QUESTION 5 [25 Marks] A full hydrodynamic journal bearing of 80mm diameter and length to diameter ratio l/d of 1.0. supp
Posted: Tue Jun 07, 2022 5:33 pm
QUESTION 5 [25 Marks] A full hydrodynamic journal bearing of 80mm diameter and length to diameter ratio l/d of 1.0. supports a load of 3kN. Its operating speed is 480 rpm and the radial clearance is 0.04mm. The lubricant used is SAE 30 oil with supply temperature of 60° C. Find: the minimum film thickness, the maximum pressure, the friction coefficient, the lubricant temperature rise, the power loss, the heat loss rate, the lubricant side-flow rate and the oil flow rate to and for this bearing.