What causes abnormal wear and tear of car tires?

Causes of abnormal wear and tear of car tires:

The kingpin of the steering knuckle is loose or the toe-in is wrong, and the wheel arches, causing the tire to wear eccentrically and appear wavy wear marks.

The front axle beam is bent, the tire pressure is insufficient, and the tire wears both sides.

The tires are not rotated regularly, and the air pressure of the rear twin tires is uneven, so that the tires with high air pressure will wear out at an accelerated rate during driving.

The tire pressure is too high, and the wear area is in the middle of the tread.

Accelerated tire wear due to wheel slippage, or localized tire wear due to frequent emergency braking.

The spacing of the rear wheel twins is not the right size. When the gap is too small, it is easy to evenly damage the opposite sides of the two tires; When the spacing is too large, the car will increase the load on the inner transmission tires and increase wear when driving on the arched road.

There are three scenarios.

1.It's caused by you not doing four-wheel alignment for a long time, so you need to adjust the four-wheel alignment data.

2.Your vehicle has been used for a long time, and the aging of the suspension rubber cover has caused it. You need to replace.

3.It's that you've had an accident and the suspension installation position is not suitable.

One. The middle pattern of the tire is smoothed, which means that the tire pressure is too high. This can be the case with particularly wide tires.

If the tire has been hit with nitrogen, it is generally rarely ground in the middle, but if the air has been played, the water removal of the compressor is not good, and there is too much moisture in the air, and it is easy to have intermediate grinding.

Two. One side is smoothed, the other side is fine. Typical eccentric grinding.

In this case, there is a problem with the four-wheel alignment data, mainly because there is a problem with the toe-in, and it should be noted that it is not only the front wheel, but also the toe-in. Both the front and rear wheels have toe-in.

When the tires are eccentric, you can ventilate or redo the wheel alignment according to the situation.

What are the causes of abnormal tire wear? As the only part in contact with the ground, the quality of the car tire is directly related to whether it can be driven safely on the road. There are many forms of tire damage, and abnormal wear is one of the most common.

Abnormal tire wear not only greatly reduces the service life of tires, but also may also be a signal that there are some safety hazards in the vehicle, which must be taken seriously. Today, Xiao Wan will take you to understand several reasons for abnormal wear and tear of tires, and don't let tires take the blame.

First, the middle of the tread is seriously worn.

The main cause of excessive wear in the middle of the tread is that the tire pressure is higher than the standard pressure and the contact area with the ground is reduced. Excessive tire pressure not only easily causes the wear of the middle of the tire crown to increase, the bottom of the tread cracks, but also makes the cord layer overextended, and even breaks and breaks, and is easy to burst due to the impact of obstacles when driving at high speed on uneven roads.

Second, both sides of the tread are seriously worn.

The main reasons for excessive wear on both sides of the tread are insufficient tire pressure or overloading of the car. This will widen the crown grounding imprint, causing the crown to hit the ground on both shoulders and creating eccentric wear on both sides of the crown. Insufficient tire pressure or overloading of the car can also increase fuel consumption and cause the tire temperature to become too high and cause it to burst.

3. The outer and inner sides of the coaxial tire crown are worn.

The main reason for the abnormal wear on the inner side of the tire crown is that the front wheel toe is unqualified, the front wheel camber angle is too large, and the front axle is deformed, which destroys the front wheel alignment relationship.

It can be seen that there are many reasons for abnormal wear, such as too high or too low tire pressure, or overload, or frequent use of emergency braking, etc., many reasons can cause abnormal tire wear, so is abnormal wear related to tire tread? Actually, there is no direct relationship. However, a more reasonable pattern arrangement can reduce abnormal tire wear, not only the pattern, but also the tire formula can also affect the degree of tire wear.

To sum up, there are many reasons for vehicle eccentricity, if there is abnormal tire wear, you must go to a professional tire shop or auto repair shop to find out the cause, and you must not rely on your own subjective assumptions.

If the tire pressure is too high, only the middle of the tread will touch the ground, and if it is too low, only the shoulders on both sides will touch the ground, which will cause the tire to wear out too quickly and lead to the premature end of the tire mileage life.

Abnormal wheel alignment can cause one side of the tire shoulder to wear faster than the rest of the tread, accelerating tire wear.

If the cause of abnormal wear and tear of your motor vehicle tires may be due to insufficient tire pressure or deviation of your road conditions or your personal driving habits, including the phenomenon of tire eating.

