Abstract
The article presents the results of an analysis of the pattern of voltage changes in the driven branch of transmission by a braid with a variable gear ratio using the analytical method. A system of differential equations is obtained that describes the movement of the belt drive rollers. Based on the numerical solution of the problem, the laws were obtained changes in braid voltage in the driven transmission branch. Graphical dependences of the change in the maximum voltage value in the driven branch on the values of the pre-tension of the transmission band have been constructed. The parameters of the belt drive are justified.