Jože Tavcar works as a senior lecturer in the LTH, product development division at Lund University, Sweden. He was awarded with Ph.D. degrees in mechanical engineering from the University of Ljubljana in 1999. During his period in industry he was involved in several product-development teams with international corporations such as Philips, Electrolux, Kärcher, Rowenta, and automotive companies. He co-ordinated the development of the motors’ diagnostic system and he gained a deep understanding of the noise-reduction and vibrations topics. He published over 35 SCI papers, over 50 conference papers, 5 book chapters and over 80 technical reports. Several of them are related to polymer gears. He has coordinated several application and research projects.