An Experimental Study on Strength and Durability of Nylon and Poly-Acetal Gears

Abstract

This paper investigates the fatigue strength and durability of injection molded nylon and poly-acetal spur gears by fatigue test. Accuracy variations and operational characteristics on fatigue life, wear and tooth surface temperature of nylon and poly-acetal gears are compared and represented. The fatigue strength and durability of the two types of gears is also obtained and represented by a function of unit load as well as by a function of K-factor.