Brief Introduction to Chengdu Brake Drums

The brake drum, also known as the brake shoe or brake drum, is a cast iron component resembling a tambourine. It is fixed to the tire and rotates at the same speed. During braking, hydraulic pressure pushes the brake shoes to contact the inner surface of the drum. The resulting friction slows the tire's rotation, achieving the braking effect. Simply put, the brake drum resembles a metal drum or small barrel fitted over the wheel hub, with its base rubbing against the vehicle's wheel hub during braking to bring the car to a stop.

The brake drum is a crucial component of the drum brake system, with its inner surface being the location where the braking force is generated. To achieve the same braking torque, the diameter of a drum brake's drum can be significantly smaller than that of a disc brake's rotor. Therefore, large commercial vehicles requiring robust braking power must install drum brakes within the limited space of their wheel hubs. Drum brake systems are typically fitted to the rear wheels of heavy-duty vehicles.