Qi Fan, PhD, is a Senior Gear Theoretician and Director of Bevel Gear Technology (China) at The Gleason Works. Dr. Fan currently serves as Chair of the ASME Power Transmission and Gearing (PTG) Committee. Previously, he was an associate professor of mechanical engineering at Wuhan University of Technology in China. Before joining Gleason Works, he was a postdoctoral associate at the Gear Research Center of the University of Illinois at Chicago where he received his PhD degree. He received his M.S. degree in mechanical engineering at Wuhan Transportation University in 1987. Dr. Fan is a recipient of the NASA Tech Brief Award (2004) and the Thomas Bernard Hall Prize (2001) awarded by the Institution of Mechanical Engineers, UK.