TRIBOLOGY OF HYDRAULIC SEALS FOR ALTERNATING MOTION

The present paper summarizes the friction properties of hydraulic piston and piston rod seals and the concerned calculation methods, based on test results published (in the literature) and on the own test results of the author. It includes the author's advanced friction force calculation method to estimate the expected friction force (loss) of different elastomeric and composite material seals. The major aim of this paper is to recommend an advanced calculation method, which is based on the diagrams obtained from the 'Friction characteristic tests.' The method is suitable to calculate the expected friction force at any working parameter within the parameter range of the tests