Sprocket - Silent Chain Force Distribution with the Influence of Friction

Abstract

The aim of this paper is to define and to analyse the theoretical contact forces that appear in a sprocket - silent chain joint. The contact force between the links and the teeth flanks of the sprocket can be considered as a reaction to the axial force in chain (tensioning force), transmitted throughout the pin - links joints. Friction forces will be considered in the joints and in the link - sprocket joints, which will be defined by the corresponding friction angles. The centrifugal force is also considered. This paper is presenting the steps to obtain the analytical model for the forces from the sprocket - link and the pin - link joints, depending on the tensioning force and the centrifugal force. These forces are computed in order to establish their distribution along links.