Justin Frohock is working as a Research & Development Engineer at Sumitomo Machinery Corp. of America in Chesapeake, VA. He has a B.S. degree in Mechanical Engineering from Old Dominion University. He has 11 years of experience designing, developing, and testing geartrains in multiple industries, and holds two U.S. patents.
Steel, iron, and aluminum are the dominant materials in the mechanical power transmission industry for good reason: high power density requires the high strength and stiffness of metallic materials. Plastics, however, offer valuable features that should be utilized for good gearbox design.
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