Jagged wear on the tread? What are the causes of sawtooth in the rear tires of a car?

The jagged wear of the tire tread is mainly due to improper adjustment of the front wheel alignment or abnormal position of the front suspension system, loose ball joints, etc., which will cause the normal rolling wheels to slide or the wheel alignment to change continuously during driving and form tire jagged wear.

Causes of other wear and tear conditions:

1 The ** part of the tire is overworn in the early stage, mainly due to excessive inflation, which leads to changes in the shape of the tire tread. Excessive tire inflation will affect the vibration damping performance of the tire, so that the tire deformation is too large, and the contact area with the ground is reduced, and the normal wear can only be borne by the tread ** part, forming early wear. Please refer to the standard air pressure**, vehicle load and tire model to fill the tire with the corresponding air pressure, if the wear is more serious, reach the tire use limit, please replace the tire in time.

2. Excessive wear on both sides of the tire is mostly caused by insufficient or excessive load of the vehicle, resulting in too large contact area between the tire and the ground, which makes the contact area between the inside and outside of the tire and the ground too large and causes early wear.

3 Excessive wear on the inside or outside of the tire is mostly caused by inaccurate wheel alignment data. If the toe-in or rear-wheel toe-in is positive and too large, there will be excessive wear on the outside of the front wheel. If the rear wheel has a positive toe and is too large, the situation is similar to that of the front wheel.

4 Tire baldness wear, which is mainly caused by poor tire balance. When the unbalanced wheels rotate at high speed, the individual parts are subjected to large forces, the wear is accelerated, and the steering is not smooth, and the handling performance becomes poor.

1.The main reason is that the front wheel alignment is not properly adjusted or the front suspension system is out of position, the ball joint is loose, etc., so that the normal rolling wheels slide or the wheel alignment changes continuously during driving and forms tire jagged wear.

The tires are worn on one side, and the wear part is on the inside. Regardless of the front and rear wheels, the cause of the failure is that the camber angle of the wheels is too small.

The tires are worn on one side, and the wear parts are on the outside. Regardless of the front and rear wheels, the cause of the failure is that the camber angle of the wheels is too large.

The tire pattern has raw edges, and the wear parts are on the inside. Regardless of the front and rear wheels, the cause of failure is that the toe-in value is too large.

The tire pattern has raw edges, and the wear parts are on the outside. Regardless of the front and rear wheels, the cause of the failure is that the toe-in value is too small.

Tire tread is worn into wavy or jagged shapes, mainly due to tire imbalance and rim deformation.

The four-wheel alignment parameters are inaccurate, and they should be detected and adjusted.

Most of them are the cause of loose suspension, arm or shock absorber failure.

Summary. Hello, happy to answer your questions.

Hello, happy to answer your questions.

There will be a high and a low on the tread of this tire, which is not a state of wear? In this case, one is the quality problem of the wheel spring tire itself, and the other is caused by the loosening of the ball joint of the chassis of the vehicle.

The outer side of the rear wheel is dismantled into serrated strong.

You're a truck, aren't you? In this case, it is possible that the quality of your tires is not good, and the tires are delaminated.

It is a 4,2-meter car.

Is it the same tremor on both sides of the rear wheel, or is it only the same way? Check if there is any clearance in the rear wheels? If there is no gap, this situation is caused by the bad tires themselves.

Tires are not layered.

It means that the appearance of your tire is layered, which is caused by the damage to the steel wire and nylon wire inside him.

No layering. Is the tire layered? You can't see it from the surface, this is the internal layering of the tire, and you can't see it from the outside at all.

The tires themselves are of poor quality; often rush to give way in bad road conditions; After the shock absorber ages, the tread and the ground are scattered, resulting in a jump. Therefore, after the aging of car tires, the owner should refuse to replace the new tires in time to avoid greater potential accidents.

In addition, if the owner is accustomed to sudden braking and sudden stopping, it will cause the brake disc to be uneven, which will make the brake disc uneven, and also cause the vehicle to shake when braking. Hope!

If both sides are on the inside of the wheel, first check whether the positioning parameters of the rear wheel are accurate.

In a certain sense, the jagged wear of the tire tread belongs to the normal wear and tear of the tire, but the wear shape of the tire in the short term is jagged, so it is necessary to adjust the four-wheel alignment.

Slight serration is normal, but we can't ignore it either

In general, when the tire noise is significantly increased, and a tire is found to be zigzag wear after inspection, we must adjust the tire position, in principle, it is to change the rolling direction of the tire, through the reverse rotation of the tire, about 500 kilometers or so, the sawtooth will gradually be smoothed out, of course, in the "running-in" stage, the tire noise will still be obvious, as the sawtooth is gradually worn off, the tire noise will also be reduced, basically, within 1000 kilometers, the tire noise will return to a normal level.

For the general front-wheel drive car, the principle of replacing the tire is to place the problem tire on the front wheel, if the front wheel is worn with sawtooth teeth, then we have to carry out left and right cross rotation, because for the model, the front axle is larger, so the wear and tear of the tire is more serious than the rear wheel. After changing the driving for a period of time, I feel that the tire noise is not obvious, depending on the degree of tire wear, you can make regular adjustments.

If the tires on the rear axle are worn with serrations, we adjust them to the front tire on the same side to ensure the direction of rotation, but if the serration appears on the outer edge of the tire, then it will not be eliminated. At this time, we need to separate the tire from the wheel hub, turn the tire in one direction, and then install it on the front axle, mainly to ensure that the tire rotates in the correct direction. However, if the tyres are mounted in the opposite direction of the front axle after adjusting the tire, they must be mounted on the opposite side axle on the front axle.

Separate the tires from the hub

Every time we do a tire realignment, it's a good idea to write down the kilometers and wear at that time, so that we can make targeted repair projects in the future.

Hello! Two cases ......

1. The four-wheel alignment data is incorrect, reposition.

2. If the rear wheel bearing is damaged, it can be replaced.

The main reason for the lumpy wear of tires is because of the static imbalance of the tires and poor toe-in of the rear wheels.

The solutions to block tire wear are:

Balance the tires and align the wheels.

Adjust the toe-in of the rear wheels.

Summary note: When the tire is worn in block, it is not easy to be found, which buries hidden dangers for driving, so as a driver, you should understand that the tire has this fault, and pay special attention to this fault when checking the condition of the tire. Once found, it should be solved in time, and in the future driving, you should know your tires to avoid unnecessary losses and dangers.