# A centrifugal friction clutch has a driving member consisting of a spider carrying four shoes…

A centrifugal friction clutch has a driving member consisting of a spider carrying four shoes which arekept from contact with the clutch case by means of flat springs until increase of centrifugal forceovercomes the resistance of the springs and the power is transmitted by the friction between the shoesand the case.Determine the necessary mass and size of each shoe if 22.5 kW is to be transmitted at 750 r.p.m.with engagement beginning at 75% of the running speed. The inside diameter of the drum is 300mm and the radial distance of the centre of gravity of each shoe from the shaft axis is 125

A centrifugal friction clutch has a driving member consisting of a spider carrying four shoes which arekept from contact with the clutch case by means of flat springs until increase of centrifugal forceovercomes the resistance of the springs and the power is transmitted by the friction between the shoesand the case.Determine the necessary mass and size of each shoe if 22.5 kW is to be transmitted at 750 r.p.m.with engagement beginning at 75% of the running speed. The inside diameter of the drum is 300mm and the radial distance of the centre of gravity of each shoe from the shaft axis is 125 mm. Assumeµ = 0.25.

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