Bi directional bending fatigue and static transmission characteristics of polymer composite gears

Abstract

Polymer and polymer composite gears nowadays substitute metal gears for medium load applications In some applications such as actuators of satellite launcher the gears experience bi directional loads In the present study bi directional ratio of minimum to maximum stresses stress ratio R 239 8364 173 1 and uni directional R 0 bending fatigue performance of injection molded unreinforced and carbon fiber reinforced polyamide 66 gears were evaluated using in house developed gear test rig Tests