Analysis of Possible Concept Solutions of Chain Drives Milan Rackov, Siniša Kuzmanović, Ivan Knežević, Maja Čavić, Marko Penčić, Dijana Čavić and Nicolae Florin Cofaru MATEC Web Conf., 290 (2019) 01018 Published online: 21 August 2019 DOI: 10.1051/matecconf/201929001018