Problem 1 (25 points) A journal bearing of L = 1 in., D = 3 in., and a diametral clearance of 0.003 in. supports a 1500-lb load while rotating at 1500 rpm. SAE 10 oil is used, with an average film temperature of 130°F. Please show all your work and markings on the attached Raimondi and Boyd Design Charts. D = 3.0 in. R = 1.5 in 1500 lb SAE 10 oil Tavg = 130°F n = 1500 RPM c = 0.0015 in. L= 1.0 in. 1) Determine the Sommerfeld variable (S, bearing characteristic number) for this journal bearing. 2) Using the Raimondi and Boyd Design Charts, estimate: (a) minimum oil film thickness, (b) coefficient of friction, (c) maximum film pressure, (d) angle between load direction and minimum film thickness, (e) angle between load direction and termination of film, (f) angle between load direction and maximum film pressure, (g) total circumferential oil flow rate, (h) side or leakage flow rate.