Question 3 A full journal bearing is required for a shaft with a nominal diameter of 50 mm rotating at 2800 rpm. The load on the bearing is 2600 N. The system specifications are: Lubricant type SAE 10 Inlet Temperature 40°C L/D Initial lubricant temperature rise Diametrical clearance 0.5 30°C 0.08 mm Using the design charts method (Raimondi & Boyd) to calculate: 3.1 The overall temperature rise of the lubricant, 3.2 The total lubricant flow rate required. 3.3 The torque required to overcome friction and 3.4 The heat generated in the bearing. (20) (1) (1) (1) (Note: In answering the above questions, state from which figure each value in your calculations was taken from and Show all your calculation steps.) [23] 23