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The main bearing of a steam engine is 100 mm in diameter and 175 mm long. The bearing supports a load of 28 kN at

The main bearing of a steam engine is 100 mm in diameter and 175 mm long. The bearing supports a load of 28 kN at 250 r.p.m. If the ratio of the diametral clearance to the diameter is 0.001 and the absolute viscosity of the lubricating oil is 0.015 kg/m-s, find 
1. The coefficient of friction: and 
2. The heat generated at the bearing due to friction.

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