Few motorists take tire wear seriously. When the "rubber" loses its grip, it is customary to change it, but it is not so easy to determine the exact replacement cycle. Even by maintaining the correct pressure in the tires of a car throughout its life, they can wear out much faster than their manufacturer predicts. This is due to the fact that the car has certain malfunctions that lead to early wear of the rubber tread.

From the wear pattern of a car tire, you can find out what specific malfunction is in the engine, suspension or other units. After its elimination, the rubber will serve much longer, and the car will work in the right mode.

Severe wear on the inside or outside of the "rubber"

The most common problem among motorists is one-sided tire wear. The "rubber" may wear out more on the inside or outside, and after a while it will become unusable for road use. Such a problem diagnoses for the driver the fact that the wheel alignment was incorrectly performed on his car.

If the camber is set incorrectly and the upper part of the wheel is offset from the center of the car or towards the center of the car by several degrees, tire wear on one side will increase. In some situations, a deviation from zero camber is necessary for the driver, for example, if he is racing. By setting the negative camber, it is possible to improve the contact patch of the tire with the road surface, and the car enters corners better.

In urban conditions, zero camber must be installed on cars, otherwise there will be problems with exchange rate stability, and even driving on a straight road will become unstable. To solve the problem with one-sided internal or external tire wear, it is necessary to carry out a wheel alignment of the car.

Increased wear on the outside and inside of the tire

When protector car tire wears out heavily at the edges, but at the same time remains intact in the center, this clearly indicates problems with pressure in the “rubber” during the operation of the car. When the tire pressure is low, the inside of the tire does not adhere tightly to the road surface. This leads not only to increased tire wear on both sides, but also to increased fuel consumption, braking distances and handling problems.

Driving with low tire pressure is dangerous for both the driver and other road users. If you regularly maintain tire pressure at the same level, but still have similar wear, we advise you to check in the reference information for the car whether you have chosen the correct tire pressure. It is also recommended to change the car tire pump, which may show incorrect results.

Even the rubber surface of tires can be covered with small dents that change the shape of the tire and make it unusable. Along the edges of the tire, bumps and depressions form, and the reason for this is problems with the suspension.

When driving on the road, the car constantly bounces and falls, and the suspension must absorb the impact of the tires on the roadway so that they do not appear indentations. If there are suspension problems or undercarriage, cushioning impacts on the roadway may not be sufficient.

Spend complete diagnostics not every driver will be able to independently manage the suspension and chassis of the car. That is why in such a situation it is better to contact a specialist or try to replace the shock absorbers. In most cases, they are to blame for the appearance of dents on the tires.

Long-term diagonal denting and severe tread wear

This issue is relevant for rear axle front wheel drive car. Most often, it occurs when a passenger car is operated in cargo mode, that is, it often carries loads for which it is not designed. Also, taxi drivers can often observe a similar problem.

If the car is not used as a means for the constant transportation of heavy loads, but at the same time it has a similar problem, the reason for this is incorrect wheel alignment. As a result, before installing new rubber on the car, it is necessary to check the wheel alignment and set it to zero.

Excessive tread wear in the middle of the tire

If the tread is almost completely worn out in the middle, but such serious wear is not noticed at the edges, then the problem is driving on roads with high tire pressure. Once again, check whether you really inflate the tire to the value recommended by the manufacturer of your car model.

Some experienced drivers claim that when driving on an overinflated tire, gas is consumed less, and this is true. This is due to the fact that the car loses good grip, and all of its mass is shifted to the middle of the tire, pressing it to the roadway. Such savings in gasoline will result in a need frequent replacement tires due to their rapid wear.

It is worth noting that during the cold season, tire pressure may decrease due to weather factors. If you go on a trip on "ice" tires, then after some time after the start of movement, the air in the tires will begin to heat up seriously, and this can lead to an excess of the pressure recommended by the car manufacturer. As a result, the driver will get poor traction and tire wear in the middle.

To avoid problems with tire inflation when accelerating in the cold season, you should check that the tire pressure is within the recommended value before each ride.

Another problem that high or low tire pressure can cause is cracking. A tire hitting a curb or a pit is a stressful condition for a tire that it can tolerate without damage at ideal pressure. If longitudinal cracks appear on the sidewall of the tire, it means that it has been used for a long time with insufficient pressure.

