Abstract
As technical requirement for compaction of a reducer, we developed a high accuracy and low cost plastic micro reducer. This is used for very small information products, for example mobile-computer. The reducer is composed of three-stage gear train with a module of 0.1. With very fine EDM, the accuracy of the gear shape was improved, and the velocity fluctuation ratio reduced. In this paper, we would like to explain the technology of high accuracy and long operating life of this reducer using micro gears.
