What is the function of a brake disc? What is the function of a car brake disc

To put it simply, a brake disc is a round disc that rotates with the car when it is moving, and it works with the brake calipers and brake pads. When we apply the brakes, we rely on the brake calipers and brake pads to clamp the brake disc to slow down or stop.

The brakes currently have disc brakes, drum brakes and air brakes, and many older cars have front and rear drums. Many of today's cars have disc brakes front and rear. Because the disc brake has better heat dissipation than the drum brake, it is not easy to produce thermal decay in the high-speed braking state, so its high-speed braking effect is good.

However, at low speed cold brakes, the braking effect is not as good as drum brakes. **More expensive than drum brakes. Therefore, many middle and high-end cars now use full disc brakes, while ordinary cars use front disc and rear drums, while relatively low-speed, and need large braking power for trucks and buses, still use drum brakes.

The brake disc provides friction surface to the brake pads and produces friction with the brake pads, so as to ensure driving safety. 1.When the brake disc is provided with the friction surface of Li Shouhe, it will also be worn, and when it is worn to the limit value, it must be replaced in time.

The brake disc is too thin and will break in case of emergency braking. Because when stepping on the brakes, the friction between the brake disc and the brake blade generates a lot of heat, coupled with strong friction, the brake disc that is too thin cannot withstand too much torsion, and it will break. 2.

The vehicle generally needs to replace the brake pads for about 60,000 kilometers, and at the same time of replacing the brake pads, the brake disc should be checked, and if the brake disc table is uneven, the brake disc should be smoothed. In this way, the braking performance is not affected. Different brake disc wear limit values are different, and different driving habits have different brake disc wear values.

For example, for people who often drag race, brake discs and brake pads are quickly damaged.

Installing a car's front brake disc requires a certain amount of professional knowledge and skills. To ensure safe and proper installation, I recommend that you seek the guidance or service of a professional auto repair technician or vehicle manufacturer. The following are the steps to install the brake disc in general, but please note that this is for reference only and the specific steps may vary depending on the vehicle model and manufacturer:

1.Preparation: Make sure the vehicle is parked and use the appropriate tools to raise and stabilize the vehicle so that the work can be carried out. At the same time, prepare the required tools and installation materials in advance.

2.Preliminary steps: First, remove the wheels and remove the caliper from the brake disc. It is generally necessary to remove the clamp bolts and carefully place the clamps against other parts of the vehicle to avoid damage to the brake hoses.

3.Brake disc removal: Using an appropriate tool, such as a screwdriver or wrench, remove the screws or bolts that hold the brake disc in place. Then carefully remove the old brake disc, making sure not to damage other parts.

4.Install the new brake discs: Place the new brake discs in the correct position, making sure the disc surfaces are aligned with the hubs. Then use the screws or bolts again to secure the brake disc in place.

5.Clamp Installation: Carefully place the brake calipers back in the correct position and make sure the calipers are installed correctly. Reinstall the clamp bolts and tighten them according to the correct torque specifications.

6.Next steps: Install the return wheel and make sure the bolts are properly tightened. Then, gradually lower the vehicle, make sure the vehicle is stable, and carry out a check on the brake system. After installation, remember to test and adjust the braking system before starting the vehicle.

Please note that the above steps are general guidance only and may have different installation requirements and procedures depending on the vehicle model and manufacturer. To ensure proper and safe installation, seek the guidance or service of a professional technician or vehicle manufacturer, or refer to the applicable vehicle service manual.

The wheels are always turning while the car is moving, and there is a metal ring behind each wheel, which we call the brake disc. It rotates at the same speed as the wheels, when we want to stop the car, we will press the brake pedal with our feet, the brake pedal is connected to a lever, the lever pushes a metal bar with a spring, when the spring is squeezed, a special liquid called brake fluid will be released, the brake fluid flows along the pipe to the wheels, and then flows into the calipers, so that the brake pads press on the brake disc, slow down the brake disc, until the wheels and the car no longer move.

There are two types of brake discs in terms of structure, namely solid brake discs and ventilated brake discs.

