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Recently, there has been rapid growth in research and innovation in natural fiber composites. The main reasons for the interest on these reinforcements over synthetic fiber reinforcements are their low environmental impact, low cost, and high flexural strength, which supports their potential across a wide range of applications. One of the promising applications of polymeric composite is polymeric gears, used in power and motion transmission work under different loads and speeds. In this work, polymeric spur gears are manufactured with various reinforcements like glass, sisal, and flax fiber in 15% and 20% weight percentage, and the gears are produced by molding process. The performance and wear of the gears are tested using a dynamic testing procedure. The tested gears are analyzed for modifications in tooth profile using scanning electron microscope. The weight loss as well as the thermal capability is studied using a contactless infra-red temperature (FLIR) camera. From the result, it is understood that the natural fiber-reinforced gears can be used for smooth and noiseless operation especially in intermittent applications.

Experimental Study on Dynamic and Thermal Behaviour of Chopped Glass, Sisal, and Flax Fiber-Reinforced Gears