At present, in the braking system of automobiles, camshafts are commonly used to control the opening and closing of brake shoes. When the brake shoes open, the friction pads come into contact with the brake drum to achieve the braking effect. From this, it can be seen that the driving of the brake shoes of a car is achieved through the camshaft, and the cam edge profile on the camshaft directly affects the braking effect of the car.
