Mechanical transmission components such as gears, rolling element bearings, CVTs, belts, chains, etc. are present in every industrial sector and range from nano-gears to multi-MW size gearboxes. Over recent years, increasing competitive pressure and environmental concerns have provided an impetus for cleaner, more efficient and quieter units. Moreover, the emergence of relatively new applications such as wind turbines, hybrid transmissions, jet engines, etc., has led to even more severe constraints. The main objective of this conference is to provide a forum for the most recent advances, addressing the challenges in modern mechanical transmissions.