The physical brake disc is a metal disc used for brakes, with a simple structure and low cost. The biggest problem is that it barely has any heat dissipation. Because the car is in the process of braking, the body is subjected to the action of inertia, there is still a forward impulse, at this time the weight of the body will gather to the front wheels, if the front wheel uses a solid disc, it will affect the braking effect due to the heat generated by the brake, so the main role and position of the solid brake disc is generally on the rear wheel of the car.

Ventilated brake discs, also known as air-cooled brake discs, are an advanced version of physical brake discs. It has a number of small openings on the sides that allow the passing airflow to take away the heat, and the design is simple and effective.

It is divided into two forms, namely the marking disc and the open disc, both of which are used to improve the cooling performance of the brake disc, reduce its thermal attenuation degree, and provide better braking ability. Because the brake disc is used to provide the friction surface required for friction braking to the brake pads, the brake disc will gradually wear out and become thinner during use, and the hardness, heat resistance and wear resistance of the thinned brake disc will be reduced, which may affect the braking effect.

The brake disc of the car is to assist the brake pad to do a brake, and then during the driving process, if the brake disc is worn, uneven or in the groove, it may cause the braking distance to be extended, and we step on the brake during driving, it may cause brake shake and steering wheel shake. That's why we check the brake discs and pads regularly.

Of course, it plays a role in controlling the speed of the car, and can also play a role in timely braking, which is a very important part in the braking link and is indispensable.

The brake disc of a car is very important for a car, it can block the engine transmission, can brake, can play the role of deceleration or stopping. It is an indispensable part of the braking system, which is very important and related to the safety of our lives.

Brake pads and brake discs are two different parts, the brake disc rotates with the rim, and the brake pads are fixed on the brake caliper. The braking system of a car is very important for driving safety. The main components of the braking system are vacuum booster pump, brake master cylinder, brake cylinder, brake pad, brake disc.

Brake pads are two different parts, the brake disc rotates with the rim, and the brake pads are fixed to the brake caliper.

The braking system of a car is very important for driving safety.

The main components of the braking system are vacuum booster pump, brake master cylinder, brake cylinder, brake pad, brake disc.

After the driver presses the brake pedal, the vacuum booster pump provides a boost, which helps the driver to press the brake pedal together.

When the brake pedal is pressed, the brake master cylinder will push the brake cylinder through the brake fluid, and the brake cylinder will push the brake pads to clamp the brake disc, which can convert kinetic energy into heat energy so that the car can slow down.

The brake cylinder is what we usually call the brake caliper, which has a piston in it, and the piston can push the brake pads.

Brake pads and brake discs are wearing parts that need to be replaced regularly, and it is recommended that riders replace them on time, otherwise it will affect the braking force of the car.

The brake fluid of the brake system also needs to be changed on time, and this fluid is something that many riders will ignore.

Brake fluid is a liquid that easily absorbs water, and if you don't change the brake fluid for a long time, the water content of the brake fluid will be too high, which will affect the braking force.

When the moisture content of the brake fluid reaches 3%, it should be replaced immediately.

When changing the brake fluid, it is recommended that you go to the 4S shop to change it.

Photo by Pacific Automobile Network Q&A).

Many car owners know that when a car brakes, it needs to work with brake discs and brake pads, so what is the difference between brake pads and brake discs?

1. The shape of the brake pad and the brake disc are different, the brake pad is a long strip of sheet parts, and the brake disc of the car is a large disc part.

2. The operation method of brake pads and brake discs is different, the brake pads of the car are fixed, while the brake disc of the car is installed on the tires and will rotate with the rotation of the tires.

3. The replacement time of brake pads and brake discs is different, and the brake pads generally need to be replaced when the car travels more than 30,000 kilometers, and the cycle of brake disc replacement will be longer, and it is generally not seriously worn or deformed, and there is no need to replace the brake disc.

When the car is braking, the brake pads will be tightly attached to the brake disc, thereby increasing friction and achieving the purpose of emergency braking of the vehicle. Car owners need to regularly check the vehicle's brake pads and brake discs, and replace them in time if there is a problem to avoid affecting the vehicle's braking and bringing potential safety hazards.