The viscous heat of gas bearings and heat generated by the motor cause a large temperature difference between the bearing surface and lubricating gas influencing the bearing performance in gas-bearing applications. This study investigated the effects of the bearing surface temperature and supply gas temperature on the static characteristics of a six-orifice externally pressurized gas thrust bearing under air, CO₂, and R22 lubrication, numerically and experimentally. The results show that the load increases as the bearing surface temperature increases, while the static stiffness increases at first but decreases later. In contrast, the load and static stiffness decrease with increasing supply gas temperature. The findings can provide insights on designing gas bearings using refrigerant gases.

气体轴承的粘性热和电机产生的热量会导致轴承表面和润滑气体之间存在较大温差，从而影响气体轴承应用中的轴承性能。本研究通过数值和实验研究了轴承表面温度和供气温度对空气、CO ₂和 R22 润滑下六孔外压气体推力轴承静态特性的影响。结果表明，载荷随着轴承表面温度的升高而增大，而静刚度先增大后减小。相反，载荷和静态刚度随着供气温度的升高而降低。这些发现可以为使用制冷剂气体设计气体轴承提供见解。