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Brand Name : | Jekit |
Model Number : | brake disc and bell |
Price : | Factory direct price |
Payment Terms : | T/T, Western Union,paypal |
Supply Ability : | 99set |
Delivery Time : | 5-8 work days |
Jekit Car Brake Parts Customized Bell 330*28mm Drilled Line Disc
Product parameter
Product Name | Car brake disc and bell |
Disc size | 330*28mm |
Bell type | Customized |
Fit For | 17 inch wheel |
Quality | 100% Tested |
Application | Auto Part |
Full set included | 1 pair brake disc /1 pair bell / 1 set bolts |
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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