Urbanský, MatejGrega, RobertŽuľová, LuciaKrajňák, Jozef2025-10-1620251337-8996https://drepo.uniza.sk/handle/hdluniza/1338In our workplace, we deal with research of pneumatic flexible shaft couplings in the long term. Our main goal is to minimize dangerous torsional vibration in mechanical systems, using pneumatic flexible couplings as torsional vibration active tuners. Therefore, many pneumatic couplings prototypes have to be manufactured and tested. In this article, two new prototypes of pneumatic flexible shaft couplings and their expected properties are presented. The couplings were manufactured according to granted patents.otherpneumatic flexible shaft couplingsprototypespatentspropertiesArticlehttps://doi.org/10.26552/tech.C.2025.3.5