Also, small cracks may appear on the tire, and it can be said from them that the life of the rubber has come to an end. In such tires, the chemical decomposition of elements begins, which allow it to maintain its properties. It follows from this that the operation of such tires is prohibited.

When a tire with high pressure hits a hard surface, a hernia can form inside it. This is due to damage to the inner layer of rubber, and it is not immediately possible to notice the appearance of a hernia. After a week or two or even more, the hernia will manifest itself as a bulge on one of the side edges of the tire.

Attention: Driving a car with a herniated tire is extremely dangerous. If such a problem occurs, it is immediately recommended to change the tire to a new one.

Diagnosing such a problem is the most difficult, since it is not visually visible. To determine the presence of convex wear on the side edges of the tread, you need to run your finger over them. You can feel that the low edges of the tread block are worn out in a rounded shape, while the high edges, on the contrary, are pointed.

If a similar problem manifested itself on the car, it is necessary to check the wheel bearings and ball joints. It is worth noting that the outer tread blocks may wear out on one tire, while the rest will be fine.

One of the most common problems is wear on the leading edge of the tread. The main problem is that most drivers believe that tires should wear out in this way during operation, but this is not the case. This wear indicates that the vehicle has some suspension problems. Most likely we are talking about a malfunction of ball bearings or silent blocks.

Diagnosis of such a problem is possible only "by touch". To do this, you need to run your hand along the edges of the tread teeth. If some of the teeth are sharper than others, then there is a problem.

If there are separate zones on a car tire that are worn out more than the rest, they are usually called “bald spots” or spots. Most often, such spots appear on the cars of drivers who like to accelerate and brake sharply. In case of rare (including emergency) braking, if the car does not have ABS system, the wheels lock up and the vehicle slips on the tire a section of the roadway. Sliding leads to an increase in the temperature of the tire and its instantaneous wear.

In addition, spots on the tires of a car can appear if it is idle for a long time. When parked for a long time, a separate section of the tire bears the entire weight of the car. Due to its structure, it can deform over time.

Tires are one of the most wear and tear parts of a car. But what if they wear unevenly. To begin with, this uneven tire wear should be correctly identified in order to determine its causes. How does tire wear unevenly?

• in various places of the circumference - at certain points of the tread it is heavily worn (spots),
• on the different side of the tire - the outer, inner side of the tire or its central area around the entire circumference,
• one tire wears out much faster than the others,
• a pair of front or rear tires wear out faster.

Let's now give the reasons and consider the nature of tire wear for each cause. We will consider these reasons from the most common to the least common.

The tire is worn in the center or on the sides. The reason is insufficient or excessive tire pressure.

Incorrectly exposed will certainly lead to the fact that their abrasion proceeds unevenly. Trying to identify this cause on specific worn wheels is a waste of time. The pressure can change in each wheel differently, even if you always pump up only all four wheels.

But this reason can be determined by the nature of the wear of the tread itself. The fact is that an under-inflated tire, as you know, sags, and therefore the sides of the working surface wear out faster. But for over-inflated tires, on the contrary, the central part is erased faster, since under excess pressure it is this pressure that pushes out the most, as a result of which, the most load falls on the axis of the circle.

The result of driving on overinflated (top) and underinflated (bottom) tires

Only certain areas of the tire are worn out. The reason is a deformed disc or wheel balance is disturbed

A deformed (crumpled, "figure eight", etc.) disc can also often cause uneven wear of rubber. In this case, wear will occur in certain places (spots) of the tread. If the disk "eights", then the wear will be in the form of two spots: one on one side of the tire in a certain place, and the second - in the diametrically opposite place of the tire and on the opposite side. When the disk is deformed, the tire wears out very quickly, depending on the degree of deformation, of course.

The tire is subject to similar wear in the case of wheel imbalance. Although, this happens much more slowly than with a deformed disk.

And in both cases, an additional symptom is a beating on the steering wheel or throughout the car. A visual inspection of a worn wheel will help identify this deformation.

Sometimes the rubber itself can become the cause of increased wear - its marriage in the form of a broken metal cord. The cord can burst if the rubber has already worn out significantly.

Only the inner or outer side of the front wheels wears out. Cause - wheel alignment

If the front wheel alignment is out of alignment, then your two front wheels are not parallel to each other. They either "clubfoot" - they look forward, a little to the center with the projection of the direction, or they are inclined to one side or another relative to the vertical axis.

As a result of this, you get excessive wear on the rubber of only the front wheels or with inside, or from the outside.

