How often is it most Appropriate to Replace the Brake Disc?
July 05,2022
First of all, let's popularize the braking principle of the car: when the driver presses the brake pedal, the brake oil in the brake master cylinder will generate pressure, and the liquid will transmit the pressure to the piston in the caliper of each wheel through the pipeline. The piston then drives the caliper to clamp the brake pads and brake discs, thereby generating friction and slowing down the vehicle.
The tire braking is realized by clamping the circular brake disc when the vehicle is rotating by the brake pads in the brake caliper. If the brake disc and brake pad are not replaced for a long time, it will cause greater wear and tear, resulting in the poor braking effect of the vehicle. Therefore, it is important to master the relevant knowledge of the brake disc.
What is the brake disc?
The brake disc, in short, is a round plate, which also rotates when the car is moving. The brake caliper clamps the brake disc to produce braking force. When you step on the brake, it clamps the brake disc to slow down or stop. The brake disc has a good braking effect and is easier to maintain than the drum brake.
Replacement mileage of brake disc
Generally speaking, the brake pads (that is, the two pads in the brake caliper) need to be replaced about 30000 to 40000 kilometers, while the replacement mileage of the brake disc is generally about 70000 to 80000 kilometers. Of course, changing the mileage is not completely absolute. It is determined by the owner's own driving habits (whether he likes sudden braking), road conditions, and other factors.
Under what circumstances should the brake disc be replaced
- In addition to the driving mileage mentioned above, if the warning light of the brake disc is on, it indicates that the loss has reached the limit and needs to be replaced immediately.
- Check whether there are deep grooves on the brake disc. When the combined thickness of the deep grooves on both sides exceeds 3mm, the brake disc needs to be replaced.
- If the replacement frequency of the brake pad is very high, you can observe the thickness of the brake pad more. If the brake disc is worn too much, it also needs to be replaced in time, because the wear of the brake pad and the brake disc generally correspond.
Daily maintenance method of the brake disc
The brake disc will generate a lot of heat when braking, so don't wash the car immediately after braking. You should turn off the engine and reduce the surface temperature of the brake disc to prevent the high-temperature brake disc from deforming and cracking due to thermal expansion and contraction in contact with cold water.
In addition, the best way to improve the service life of the brake disc is to maintain good driving habits and try to avoid sudden braking and sudden stopping.
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