In a previous paper (6) it was shown that a viscosity gradient across an oil film allowed a hydrodynamic load to be carried between contra rotating discs. If there is a temperature (and viscosity) gradient, not only through the oil film but also in the direction of motion, a considerable load can be borne. The equations are set up and solved numerically giving coefficient for oil film thickness and friction. The oil film thickness is comparable (three quarters) of that carried by Michell pads. The computed results are applied to the parallel surface thrust bearing described by Fogg (2) in 1946 and shown to give tolerable agreement with the experimental findings.Contributed to the American Society of Lubrication Engineers by the author.