Aluminum 6061 Bell Car Brake Parts Disc 330*28mm 17in Wheel

Product Description

Jekit Car Brake Parts Customized Bell 330*28mm Drilled Line Disc

Product parameter

product description

The brake disc, which rotates when the car is moving. The brake caliper clamps the brake disc to generate braking force. When the brake is stepped on, it clamps the brake disc to slow down or stop. The brake disc has good braking effect and is easier to maintain than drum brakes. The modified brake discs are optimized and upgraded on the basis of integrated brake discs, which have better braking performance, heat dissipation and construction. . .

There are disc brakes, drum brakes and air brakes. Older cars have front and rear drums. Many cars have disc brakes both front and rear. Because disc brakes have better heat dissipation than drum brakes, they are not prone to thermal decay under high-speed braking, so their high-speed braking effect is good. But at low speed cold brakes, the braking effect is not as good as drum brakes. The price is more expensive than the drum brake. Therefore, many mid-to-high-end cars use full-disc brakes, while ordinary cars use front and rear drums, and relatively low-speed trucks and buses that require a large braking force still use drum brakes.
Drum brakes are sealed and shaped like drums. There are many brake pots in China. It turns when driving. Two curved or semicircular brake shoes are fixed inside the drum brake. When the brake is stepped on, the two brake shoes are stretched out under the action of the brake wheel cylinder, supporting the brake shoes to rub against the inner wall of the brake drum to slow down or stop.

Material requirements
The material of the brake disc is the gray cast iron 250 standard of our country, referred to as HT250, which is equivalent to the American G3000 standard. The requirements for the three main elements of the chemical composition are: C: 3.1∽3.4 Si: 1.9∽2.3 Mn: 0.6∽0.9. Mechanical performance requirements: tensile strength>=206MPa, bending strength>=1000MPa, deflection>=5.1mm, hardness requirements between: 187∽241HBS. .

According to the structure, brake discs are divided into physical brake discs and ventilated discs. A physical brake disc is a metal disc used for braking, and has no special structure. The ventilating disc is divided into two forms, namely the scoring disc and the perforated disc. The two treatment methods are used to improve the cooling performance of the brake disc, reduce its thermal attenuation, and provide better braking ability.
Brake discs are divided into carbon fiber ceramic brake discs and metal brake discs according to their materials. However, due to the excessively high manufacturing cost of carbon fiber ceramic brake discs and poor braking force at low temperatures, although they have excellent thermal attenuation characteristics, they are still Not used by most vehicles. In order to increase the resistance to thermal attenuation, some manufacturers apply carbon fiber treatment to metal brake discs to improve their capabilities while avoiding the problem of poor low-temperature performance of carbon fiber ceramic materials. At this time, there is a gray cast iron brake disc, which has the advantages of high performance and low price at the same time.

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