between sealing faces increases with the increase of rotating speed. The friction between the end faces in a spiral groove mechanical seal decreases with the increase of the angle and depth of the spiral grooves.

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