I guess you call this homework?
A friend Emailed me this and asked if I knew how to work it out.
Th answer was no - do any one help - No teaching involved here my friend is in his 70's.
A car engine has four camshafts each supported by three journal bearings. The engine runs at a maximum of 8000rpm, and the camshafts rotate at half engine speed. Assuming the engine oil to be 40 degrees - Determine the maximum power absorbed by the camshaft bearings. Other data given below
journal bearing = 35 mm
bearing axial length = 20 mm
radial clearance = 0.018 mm
oil grade = vg32
oil density = 890kg m ̅³̇