“…The polymers and their composites find very useful applications in automotive components such as gears, cams, wheels, brakes, clutches, bearings, etc. and also in other engineering applications like conveyor aids, chute liners, power, mining, agriculture and other allied fields [2,3]. Polyamide, as the one in the family of engineering plastics, has the advantages of high strength, excellent corrosion resistance, suitable wear resistance and favorable self-lubricating property, has been widely used in the engineering structures [4].…”