The difference between front brake disc and rear brake disc.
The brake disc and brake pads of the front wheel are large, which means that the friction generated during the entire braking process is large, which means that the braking effect is better than the rear wheel. The engine of most cars is installed in the front, making the front heavier, the greater the pressure, the greater the inertia. Therefore, the front wheel of the car naturally needs more friction when braking, and the brake disc naturally becomes larger. On the other hand, when the car brakes, the mass will be offset. Although the car looks stable on the surface, in fact, under the action of inertia, the whole car is still moving forward. At this time, the center of gravity of the car moves forward, and the front wheel pressure increases sharply. The faster the speed, the more pressure. Therefore, the front wheel naturally needs a better performance brake disc, and the brake disc can be stopped, but also for the sake of our driving safety. The difference between front brake disc and rear brake disc: 1. Front brake disc, there is actually a lot of knowledge in this, because whenever you need to brake when driving, the car is affected by inertia; 2. The front will press down and the back will tilt up, so that the force on the front tire will increase. At this time, the front tire will need more braking force than the rear tire to make the car stop quickly and smoothly; 3. Rear brake disc, emergency braking, due to the front of the body pressed on the ground, the rear wheel will be lifted. At this time, the contact force between the rear wheel and the ground, that is, the grip is not as large as the front wheel, and it does not need so much braking force.
Does the rear brake disc shake when deformed
will
Rear brake disc deformation may cause brake jitter . Brake disc deformation is one of the main causes of brake jitter, which usually occurs when the brake disc is worn unevenly or impacted by external forces due to long-term use or improper use. The following are the specific causes of brake jitter and solutions:
Cause of brake disc deformation
brake disc partial grinding : the use of spot braking for a long time will lead to uneven surface of the brake disc, which will cause jitter when braking.
engine foot mat aging : the foot mat is responsible for absorbing subtle engine shake, if aging will cause the shake to be transmitted to the cab.
wheel hub deformation : wheel hub deformation may also cause brake jitter, need to check and replace the corresponding side of the wheel hub.
tire dynamic balance problem : after the replacement of the tire is not carried out action balance treatment, resulting in a tire braking force is uneven, causing jitter.
solution
Replace the brake disc : if the brake disc is seriously deformed, a new brake disc should be replaced.
rational use of brakes : avoid using the spot brake for a long time, and use the brake reasonably and properly.
check and replace the machine foot mat : if the machine foot mat aging, should be replaced in time to the professional maintenance point.
Check the wheel hub and tires : regularly check whether the wheel hub deformation, replace the tire after the action balance treatment.
preventive measure
Check the brake system : check the brake disc, wheel hub and other components wear regularly.
Standard use of brakes : Avoid frequent use of the spot brake to reduce the wear of the brake disc.
pay attention to tire maintenance : After replacing the tire, the action balance treatment to ensure that the tire is evenly stressed.
Through the above measures, the brake jitter caused by the rear brake disc deformation can be effectively reduced and the driving safety can be guaranteed.
Why is the rear brake disc solid
Cost consideration
The reason why the rear brake disc is solid disc is mainly due to cost considerations.
The production process of solid brake disc is relatively simple and the cost is low, so it is widely used in automobile manufacturing. Although the solid brake disc is not as good as the ventilated disc in heat dissipation performance, in daily driving, its braking force is stable and the wear of the brake pad is small, which can meet most driving needs. In addition, the simple structure and light weight of the solid brake disc help to reduce the overall weight of the vehicle, thereby improving fuel economy and performance.
Although in some high-end luxury models, the front and rear wheels may use ventilation disks to improve heat dissipation and extend service life, in most ordinary models, in order to control costs, the rear wheel usually uses a solid disk as the main component of the brake system. This design choice performs well in terms of braking performance and durability to meet the needs of everyday driving.
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