The experimental spiral oil wedge sleeve bearing is shown in Fig.2, and it has three arc oil grooves and the bearing has oil feed holes and oil return holes at both ends of each recess. The primary parameters of the bearing are given as follows; spiral angle yS is 30° bearing radius R is 50. 0155 mm; bearing clearance c is 0. 035 mm; bearing width is 110 mm; depth of the arc groove /eq is 0. 12 mm; oil groove width is 90 mm; the distribution of oil viscosity at different temperatures is shown in Fig.3; oil density p is 876. 5 kg • m ; the
angle of oil cavity is 80°. Three oil grooves, oil feed holes and oil return holes of journal bearing are shown in Fig.2.