A journal bearing has a clearance of 0.5 mm. The journal has a diameter of 100 mm and rotates at 3600 rpm within the bearing. The journal is lubricated by an oil having a density of 800 kg/m3, a viscosity of 0.01 kg/ms, and a thermal conductivity of 0.14 W/(m K). If the bearing surface is at 60?C, determine the temperature distribution in the oil film assuming that the journal surface is insulated.GIVENA journal bearingDiameter (D) = 100 mm = 0.1 mClearance (H) = 0.5 mm = 0.0005 mRotational speed (ω) = 3600 rpmOil propertiesDensity (ρ) = 800 kg/m3Viscosity (μ) = 0.01 kg/msThermal conductivity (k) = 0.14 W/(m K)Temperature of bearing surface (Tb) = 60?CASSUMPTIONSSteady stateUniform and constant bearing surface temperatureConstant fluid propertiesThe journal surface is insulated (negligible heattransfer)

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Bearing Joumal D÷0.1 m H= 0.0005 m T- 60°C