Abstract

The paper presents, starting from some kinematic aspects as rotations and translations between the Oldham coupling parts, some kinematic equations useful in determining of intermediary element position depending by the transversal misalignments. Then, using the inside translational movements between parts, the friction coefficient between adequate materials to be used are studied. The friction which appears between the coupling parts has an important influence on their dynamic behaviour, wear and lifetime. The most significant friction and also wear is given by the translational movements between parts. Due to this, the study of the friction between some materials to be used in coupling manufacturing is required, but also difficult because of some particularities, as reduced parts translational movements for reduced transversal misalignments between shafts, or the alternative translational movement in translational joints. In the paper final part the results and conclusions are presented.

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