If a similar situation occurred with the rear wheels, then there is a bent beam (if any) or one of the failed (possibly also bent) suspension elements.

The outer side of the tires can also wear out due to a faulty silent block or ball joints.

Only one wheel wears out. Cause - something happened in the suspension or wedge brakes

If a component in your suspension is worn or loose, such as a leaky strut, it can lead to excessive tire wear on that particular wheel. If any part of the suspension is not working properly, the wheel will bounce more or it will be harder to go over bumps in the road. This creates additional friction on that tire, causing a significant reduction in tire life and tread condition.

Here, as a rule, uniform tire wear occurs only on one wheel.

Now imagine that you are driving around all day with a little pressure on the brake with your foot. This is what it's like, if somebody wedges brake component, such as a caliper (its piston). This usually happens only on one wheel, and because of this, it wears out faster (even wear occurs).

Only the front wheels wear out. Reason - something happened in the steering

Almost every part of the steering system can also lead to tire wear. But here we will only talk about the front wheels, and the nature of wear can be completely different: both in spots and on one side of the tire around the entire circumference of the tread.

Tires can be called the link between the car and the road surface. That is why for many decades the composition and design of tires has been constantly improved. According to the accepted rules, the car is allowed to participate in road traffic only when proper condition wheels. Inspection of tires from all sides allows you to get information about their condition, the technical condition of the car and the peculiarities of the owner's driving style.

Why eat rubber - enough frequently asked question, which can be found on various automotive forums. Indeed, some time after the discovery of uneven wear, the wheels may be unusable, since severe wear significantly impairs handling, increases braking distance, and reduces stability. vehicle on road.

We carry out an inspection

ATTENTION! Found a completely simple way to reduce fuel consumption! Don't believe? An auto mechanic with 15 years of experience also did not believe until he tried it. And now he saves 35,000 rubles a year on gasoline!

The features of the car determine which side the wear is more severe: at the rear or at the front. In order to evaluate not only the suitability of tires, but also to determine the absence of problems with technical condition vehicle, all 4 wheels should be inspected.
In doing so, we note:

1. For a car that has a rear drive axle, it is the rear wheels that will be worn out more, for a front-wheel drive car, on the contrary, the front ones. This is due to the fact that the transmission of torque leads to an increase in the frictional force between the wheel and the road.
2. If, for example, Fiat Albea has disc brakes at the front and drum brakes at the rear - the front wheels will be worn out to a greater extent. This is due to the fact that the efficiency of disc brakes is higher. Often, severe abrasion of one or another part of the wheel occurs during braking, since at this moment there is a large load on the axle.

Driving style always determines the degree, the rate of wear. The more during the movement of acceleration and deceleration, the greater the wear.

When inspecting, it should be borne in mind that the cases under consideration determine uniform wear over the entire surface. What eats rubber unevenly? The answer is quite simple - there is a malfunction that leads to this.

It is possible to determine that the wheels are more eaten from the inside or outside only after a fairly long period of time. This is due to the fact that only after a few hundred kilometers this will become visible without the use of special instruments for measuring the tread size.

Wear of steered and driven wheels

An important point can be called something that eats rubber from the inside and outside of the driving and steered wheels in different ways, even in the absence of a malfunction. This is due to the following points:

1. At the time of the turn, the steered wheels grip the road surface with the inner or outer side of the tire, which is associated with the features of the steering system. Therefore, Fiat Albea may have tires with uneven wear. However, a similar phenomenon manifests itself after several thousand kilometers.
2. The wheels to which the torque is transmitted wear out to a greater extent in the middle - it eats rubber in the place where the load and friction force are concentrated.

If the steered wheels are driving, then the two phenomena are summed up and uniform wear occurs. A similar phenomenon is typical for a front-wheel drive vehicle. What eats uneven tires in this case - the answer lies in the presence of a malfunction.

Frequent problems

When considering why Fiat Albea has tires with varying degrees of wear, it should be noted that in some cases the problem manifests itself after several hundred kilometers of travel. We single out the following reasons for what eats rubber unevenly:

What eats rubber - quite a lot of answers. A Fiat or other car should be checked according to a certain pattern to identify the problem. This is due to the fact that even a simple cause, which will take little time and effort to eliminate, can lead to significant problems.

