Auto brake drum：Steel
The scientific name of the brake hub is the brake drum, which is the main component of the drum brake system. The friction between the inner surface of the brake drum and the brake pads during the braking function. The brake drum is a cast iron piece shaped like a tambourine, which is fixed to the tire and rotates at the same speed.
High quality auto spare parts include brake system brake drum for European and American market,and also including Asia,middle-east market,south america in various quality;
Mill-balanced for proper rotor function, no extra weights are needed
Drums are inspected for balance; resulting in smooth brake operation and noise reduction
Quality validated for proper metallurgy and correct brake plate thickness
Non-directional brake surface finish for consistent braking
Integral casting The brake drum is integrally cast from high-strength gray cast iron or alloy cast iron containing Cr. This brake drum has a simple structure, convenient processing, and large heat capacity, but has a large mass, and is mostly used for medium and heavy vehicles.
Combination of steel plate and cast iron The brake drum is composed of a steel plate stamped drum plate and a cast iron drum ring, which has a small mass and is mostly used for cars and light cars.
Combination of light alloy and cast iron The main body of the brake drum is a light alloy material (such as aluminum alloy), which is lined with a cast iron ring. This kind of brake drum is not only small in weight, but also good in heat dissipation, and is mostly used in cars.
When braking, oil pressure is used to push the brake shoes to contact the inner edge of the brake drum, and the friction generated by the contact is used to suppress the rotation of the tire to achieve the purpose of braking. Generally speaking, the brake hub is like a metal drum or a small bucket that is placed on the hub, and the bottom of the bucket is rubbed against the hub of the car to stop it when braking.
The brake drum is an important component of the drum brake system. The inner surface of the brake drum of the drum brake is where the braking device generates a braking torque. With the same braking torque, the diameter of the brake drum of a drum brake device can be much smaller than that of a disc brake. Therefore, in order to obtain a powerful braking force, a large vehicle used for loading can only install a drum brake in a limited space of a rim. Drum brake systems are typically installed on the rear wheels of large vehicles.