Worm gears with optimized main geometrical parameters and their efficiency

Abstract

The paper gives a method of designing worm gears with the main geometrical parameters (module mx and diameter factor q) obtained so that the overall size is low and the efficiency is high. Using the obtained expres-sions, a given load to be transmitted and the possible varia-tions for addendum modification plots were generated in MATLAB to help the designer to obtain maximum effi-ciency with minimum overall size. As shown in the plots, in order to have a high efficiency, the worm gear must be designed with high module, low diameter factor and posi-tive addendum modification.