Pressure unevenness

The reason, which is the answer to the question of what eats rubber, can be called uneven pressure on wheels mounted on the same axle. In such a case, it is also possible for the vehicle to pull to one side. An example is when a Fiat has one front tire with 1.5 atmospheres and the other with 2.0 atmospheres.

In order to check this, it is enough to visit a gas station or station Maintenance. After checking the pressure, you need to equalize it, after a while you can check whether the pressure difference is the cause of uneven wear.

The collapse of convergence

On the inside or outside, eating may occur due to the incorrect location of the wheels relative to the vehicle body. In this case, after a long time, severe abrasion can occur on either side. Considering this problem, the following nuances should be noted:

1. Camber is an indicator that is responsible for the tilt along the vertical axis.
2. Convergence is an indicator that is responsible for the position of the wheel when turning.

Similar indicators apply only to the front axle. What can strongly eat up the wheels after a few kilometers of the distance traveled?

If you knock down the camber settings, the cord wears out. At the same time, it eats the cord in different ways, depending on how the reset of the set parameters occurred. After several hundred kilometers, the problem can manifest itself clearly, up to the complete abrasion of the tread to the base of the cord.

Considering such a question, we note the following:

1. If it eats up the inside, then this indicates an excessive inclination inward. This situation is called negative collapse. This situation occurs quite often.
2. If the outer edge wears quickly, then this is positive wear. In this case, the wheels are tilted in different directions.

After 300-500 kilometers of the distance traveled, even new tire may fall into complete disrepair. However, it should be borne in mind that zero camber leads to uniform, but increased wear. This situation also leads to a significant increase in fuel consumption, as well as an increase in rolling resistance.

Knocking down the settings takes place for the following reasons:

Checking the collapse of the convergence at the service station takes a little time. Modern equipment allows you to quickly and accurately check the collapse of the toe. Experienced craftsmen perform the work of setting the desired parameters in a short time.

Not only different, but also low pressure can lead to a decrease in the life of the purchased tire. This is due to the fact that tire manufacturers create a design taking into account the recommended operating conditions. If you operate the wheels with low pressure, it begins to wear out quickly. In this case, the load will fall on the part that is not intended for this.

A small pressure indicator determines the following:

1. The structure begins to sag at the edges.
2. The rim may come into contact with the surface of the tire, which will increase wear.

but great pressure also causes eating to begin in the central part.

That is why you should constantly pay attention to what pressure. It is worth inflating the wheels to the rate recommended by the manufacturer.

Manufacturing defects

There is a low probability that a marriage was made during the manufacture and uneven wear occurs due to the irregular shape of the product. That is why you should purchase products only from trusted manufacturers.

Among the most common problems are the wrong composition of the rubber used, the wrong shape of the court, and other defects. Unfortunately, it is practically impossible to check the quality of tires without special equipment.

Tire aging

Even though rubber tends to wear out before its expiration date, there is a time limit. Aging rubber can cause it to wear unevenly and severely. It is also worth noting that improper storage can lead to rapid aging of rubber.

All manufacturers indicate how long a product can last under certain operating conditions. It also specifies how it should be stored.

The aging of rubber leads to the fact that it loses its tightness and the structure becomes porous. After a while, moisture begins to penetrate deep into the structure. Typically, manufacturers use metal cord to reinforce the structure. Moisture leads to the destruction of the metal base. According to accepted standards, a tire cannot be used after 10 years from the date of its release.

Other reasons

The above reasons can lead to severe surface abrasion after a few hundred kilometers. However, some malfunctions can also lead to minor wear, which will appear after several thousand traveled distances. Such reasons include:

1. Suspension failure. If camber is associated with the front suspension, then eating out the rear rubber may be due to a suspension malfunction. Incorrect arrangement of some elements can cause the wheels to be located at a certain angle. An example is the violation of the position of the racks, as well as levers and other elements that affect the position of the rim.
2. Changes in body geometry after an impact can also cause uneven wear. It is possible to identify such a situation only if certain equipment is available.
3. The nature of the disc you are using can also cause the problem in question. For example, after a strong blow, the shape of the disk may be broken.

Types of tire wear

The above causes can also lead to tire wear on the inside. However, they are quite rare. Body geometry changes after a hard impact, suspension failure resulting in wheel tilt is often repaired earlier, modern wheel disks have high strength.

Epilogue

In conclusion, we note that the timely detection of the problem will eliminate the problem and preserve the integrity of the tire. Timely detection of the problem is possible with a constant visit to the service station. When pumping up wheels or conducting suspension diagnostics, you should pay attention to the condition of the tread.

