NAO Formula Automobile Brake Linings , Drum Friction Brakes NAO Material

Friction Brake Linings - Drum Friction Braking

How drum brake lining work ?

When the driver steps on the brake pedal, the power is amplified by the brake booster (servo system) and changed into hydraulic pressure (oil-pressure) by the master cylinder. The pressure reaches the brakes on the wheels via tubing filled with brake oil (brake fluid). The delivered pressure pushes the pistons on the brakes of the four wheels. The pistons press the brake linings, which are friction materials, against the inside surfaces of the brake drums which rotate with the wheels. The linings are pressed on the rotating drums, which in turn decelerate the wheels, thereby slowing down and stopping the vehicle.

BAIYUN Friction Brake Linings

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What is Drum Brake Linings?

Drum brake lining is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum. Drum braking linings have brake drums that rotate with the wheels.

Brake shoes fitted with brake linings (friction material) which press against the drums from the inside to generate braking force (decelerate and stop) are set inside of the drums.

With this system, friction is generated by pressing the brake linings against the inside surfaces of the drums. This friction converts kinetic energy into thermal energy. Drum rotation helps to press the shoes and the lining against the drum with more force, offering superior braking force in comparison with disc brakes. On the other hand, it is very important to design the components so that the heat from the thermal energy is dissipated efficiently into the atmosphere.

Structure of drum braking

Drum brake are a brake system with brake drums (rotor) which rotate with the wheels. Inside each drum are brake shoes fitted with brake linings (friction material). Pistons (pressure mechanism) press against the drums from the inside to generate braking force, thus making is possible to decelerate and stop the vehicle.

Friction Materials of Friction Brake Lining

1, Friction Raw Material

2,Types of friction materials

*1 Sintered alloy: The phenomena where the particles of powder material join together and turns into a solid substance by pressurizing and fabricating the powder material and heating it at temperatures below the melting point. Material that is not made by melting metal, but instead by sintering metal powders is called sintered alloy.
*2 C/C composite: Carbon fiber reinforced carbon composite. Carbon composite material has been strengthened with carbon fiber. It is extremely thermally stable and lightweight. This material is often used for brake rotors and brake pads for aircraft and racing cars.

3, Friction Material of Baiyun


4, Manufacturing process of friction materials

About BAIYUN

Zhengzhou Baiyun Industrial Co., Ltd., is one of the leading auto friction braking enterprise in China, Top 10 enterprises of China Friction Material Industry and member of friction industry association. Baiyun has passed ISO9001 Quality Management System and IATF16949 Auto Industry Quality System Certification. Long-term cooperation is established with international authoritative test organizations such as America LINK and GREEN to test Baiyun brakes regularly. There are more than 1000 models brakes of Baiyun have obtained E-mark certification till now.

Description of BAIYUN Drum Brake Linings

Model List of Baiyun Drum Brake Linings

Advantage of BAIYUN Drum Truck Brake Linings