Rotary Shaft Seal Friction, The Influence of Design, Material, Oil and Shaft Surface

This report describes the program in which the friction of more than 60 rotary lip seals was measured over a wide range of conditions. In addition to the speed and temperature, the effects of seal material, lip design, shaft diameter, oil, and shaft surface structure have been assessed. Of these, the type of shaft finish, the design of the sealing lip edge, and the type of oil appear to have the greatest influence.