Is the brake disc used for 150,000 kilometers? How deep is the brake disc generally worn before it n

Brake discs used previously.

The service life of the three pieces is basically about 150,000 kilometers, so under normal circumstances, the brake disc needs to be replaced after driving 150,000 kilometers. But nowadays most vehicles use ceramic brake pads.

Its service life is shorter, around 90,000 km.

Generally, the wear of the brake disc is about 1 mm and needs to be replaced. If the brake disc fails or is worn excessively, the brake disc warning light will light up, reminding the owner that the friction disc has been worn to the limit, and the braking effect will be reduced, which will greatly affect driving safety; After the car turns while it is moving forward, when braking is required, the brake caliper clamps the brake disc to generate braking force to slow down or stop the car. Disc brakes work better and are easier to maintain than drum brakes.

During the use of the vehicle, the braking system is also prone to failure, such as brake sound, this is the most common, when you hear the brake sound, you should check whether the brake pads are worn to the limit, if the thickness is normal, the hard pad is likely to be hit by metal particles, at this time, you can take the method of polishing the pad to reduce the brake sound. If it's raining.

If the vehicle is not used, it may cause the brake disc to rust, but no special treatment is required, and the rust will be wiped off when the vehicle is used.

Generally, there is no specific replacement time for automobile brake discs, and they are generally replaced according to the mileage. Under normal circumstances, the mileage reaches 60 to 70,000 kilometers and needs to be replaced, and the specific replacement cycle also needs to be judged according to the owner's car habits, car occasions, car times and other factors. If the owner uses the brakes more frequently, or habitually uses the brakes, then the brake disc of the car is likely to be replaced once every 50,000 kilometers.

If the owner has good braking habits and usually does not slam on the brakes, then the brake disc of the car is likely to take 100,000 kilometers before it needs to be replaced.

In addition, when you apply the brakes lightly, you will hear an abnormal noise, so replace the brake pads immediately. The limit markings on both sides of the brake pads rub directly against the brake disc. If you continue to use the brakes, you will damage the brake discs.

Car owners need to note that the brake discs must be replaced every time the brake pads are replaced. Because the quality of the car brake disc is directly related to the life safety of the occupants in the car, we have to buy the best brake pads and brake discs, and pay attention to the replacement of the brake disc, regular maintenance, and regular inspection.

It needs to be replaced, once the brake disc has a particularly serious wear and tear, there is no way to drive normally and will affect the normal braking of the vehicle, and it should be replaced in time.

The brake disc needs to be replaced. About 2mm, so that the brake disc can be replaced, such a brake disc has no brake function.

The brake disc must be replaced at 150,000 kilometers, and the current car brake disc basically needs to be replaced at 6 to 70,000 kilometers.

The donkey's lips are not to the horse's mouth, and he is babbling nonsense.

Badly worn disc surface.

Yaw brake disc repair step.

1. First of all, the worn surface of the yaw brake disc is milled to remove the rough part of the surface and the depth of surface processing to ensure that the thickness of the yaw brake disc after processing is.

2. In order to ensure that the upper and lower clearance between the yaw brake disc and the yaw brake is within the range of 2-3mm, the upper surface of the yaw brake disc will be welded with a thickness of 8mm insert, the material of the insert is QT400, which is the same material as the yaw brake disc, which can ensure that the welding performance of the insert and the yaw brake disc is good, and the yaw brake disc is basically deformed after welding.

Want. The brake disc, simply put, is a round disc that rotates when the car is moving. If the brake caliper clamps the brake disc and generates braking force, it clamps the brake disc to slow down or stop when the brake is pressed.

Brake discs brake well and are easier to maintain than drum brakes. The brakes have disc brakes and drum brakes as well as air brakes, and many older cars have front and rear drums, and many cars have disc brakes before and after.

Because the disc brake is better than the drum brake, in the high-speed braking state, it is not easy to produce thermal decay, so its high-speed braking effect is good, but in the low-speed cold brake, the braking effect is not as good as the drum brake, ** more expensive than the drum brake, so many high-end cars use full disc brakes, while ordinary cars use front disc rear drum brakes.

Trucks and buses that are relatively low-speed and require large braking power still use drum brakes. The drum brake is sealed, shaped like a drum, and there are many brake pots in China, and there are two arc-shaped or semi-circular brake shoes fixed in the drum brake. When stepping on the brakes, the two brake shoes are stretched outward under the action of the brake wheel cylinder, and the brake shoes are propped up and rubbed against the inner wall of the brake drum to play the role of deceleration or stopping.

No, because the wear resistance of the brake disc is much stronger than that of the brake pad, and the brake disc and brake pad are not replaced by the number of kilometers, whether you need to change it intuitively can be seen and felt, and the brake will scream when the brake pad is worn to one-third thick, and the brake pad that can hear the screaming sound needs to be replaced, and the brake disc is also replaced according to the degree of wear.

According to the normal needs to be replaced, according to personal driving habits different brake disc wear degree must be different, the theoretical data is that the brake disc wear more than two millimeters need to be replaced, the actual use of the best not to exceed this limit. Exceeding this limit does not mean that the brake disc cannot be used, but only that there are certain safety hazards, and the braking effect will be weakened in the case of emergency braking.