Car tires, like all parts in a car, have their own specific resource, as a rule, with careful operation and normal quality, tires last from 4 to 6 years. But often there is intensive premature wear of tires, as motorists say, it eats rubber. Tires can “eat up” in different places of the tread, wheel wear occurs both on the front and rear axles.

It is not easy to say unequivocally why there is a rapid abrasion of tires, sometimes it is even difficult to find the cause in general. experienced drivers. But in many cases, the “zhor” of tires indicates existing malfunctions in the car that need to be fixed.

The main reasons why he eats rubber from the outside

Rubber on a car can be eaten both from the outside of the tread and from the inside, the main causes of external intensive wear:

• incorrect toe-in adjustment (wheels are tilted more than expected in different directions);
• the presence of backlash in the steering rods and tips;
• factory defect of tires;
• high speed when cornering;
• insufficient tire pressure.

As a rule, when the outer part of the tread is intensively eaten, the rubber makes an unpleasant squeak when cornering. On many passenger cars, the tires on the front axle wear out first of all, since the “zhor” occurs during braking, and the load mainly falls on the front disc brakes.

Also, a hernia may appear on the outer side wall of the rubber, which occurs as a result of a side impact, falling into a hole in the road. It should be noted that the bulge on the tire does not always appear immediately, a hernia can be detected only after a week or even later. Cracks from the outer part of the tire most often appear for two reasons:

• the car has been operated for a long time with low tire pressure;
• the tire has exhausted its resource, it is time to change it to a new one.

Another option is uneven wear of the outer part of the tread along the radius, a kind of bumps appear on it. The main reason for the occurrence of such a defect is a faulty suspension, punched shock absorbers are primarily to blame for this.

Eats rubber from the inside on VAZ-2101-07 cars

On any car, the tread on those wheels that are driving wears out first of all, therefore, on all rear-wheel drive VAZs, the rubber on the rear axle is eaten more intensively. The main reasons for the intensive wear of tires on the "Classic":

• the geometry of the body is broken (usually after a blow to the rear);
• bent "stocking" (body) of the rear axle;
• jet thrusts are faulty (bushings are bent, broken);
• curved rims;
• wheel alignment not adjusted.

Uneven wear of the tread of one of the tires on the axle may be due to different pressure in tires, for example, in one wheel 1.5 Atmospheres, in the other - 2 Atm.

The reason for the "zhora" of tires on the front axle of the VAZ is often faulty silent blocks, here the internal bushings can be displaced or broken. Also, rubber often wears out due to a blow to the wheel (getting into a pit at speed), in which case the tire on the side of the axle where the damage occurred is “eaten up” more intensively.

All the same problems with tread wear are also observed on Niva cars, since the suspension of this model is structurally almost the same as on the VAZ-Classic.

Why eats rubber from the inside and the outside at the same time

It often happens that the rubber is “eaten up” on both sides of the tread at once, as a rule, in this case, the car does not lead to the side, it drives straight. If this happens, the low pressure in the wheels is most often “to blame”, when the tread pattern is worn only in the middle - the car is constantly operated with tire pressure above normal.

Another option - on one front wheel, the inner part of the tread is "eaten", on the other - the outer one. In this case, most often the cause of the defect is incorrect wheel alignment, but on some auto models, the wheel alignment is not adjustable, for example, on Gazelle cars. On cars manufactured by GAZ, the collapse is exhibited from the factory, and factory defects are not excluded here. Another "culprit" of the malfunction is a worn hub bearing, its diagnosis should be carried out with the wheel hanging.

Causes of premature wear of the tire tread due to the fault of the driver

As we have already figured out, intensive tread wear is most often the result of malfunctions in the car, but the car owner himself is not so rarely to blame for the rapid failure of tires, and here are the main reasons:

• car operation on bad roads;
• aggressive driving style (driving with a sharp start and braking, a long trip on the highway with high speed);
• irregular maintenance, untimely repairs.

If the tires wear out quickly, and there are no obvious technical problems, the driver should think about whether he is operating his car correctly, maybe he should change his driving style, regularly monitor the technical condition of the car.

