he dissertation deals with the research of the parameters of harmonic transmission systems with respect to the backlash of these transmission systems. The theoretical part of this work is a detailed introduction to the theory of harmonic transmission systems. Subsequently, the main operating characteristics of harmonic transmission systems and the principle of their function are analyzed. The last part of the theoretical work describes the principle of determining the size of the backlash of harmonic transmission systems. In the practical part, the work deals with the creation of an analytical computational 2D and 3D model of a harmonic transmission system. This work further describes the process of creating the geometry of individual action bodies and describes the issues associated with their creation. Furthermore, the work deals with the construction of a computational 2D and 3D model and the processing of results obtained from simulations. In the last part of this work, the measurements that took place in computer software are presented. At the end of this work is an interview about the benefits and results for practice.