Do you need to change the brake disc for 150,000km? Normally, 150,000 km needs to replace the brake disc, and after a long time, this brake disc is seriously worn out, which has hidden dangers to safety.

Under normal circumstances, the mileage of 70,000 kilometers needs to replace the brake disc, if the owner of the braking habits are better, usually do not step on the brakes, then the car's brake disc, can be extended to 100,000 kilometers in the replacement. If the owner uses the brakes more, then the brake disc of this car is best replaced once at about 50,000 km. It is not possible to change the brake disc for 120,000 kilometers, in fact, it should have been changed for 120,000 kilometers.

Once the grooves of the brake disc reach the wear limit, it will affect the braking effect of the car, and for the safety of the owner, the brake disc must be replaced with a new one.

When the owner is gently pressing on the brakes, a sound will be heard, and the brake pads should be replaced immediately. Due to the relative wear and tear of the brake discs and brake pads, the brake discs must be replaced every time the brake pads are replaced. If excessive wear is found, both need to be inspected and replaced.

The limit markings on both sides of the brake pads rub directly against the brake disc, and continued use of the brake will damage the brake disc. The brake disc will have a wear indicator and three small dimples to see the degree of wear. If the brake pads are still very thick, you can't change the brake pads.

Generally speaking, replacing two brake pads requires replacing one brake disc. When the depth of the holes on both sides of the brake disc adds up to more than 3 mm or the edge of the brake disc becomes sharp, it needs to be replaced in time. The replacement of brake discs has a lot to do with the driving environment and driving habits, in urban driving and mountain driving, the braking frequency is high, the wear is relatively fast, the replacement cycle will be shortened, and often at high speed, the braking frequency is low, and the natural cycle will be extended.

Brake discs wear out after a long period of use, and it is natural that grooves will appear when they are worn out. This may be due to the fact that there are more impurities in the brake pads, or the brake pads are hard, and the friction with the brake disc is easy to cause wear and tear of the brake disc and grooves.

If the brake disc groove is not deep, you can use coarse sandpaper to remove the brake pads and polish them smooth, and the brake pads that have been polished on the car can be removed during use. Softer brake pads can be chosen, and although the brake pads wear out quickly, they are not easy to groove the brake disc.

If the brake disc groove is very deep, you can remove the brake disc and polish it smooth, which is often called the brake disc, and then install it back to continue to use, but the service life will be shortened, and it is recommended to replace the brake disc directly. Generally speaking, the front brake disc needs to be replaced once for 70,000 kilometers, and the rear brake disc needs to be replaced for about 100,000 kilometers.

After about 50,000 or 60,000 kilometers, it should be replaced. Of course not, such behavior will lead to brake failure, and the consequences are unimaginable.

Generally speaking, it can be replaced when it is 6 70,000 kilometers, and it is definitely not possible to replace the brake disc for 120,000 kilometers, and it must be replaced.

70,000 km need to be replaced. No, in this case, we can't brake in time, and we can't better ensure our safety.

Generally speaking, the front brake disc needs to be replaced once every 6-80,000 kilometers, and the rear brake disc needs to be replaced after about 100,000 kilometers. So 150,000 kilometers of brake discs to be replaced. The replacement of the brake disc has a lot to do with the driving environment of the car and the driving habits of the individual, driving in urban areas and mountainous areas, the braking frequency will be relatively high, the wear will be faster, and the replacement cycle will be shortened, and often driving at high speed, the braking frequency will be relatively low, and the cycle will naturally be extended.

If the total thickness of the brake disc is lower than the specified minimum wear thickness, it needs to be replaced, and there are marks on the general vehicle instruction manual or ** brake disc for reference, of course, we can also refer to a more general standard The wear thickness is greater than 3-4 mm, which basically reaches the level of replacement. This is the total thickness of wear, because many brake discs are currently with intermediate heat dissipation holes, and the brake discs are divided into internal friction discs and external friction discs, so the overall key and quantity should be measured when measuring.

In addition, it is the radial sway value of the brake disc, which is also called the runout of the end face. This is reflected in the actual situation, that is, we will feel that the vehicle has obvious shaking phenomenon when braking, and it is normal in other cases. In terms of the specific value, the end face runout of the brake bright first disc can not exceed millimeters, but generally smaller maintenance shops do not have such professional measurement tools, so they are basically judged by customer feelings or their own test drives.

Photo by Dong Peng) @2019

1. The front brake disc needs to be replaced once every 6-80,000 kilometers, and the rear brake pads need to be replaced after about 100,000 kilometers. The replacement of the brake disc has a lot to do with the driving environment and driving habits, driving in urban areas and mountainous areas, the braking frequency is high, the wear is relatively fast, the replacement cycle will be shortened, and often driving at high speed, the braking frequency is low, and the natural cycle will be extended.

2. Visually inspect the surface of the brake disc to see if there is a deep (super above) groove, and it is estimated that the brake disc needs to be replaced. Mainly due to foreign objects such as gravel between the brake disc and brake pads; After the brake pads are worn to the limit, the metal layer rubs against the brake disc and other reasons.