Abstract
Since the accuracy of industrial applications are becoming a big issue in the industry, the high performance speed reducers are immense necessary part for the industrial applications such as multi-axis machining centers, robots, special purpose machines and etc. These speed reducers are yet in the developing stage. In this report, a speed reducer driven by roller gear cam mechanism is introduced and the characteristics of that are discussed by comparing them with the characteristics of worm gear mechanism and direct drive mechanism. As the characteristics, the positioning accuracy and repeatability, rotational fluctuations and influence of unbalance mass on motion are presented. Furthermore, two case studies are discussed.
