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Centrifugal Clutch Design and Equations

Machine Design and Application

Centrifugal Clutch Design and Equations

Internally expanding friction shoes are held in contact, by the force due to rotation against the force of a light spring. The torque capacity increases as the speed increases.

Centrifugal Clutch Design

Torque capacity (2 shoes)

Torque capacity

ω = 2 π N

where:

m = mass of shoe
k = spring stiffness
x = deflection of spring
µ = coefficient of friction
F = radial force on drum
N = rotational speed
ω = angular velocity