Why You Should Pay Attention to Tire Wear When Buying a Used Car

If you buy a used car, it is important to pay attention to the condition of the tires during the inspection, they can say a lot (of course, if the tires are not new). As mentioned earlier, uneven tire wear can mainly be caused by the following reasons:

1. Tire pressure incorrectly adjusted.
2. Wheel alignment angles set incorrectly.
3. There are malfunctions in the suspension - there are backlashes in the steering rods / tips, silent blocks are worn out, levers are bent, shock absorbers need to be replaced, and so on.
4. The rims are deformed, an imbalance occurs.
5. The geometry of the body is broken.

If it is quite simple to deal with the first four points, and the cause of the malfunction can be eliminated, then everything is more complicated with a violation of the geometry, it can be violated as a result of a serious accident, and it may not be possible to fix something in this case. Therefore, before buying a car with unevenly worn tires, you should ask the real owner to diagnose the car at a service station, and only after making sure that the body is in good condition, carry out a sale and purchase transaction.

Importance of proper tire pressure

Tires are inflated to a certain pressure so that the car can ride smoothly on the road and support its weight. If the pressure is set incorrectly, it increases fuel consumption, tires wear out ahead of time, the car handles worse and slows down.

The statement that it is necessary to inflate tire pressure of 2 atm on any passenger car is incorrect, for each car the manufacturer sets its own parameters, usually they are indicated on the central body rack of the car from the driver's side, and information can also be marked on the gas tank flap from the inside.

When measuring with a pressure gauge, it is important to take into account that tire pressure rises in heat, so you need to inflate the wheels in accordance with the season and the temperature at which the car is operated. And measurements must be made at least once every three months, and before each trip, the condition of the tires should be inspected.

Any experienced car enthusiast knows that for the normal operation of a vehicle, it is not enough just to select the necessary tire, install it on rim, balance and ride without the risk of accidents and premature wear. One of the most important actions that a car must undergo is camber and toe adjustment, that is, aligning the position of the wheels in a horizontal direction to prevent excessive rubber abrasion.

For many motorists who do not have sufficient driving experience, the question often arises why it eats rubber from the inside on the front axle. There are several reasons for this defect, and none of them depends on the other, in particular:

• Most frequent problems- these are problems in the convergence and camber of the wheels, and this may have nothing to do with the adjustment, because their position is unstable and it can easily change from a strong shock or vibration effects. In order for the driver to identify a toe and camber problem, he can simply accelerate in a straight line. flat road and release the steering wheel for a few seconds. If the car pulls to the side, this is one of the signs of a violation of this adjustment.

Eating rubber from the inside in front

• Also, the problem of wheel wear on the inside can be caused by insufficient pressure in them, when the middle of the sole of contact with the road bends, and the shoulder protectors, on the contrary, wear out faster.
• If a car enthusiast buys a cheap replica instead of original tire, then the probability of marriage in the manufacture of the wheel is high. This alignment, as a rule, causes an uneven distribution of masses, beating at speed, unnecessary vibrations and, most importantly, uneven wear of the protectors.
• Some cars are designed so that the wheels tilt slightly when turning, and engineers deliberately resort to this technique in order to reduce the turning radius of the vehicle. In such cases, the wheel has a contact patch with the road only on one part of the sole, which inevitably leads to tire wear on one side.
• If the tire is used for several seasons in a row, then there is a high probability of its fatigue, which causes plastic deformation of hernias and, as a result, the destruction of the tread from friction on the road surface.

If a car enthusiast notices that the rubber on his “iron horse” is eating up, then in most cases this may be due to one or more of the factors listed above. Of course, there may be more reasons, for example, when a car is systematically overloaded or if it is restored after a serious accident with frame deformation, however, as a rule, it is incorrect wheel alignment that is to blame for the rapid wear of tires.

Wheel alignment adjustment

How does the wear mechanism of the drive front wheels occur?

When the above causes occur, drivers begin to notice how they eat rubber from the outside in front, and the physical process that occurs in this situation is described below:

• The contact of the tire sole does not occur evenly over the entire grip area, but only along one of its parts, and the wheel can not only roll without encountering resistance on its way, but also slip during acceleration, braking or cornering.
• The hard coating acts as an abrasive on the tread and always causes micron layers of the tire's sole to be destroyed during every ride.
• Considering that the uneven distribution of the contact surface causes an increase in pressure per unit area, wear in this place is several times more intense due to the concentration of stress at one point, which causes the so-called undercutting.

