A bearing 250 mm in diameter and 250 mm long operates at 1500 rpm, carrying 108,000 N. The c/r ratio is 0.0015. Let the viscosity of the lubricant be taken as 0.000 000 03 N sec/mm2. Find the friction power loss in accordance with Petroff’s equation, for the 360° loaded bearing, and for the 120° central partial bearing.
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