Compatibility of Various High Ratio Gear Technologies to Fit in a Small Volume - A Review

In past few decades, the technological advancements have been high. Many technologies have been invented, designed and checked for working and safety. In the last three decades many scientists and scholars have contributed a lot, especially in the field of gear transmissions. In this research oriented paper, various technologies (Cycloid Drive, Harmonic Drive) available in gear transmission drives that can work efficiently when designed for high gear ratios and smaller diameters are compared to the conventional gear systems. The result of the study is a high ratio (greater than 100) gearbox with smaller diameters (less than 5 cm), high efficiency and dense transmission torque. This paper compares the present day technologies of the gearbox, the results of their calculated efficiencies.