Abstract
Because of high friction and wear rubber seals and PTFE seals scarcely are applied on rotaling shafts under high fluid pressure. The paper describes a new seal configuration in which a sealing ring is undulated by the pressure while in axial contact with an undulated back-up ring, whereby lubrication is effectively improved. Experimental results wilh rubber O-rings and optimally shaped PTFE seals under high pressure and medium sliding speed are presented.
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