An experimental investigation of the effect of groove location and supply pressure on the THD performance of a steadily loaded journal bearing

This paper aims to present the results of parametric experiments carried ou t in order to study the influence of groove location and supply pressure on the performance of a steadily loaded journal bearing with a single-axial g roove. Hydrodynamic pressure and temperature distributions on the bush surf ace, shaft temperature, flow rate and bush torque were measured at variable supply pressure, using bushes with a single groove load and rotational spe ed. The experimental evidence shows that some bearing characteristics are s ignificantly sensitive to changes in groove location and supply pressure. O ne groove located at 30 degrees in relation to the load line, in the direct ion of shaft rotation, can conduct to reductions in maximum temperature, ma ximum hydrodynamic pressure and bush torque, with a moderate increase in oi l flow rate.