The article discusses the significance of gas foil bearings in fuel cells to enable the shift from fossil fuels to renewable energies. Traditional oil lubricants are unsuitable due to the risk of contaminating the oxygen required for the fuel cell reaction. The focus is on innovative conical gas foil bearings developed by Marian Sarrazin to streamline production and assembly processes. By changing the shaft geometry to conical, the bearing system becomes more efficient, requiring only two bearings instead of four, thereby reducing complexity and material usage. These conical gas foil bearings are a novel concept, requiring testing to ensure their functionality and effectiveness. Sarrazin conducts experiments to determine the optimum speed for the air film to form, critical for proper lubrication in high-speed applications. The article emphasizes the importance of numerical simulations and practical experiments to validate the performance of conical gas foil bearings, highlighting the role of workshops and test benches in facilitating research and industry collaboration at TU Berlin.