What are the abnormal wear and tear of tires? What are the causes of abnormal tire wear?

Early wear of the ** part of the tire: The main reason is excessive inflation. Properly increasing the inflation capacity of tires can reduce the rolling resistance of tires and save fuel.

However, when the inflation is too large, it will not only affect the vibration damping performance of the tire, but also make the tire deformation too large, reduce the contact area with the ground, and the normal wear can only be borne by the tread ** part, forming early wear. If you choose wide tires on narrow rims, it will also cause some early wear. 2. Excessive wear on both sides of the tire:

The main reason is insufficient inflation, or long-term overloading. When the inflation capacity is small or the load is heavy, the contact surface between the tire and the ground is large, so that the two sides of the tire are in contact with the ground and cause early wear. 3. The amount of wear on one side of the tire is too large

The main reason is misalignment of the front wheels. Early wear is formed on the outside of the tire when the camber of the front wheel is too large, and early wear ...... is formed on the inside of the tire when the camber is too small or absent4. Jagged wear on the tire tread: The main reason is that the front wheel alignment is improperly adjusted or the position of the front suspension system is abnormal, the ball joint is loose, etc., which makes the normally rolling wheels slide or the wheel alignment changes continuously during driving, resulting in tire jagged wear.

5. Large wear of individual tires: The suspension system of individual wheels is abnormal, the bending of the support or the imbalance of individual wheels will cause early wear of individual tires. When this happens, the positioning of the worn wheels, the operation of the independent suspension springs and shock absorbers should be checked, and the wheel rotation cycle should be shortened.

6. Tire bald wear: The reason for bald areata wear in individual parts of the tire is 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.

If you notice a slight jolt in a particular speed direction while driving, you should balance the wheels to prevent bald wear.

There are many situations where tires wear out abnormally, such as tire scratches, bumps, and bruises.

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.

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.

Different degrees of wear on the front wheels are harmful. Because: 1. Because the front wheel mainly controls the direction, because the front wheel bears most of the load, acceleration, driving, steering, and braking force, the front wheel wears faster than the rear wheel, the degree of wear will be different, and the direction will be out of control.

2.When driving at high speed or high speed, different driving modes will cause the vehicle to drive unsteadily, shake the head, and even shake the steering wheel, which will affect driving safety. Tire Maintenance:

Keep the distance between the vehicles when driving at high speeds, avoid unnecessary or frequent braking (braking), and reduce damage to tires. At the same time, for your own safety, pay attention to the tread depth of the tire. When the tires are close to the ground, the braking distance is longer because the friction with the road surface is reduced, and the vehicle does not drive at high speeds.

The causes of tire wear are: incorrect positioning, driving speed too fast, high tire pressure, too fast cornering, too fast start, and too strong braking.

Tire wear is mainly caused by the friction caused by the sliding between the tire and the ground.

1. Incorrect positioning, the main reason is that the front wheel alignment is inaccurate. When the camber of the front wheel is too large, the outer edge of the tire is worn. When the camber angle is too small or absent, the inside of the tire is worn.

2. The wear and tear of the tires is also related to the speed of the car, and the faster the driving speed, the more serious the tire wear. The quality of the road surface also directly affects the friction between the tire and the ground, and when the road surface is poor, the tire and the ground slide intensify, and the tire wear accelerates.

3. The tire pressure is too high.

Some car owners will increase the tire pressure to a high level due to the heavy load of the vehicle or other reasons. However, if the tire pressure is too high, the middle part of the tread will be more prominent, and the contact surface between the tire and the ground will become smaller, and the tread wear will be more serious, but the edges will not be much wear.

Photo by Dust Leak Li Shuiqing) @2019

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.