Are the front brake discs the same as the rear brake discs？
unlikeness
The front brake disc is different from the rear brake disc.
The main difference between front and rear brake discs is size and design. The front brake disc is usually larger than the rear brake disc because when the car brakes, the center of gravity of the vehicle will shift forward, resulting in a sharp increase in pressure on the front wheels. To cope with this pressure, the front wheel brake discs need to be larger in size to provide greater friction, thus increasing braking effectiveness. In addition, the larger size of the front wheel brake disc and brake pads means that more friction can be generated during braking, thus improving the braking effect. Since the engine of most cars is installed in the front, making the front part of the heavier, when braking, a heavier front means more inertia, so the front wheel needs more friction to provide enough braking force, which is also one of the reasons for the larger size of the front brake disc.
On the other hand, when the vehicle braking, there will be a mass transfer phenomenon. Although the vehicle looks stable on the outside, it is actually still moving forward under the action of inertia. At this time, the center of gravity of the vehicle moves forward, the pressure on the front wheels increases suddenly, and the faster the speed, the greater the pressure. Therefore, the front wheel needs a better brake disc and brake pads to ensure that the vehicle can stop safely.
To sum up, the front brake disc is wearing faster than the rear brake disc, mainly due to inertia and vehicle design considerations, so that the front wheel needs more braking force to deal with the pressure and inertia of braking.
How often is it appropriate to change the front brake disc
60,000 to 100,000 kilometers
The replacement cycle of the front brake disc is usually recommended between 60,000 and 100,000 km. This range can be adjusted according to the individual's driving habits and the environment in which the vehicle is used. For example:
If you frequently drive on the highway and brake use is less, the brake disc may be able to support to a higher number of kilometers.
Driving in the city or complex road conditions, due to frequent start and stop, brake disc wear will be faster, may need to be replaced in advance.
In addition, the replacement of the brake disc should also consider its wear depth, when the wear exceeds 2 mm, it should also be considered for replacement. Regular vehicle maintenance checks can help owners better grasp the actual condition and replacement time of the brake disc.
The front brake disc is more worn than the rear brake disc
The front wheels bear a greater load during braking
The main reason why the front brake disc is more severely worn than the rear brake disc is that the front wheel bears a greater load during braking. This phenomenon can be attributed to the following:
Vehicle design: Most modern vehicles adopt a front-front-drive design, in which the engine, transmission and other major components are installed in the front of the vehicle, resulting in an uneven distribution of the weight of the vehicle, usually the front is heavier.
Braking force distribution: Due to the heavier front, the front wheels need to withstand more braking force when braking to ensure the stability and safety of the vehicle. This causes the front brake system to require more braking power, so the size of the front brake disc is usually designed to be larger.
Mass transfer phenomenon: During braking, due to inertia, the center of gravity of the vehicle will move forward, further increasing the load on the front wheels. This phenomenon is called "brake mass transfer" and it causes the front wheels to bear a greater load when braking.
To sum up, due to the above factors, the load borne by the front wheel during braking is much greater than that of the rear wheel, so the wear degree of the front brake disc is more serious.
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