Analysis of Flexspline in the Harmonic Drive System: A Review

This paper is devoted to various study based on power transmission system called harmonic gear drive, which gives the high-speed reduction & power transmission capacity. This harmonic drive provides accurate as well as precision with much less space as compared to any other power transmission drives. This paper discusses the basic working principle, various problems faces during the analysis of harmonic gear drive, meshing characteristics of the teeth with its advantages. Essential difference between harmonic drive and conventional gear drive is that flexspline in harmonic drive is flexible and the centre distances of teeth vary continuously during meshing.