IMPULSE-PIN

The impulse-pin is the ruby component on the balance shaft.

This component, also known as roller-pin, is the element that comes into contact with the fork of the pallets and creates the release and then receives the impulse to maintain the amplitude of the balance wheel at the desired level.

The impulse-pin is also the component that bounces off the wrong side of the pallets when the amplitude is too high and the knock defect appears.