The reasons for abnormal tire wear are: 1. The tire pressure is too low or too high; 2. Abnormal four-wheel alignment; 3. Failure of the steering machine, running the state and starting the deviation; 4. The girder is uneven or deformed; 5. Tires of different specifications are mixed, and the air pressure of each tire varies greatly; 6. The toe adjustment is inaccurate. The way to avoid disturbing the abnormal wear and tear of tires is:

1. Adjust the tire pressure and always pay attention to maintaining normal tire pressure; 2. Pay attention to tire maintenance and transposition, and the vehicle travels 8,000 to 10,000 kilometers to do tire transposition, so that the tire is worn evenly and the life is prolonged; 3. Check whether the hub screws will be loose; 4. Avoid overloading and pay attention to the force balance of tires.

Wheel alignment needs to be done.

It depends on the symptoms of abnormal wear and tear, and different symptoms have different causes.

Tire wear will appear different branches due to the influence of tire pressure, road conditions, wheel alignment and other factors, in more detail, there are ten types of tire wear conditions.

There are two types of abnormal wear and tear caused by tire pressure problems, and when you inflate a tire, you are changing the tire pressure. Some drivers want to reduce vehicle fuel consumption, they will take to inflate the tires and increase the tire pressure, at this time the contact area between the tire and the ground will have a certain decrease, and the grip and resistance will decrease, but when the tire pressure is too high, the performance of the tire will be affected, and the grip and shock absorption performance of the tire will have the greatest impact, and the most serious tire wear at this time is the crown.

On the contrary, if the tire pressure is insufficient or too low, the contact area between the tire and the ground will be too large, which will not only lead to an increase in vehicle fuel consumption, but also make the tire shoulder wear much greater than other positions. According to relevant data, if the tire pressure is 20% higher or lower than the rated value, the mileage loss of the tire will reach 20% 25%.

When the front wheel alignment is inaccurate, there will be abnormal tire camber, when the camber angle is too large, the sidewall on the outside of the tire will form early wear, and when the camber angle is too small, there will be early wear on the inside of the tire.

Wavy wear on the shoulder of a tire is one of the most troublesome of the several abnormal tire wear conditions, which can cause a variety of vehicle problems depending on the position of the tire.

The main reason for this phenomenon is that the toe-in value is abnormal, the steering straight tie rod ball joint is seriously worn, the wheelbase error slightly exceeds the standard, and the front wheel has a tendency to oscillate. To put it simply, when the tires are worn, it is no longer a simple tire pressure problem or the driver's operation problem, but some problems with the vehicle.

If the tires are worn in a bald area, it is because the tire balance is poor, and in this case, when the vehicle is driving at high speed, there will be a slight shaking, and the instability of the vehicle will be clearly felt.

1. Driving style. In addition to dealing with the situation while driving, the driver should choose to drive on the road, avoid sharp stones, glass, metal and other objects that may puncture and scratch the tire, and avoid the adhesion and corrosion of chemical residues to the tire. Drive on a larger camber'When on the road, try to drive in the center to reduce the uneven wear of the tire due to the increase in the load on one side of the tire.

In general, 20% overload will reduce tire life by 30%, and 40% overload will reduce tire life by 50%; In addition, sharp turns, emergency braking, high-speed starting, and rapid acceleration will all have an impact on tire damage, which is what simple drivers should avoid while driving.

Second, the front wheel alignment. Front wheel alignment has a great impact on the service life of tires, especially the toe-in and camber of the front wheels. The camber of the front wheel mainly accelerates the wear of the shoulder, that is, eccentric wear; The toe-in of the front wheels is too small and too large, mainly to accelerate the wear of the inside and outside of the tire.

3. Tire pressure. Air pressure is the lifeline of a tire, and too much and too low will shorten its lifespan. If the air pressure is too low, the deformation of the carcass will increase, the sidewall will be prone to cracks, and at the same time, there will be flexural movement, resulting in excessive heat generation, promoting the aging of the rubber, fatigue of the cord layer, and breaking of the cord.

If the air pressure is too low, it will also increase the ground contact area of the tire and accelerate shoulder wear. The air pressure is too high, the tire cord will be subjected to the extension deformation of the excessive beam destruction, the carcass elasticity decreases, the load that the car receives in the driving increases, and the internal crack rubber preparation and blasting will be produced in case of impact, and the air pressure is too high at the same time and can accelerate the wear of the tire crown, and make the rolling resistance decrease.