AbstractParametric experiments were conducted to analyse the influence of some supply conditions on the performance of a steadily loaded journal bearing. The temperature distribution on the internal surface, the flow rate, and the bearing eccentricity were measured for different sets of operating conditions, under variable supply conditions. Quantitative information was provided which showed the effect of both shaft speed and applied load on maximum bush temperature and flow rate. It was observed that flow rate was moderately affected by load and significantly affected by rotational speed, oil supply temperature, and supply pressure. The maximum bush temperature was moderately affected by supply pressure and load, and significantly affected by shaft speed. For low applied loads, the attitude angle was markedly affected by supply pressure. The experimental results also showed that for a small groove length there was a variation in bush temperature in the axial direction in the groove region.