At incorrect work basic bolster control systems, the driver can see that he is eating the inside of the rubber on the front wheels after only a few hundred kilometers. This means that vigilance is never too much, and constant monitoring of the tread height across the entire sole of the tire helps to identify the problem at an early stage and prevent more serious damage to the car.

Wheel tilt on a turn

The main reasons for eating rubber on the rear wheels

In the case when a motorist notices that he is eating rubber on the rear axle, then the reasons may be the same as those listed above, as well as some other technological and operational features of the vehicle.

So, this defect most often occurs due to the following factors:

• Of course, the violation of convergence and camber, as well as for the front wheels, is one of the main reasons for eating rubber.
• Rarely, especially for domestic cars old models that rear axle has dependent wheels, and it is a solid beam, it is not possible to check the position of the wheels on which and adjust them. In such cases, the causes of the defect may lie in off-design bends of the most massive beam due to the car falling into a deep hole at speed, and the problem will have to be corrected already on the exhaust stand.
• During tire fitting, masters often show irresponsibility by not using a torque wrench when tightening the nuts on the studs that hold the wheel to the hub. In such cases, distortion can also occur and, as a result, rubber is eaten from the inside in front or behind with all the ensuing consequences.
• Unlike front axle for correct adjustment rear wheels it is extremely important that all control measurements be carried out with full tank, since it is located just behind, and gasoline can weigh up to 50-70 kg. Thus, when adjusting the angle of inclination of the wheels with an empty tank during the next refueling, the car may well sink and the wheels start to eat up.

Eating rubber in the back

• The last thing that is especially acute for cars with a large trunk, for example, SUVs, minivans or pickups, is the overload problem, as drivers sometimes neglect the permissible curb weight of the car, the excess of which is often displayed on the suspension condition and, as a result, affects the misalignment of the wheels. .

Why does the rubber eat up from the inside of the rear wheel? Although drivers often complain when they eat rubber on the outside of the front axle, the rear axle is considered much more problematic in terms of its maintainability and the ability to adjust without significant spending.

The main mistakes when adjusting the front wheels

Many experienced motorists have encountered such a problem when, after the next scheduled maintenance, the inside suddenly begins to wear out front wheel. This is primarily due to the violation of technology during the adjustment of convergence and camber, since this procedure must be carried out on a special stand using the appropriate equipment and professionally trained craftsmen. If the procedure is carried out with violations, then a result occurs, called critical adjustments, which is expressed in the following criteria:

• Regardless of class passenger car, when adjusting the camber, it is desirable to maintain a negative angle for the front axle, because the mechanism for turning a constant load from the engine brings them into balance in this position.
• When setting right angle convergence, i.e. the positioning of the wheels in relation to the horizontal surface, on the contrary, it is necessary to give the value only positive values ​​in order to achieve an ideal balance while driving at high speed. It is this adjustment that can ensure that the grip patch, if the wheel is not pumped relative to the standard values, will fall on the entire area of ​​\u200b\u200bthe sole of the wheel, which in turn will provide ideal traction and transmission of all torque to the tire without any loss.

Caster Angle Adjustment

• The last important indicator that many tire fitters neglect at all is caster. This parameter is an angular value that characterizes the inclination of the projection of the vertical plane across the wheel with respect to the perpendicular lowered from the point of attachment of the disk to the hub strictly vertically. The importance of the correct positioning of this parameter is obvious, since the automatic return of the steering wheel to its original position is possible only if the correct adjustment is ensured.
• Accordingly, a correctly set tie rod can guarantee that the wheels will be set strictly in line with the trajectory of movement, and during the ride there will be no effect of their partial skidding, which is inevitably accompanied by the erasure of part of the tread.

For summer tires critical adjustment is not so obvious due to the increased rigidity of the treads and the operation of the wheel mainly along the entire sole of its support on the ground. In the case with winter tires this parameter often has a decisive effect due to the fact that soft protectors wear out much faster and themselves have a greater depth.

So, after 10,000 km of run, after incorrect adjustment of the toe and camber, the tires may have a difference in the height of the tread on the central and inner parts of up to 5-6 mm, which indicates the need to replace them, since such a defect cannot be restored in any way even after wheel alignment.

Correct adjustment of toe and camber at service stations

If the driver notices one-sided wear on the sole of his tire, this should signal him that he needs to contact the tire service in the near future. Otherwise, eating up the rubber can lead to more serious consequences, up to the formation of a hernia, or a sudden rupture of the wheel, which can be dangerous for the driver or his passengers, as the car loses control.