Abstract
Because of the geometrical limitation of face tooth width, the face-gear drives were applied usually only for low power or motion transmission. In order to extend the application, tooth width design is thus a very important topic for the design of face-gear drive. In this presentation, the authors show a new concept to design the face-gear drive for power transmission by applying nonstandard basic rack and profile shifting. Additionally, an optimal relation of helix angle and offset will be established to get a maximum face width and better mesh performance for hypoid face gear. A new classification and method to calculating the contact ratio of face gear drive are also introduced. Finally, a numerical example will illustrate the mentioned concepts and calculation methods.
