Q-1 A pressure-fed bearing has a journal diameter of 50.00 mm with a unilateral tolerance of -0.05 mm. The bushing bore

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Q 1 A Pressure Fed Bearing Has A Journal Diameter Of 50 00 Mm With A Unilateral Tolerance Of 0 05 Mm The Bushing Bore 1 (43.77 KiB) Viewed 11 times

Q-1 A pressure-fed bearing has a journal diameter of 50.00 mm with a unilateral tolerance of -0.05 mm. The bushing bore diameter is 50.084 mm with a unilateral tolerance of 0.10 mm. The length of the bushing is 55 mm. Its central annular groove is 5 mm wide and is fed by SAE 40 oil is 55°C at 220 kPa supply gauge pressure. The journal speed is 2880 rev/min carrying a load of 12 kN. The sump can dissipate 300 watts per bearing if necessary. For minimum radial clearances, a) Determine the minimum oil-film thickness, ho; [08 pts.] [08 pts.] b) Temperature rize of the lubricant, ATC and Tave; c) Maximum film pressure, Pmax; [08 pts.] [08 pts.] d) The lubricant side flow, Qs;