Dr inż. Jacek Przepiórka graduated in 1994 from the Faculty of Materials Science and Footwear Technology at the University of Engineering in Radom. He defended his doctorate in technical sciences in 2020 at the Lodz University of Technology. He is currently working as an assistant professor at the University of Technology and Humanities in Radom. Specialization - tribology of metal-polymer friction pairs, maintenance-free plain bearings.