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Question:

A single plate clutch, effective on both sides, is required to transmit 25 kW at

3000 rpm. Determine the outer and inner radii of frictional surface, if the

co-efficient of friction is 0.255 the ratio of radii is 1.25 and the maximum

pressure is not to exceed 0.1 N/mm 2 . Also determine the axial thrust to be

provided by springs. Assume the theory of uniform wear.

Answer: