Kotzalas is chief engineer for the Timken Company’s China business unit in
Shanghai, China. He has been employed at Timken since 1999. He has
extensive experience in practical application of bearings and studied under
Tedric Harris at Penn State University.
Rolling Bearing Analysis 5th Edition, holds two patents on rolling bearings and has received the 2001 Best Paper Award from the ASME Tribology Division, the 2003 and 2006 STLE Hodson Award and the 2007 SAE Off-Highway Outstanding Young Engineer Award.
Dr. Tim Ovaert
Professor of Mechanical Engineering
University of Notre Dame
Dr. Tim Ovaert is currently a professor of Aerospace and Mechanical Engineering at the University of Notre Dame. In addition to teaching mechanical engineering design, reliability engineering, and tribology, he conducts research on materials characterization, materials for tribological applications, and manufacturing.
His current research interests are in biomechanics, the tribology of advanced
materials, mechanical design, and manufacturing. Tim Ovaert received his BS
degree in Mechanical Engineering from the University of Illinois-Urbana and his
Master of Engineering Management and PhD in Mechanical Engineering from
Northwestern University. His industry experience includes serving as Plant
Engineer at the DuraBar Division of Wells Manufacturing Company. Previously, he
was Professor of Mechanical Engineering at Penn State.
Vern Wedeven has led the development of custom tribology research and testing capabilities at Wedeven Associates, Inc over its twenty-five year history. The focus is to explore the micro-world of tribology mechanisms with useful engineering parameters and measurements providing science meaning. The test machines and test methods have supported the developed of oil formulations and advanced bearing and gear materials in the aerospace industry. He has vast experience in failure analysis and lubrication and failure mechanisms of high speed aero propulsion components. His previous experience and tribology research includes employment at, SKF-MRC Aerospace, NASA Lewis (Glenn) Research Center and NASA Headquarters.
is a graduate of Calvin College (BS), University of Michigan (BSME) and
Imperial College, London, Ph.D. He is
the author of over seventy technical papers in the area of tribology. He has authored chapters in three books and
he holds three patents. He is a Fellow
of STLE and the recipient of several awards: Walter D. Hodson Award (1975) for
best published paper in STLE by an author under age of 35 years, Captain Alfred
E. Hunt Award (1979) for best paper published in STLE, Arch T. Colwell
Cooperative Engineering Metal for contributions of
Grease Technology Solutions, LLC
Mr. Coe holds a BS Chemical Engineering, Pennsylvania State University,
along with NLGI CLGS and STLE CLS professional certifications. He worked for Mobil
and ExxonMobil for 32 years, including 6 years as ExxonMobil’s Grease
Technology Manager and many years as an industrial oil and grease formulator
and technical advisor. He retired from
ExxonMobil and launched Grease Technology Solutions LLC, a grease training and
consulting business in 2009.