In light of increasingly stringent environmental regulations and rising sustainability requirements, natural refrigerants are emerging as a key technology for next-generation refrigeration applications and heat pumps. Oil-free spiral-groove bearings are ideally suited for this transition and offer outstanding efficiency, reliability, and long-term stability without contaminating the refrigerant circuit with lubricants such as oil. Thanks to their non-contact design, they are particularly well-suited for applications using R290 (propane), R1270 (propene), R729 (air), and R728 (nitrogen), enabling highly efficient and sustainable compressor solutions. Additional refrigerant options and customized solutions are available upon request.