Hrcek, Slavomir, Robert Kohar, Stefan Medvecky, Branislav Krchnavy, and Marcel Caco. 2016. “Determination of the Optimum Preload of Roller Bearings in Terms of Their Life Using Fem”. Communications - Scientific Letters of the University of Zilina 18 (1A), 108-14. http://journals.uniza.sk/index.php/communications/article/view/368.