Operating Characteristics of Super Engineering Plastic Gears : 2nd Report, Aramid Gears

Abstract

As described in the 1st report on this study, polyimide gears showed excellent characteristics in a high-temperature environment ; however, they had the demerit of being fairly expensive. Recently, an aramid has been marketed which is a plastic having high strength and heat resistance comparable to those of a polyimide. This plastic is available for about 80% of the cost of polyimide, so it appeared applicable for practical use as a gear material. It is described in this report how, as a basic study to obtain design data for aramid gears, operating tests have been carried out for them in two atmospheric environments at room temperature and high temperature, and various characteristics have been investigated in each environment.