Some secondary effects which can influence the operation of self-acting gas-lubricated bearings are analyzed, i.e., effect of the inertia forces, thermal effects, turbulence, and effect of the molecular character of the flow. In order to point out their qualitative influence as well as the conditions in which such influences can be important, the case of infinitely long bearings is considered, but for the computation of quantitative effects, the real case of finite bearings is used.Contributed by the ASLE Technical Committee on Bearings and Bearing Lubrication and presented at the Annual Meeting of the American Society of Lubrication Engineers held in Chicago, Illinois, May, 1964.