Until his retirement in 2012, Prof. Dr.-Ing. Wolfgang Predki served with distinction as Head of Chair for Mechanical Components, Industrial- and Automotive Power Transmission (LMGK) at Ruhr-University Bochum since 1992.Upon receiving his doctorate in 1982, Predki began work at the former Flender AG. His last position was as Head of Engineering, where he was responsible for worm, standard- helical, and planetary gears. In his 20 years as a professor Predki supervised many dissertations, published countless reports, and headed the DIN and FVA working groups for worm gears