Self-increasing centrifugal clutch

* High efficiency with a self-increasing effect
* Performance factor of 2.5
* Compact design

Construction and mode of operation

The flyweights are seated on the profiled hub and are held against it by tension springs, which are hooked into the linings. Discs locate the flyweights axially. Each lining has a crimping on its inner surface to locate it on the flyweight. This prevents the linings from moving sideways. As the profiled hub rotates, the centrifugal force acting on the flyweights overcomes the spring force. When the speed is high enough, the linings contact the clutch drum, and friction between the linings and the drum allows torque to be transmitted between the two.