Experimental comparison of the performance of a journal bearing with a single and a twin axial groove configuration

► First experimental comparison of single/twin axial groove journal bearings. ► Individualized measurement of flow rate through each groove. ► Total flow rate was the same, twin groove flow distribution dependent on load. ► Twin groove might be problematic for high eccentricity+low feeding pressure. ► Twin groove-higher power loss, outlet temperature; lower maximum bush temperature.