A Study of Fiber-Filled Plastic Gears : 1st Report, Operating Characteristics of Glass Fiber-Filled Plastic Gears

Abstract

Recently, plastics, filled with various fibers to make fiber-reinforced composites, have been investigated, and their basic properties have been fairly extensively examined. However, the various properties of these plastics when they are applied to gears have scarcely been revealed. In this study, at first, we prepared three kinds of plastic gears with different fiber-filling rations and made running tests to examine abrasion of the teeth, change of the tooth profiles, temperature of the teeth and noise of the gear. Then we, compared these results with the running-test results of the MC nylon gear which had already been reported, to clarify as much as possible the operating characteristics of plastic gears filled with glass fibers.