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In: Mechanical Engineering

(20) A 15kW electric motor, which is running at 43 rev/s, is used to drive a...

(20) A 15kW electric motor, which is running at 43 rev/s, is used to drive a crusher which operates 24 hours per day. An engineer has specified 212 mm and 315 mm pitch diameters for small pulley and large pulley respectively; and C 3454 V-belt type.

a) Calculate allowable power, design power and required number of belts. (Take design factor nd as 1.)

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