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Why eats the outer side of the wheel. Causes of tire wear on the inside

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, either on the inside or on 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 sounds like if some brake component is stuck, 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.

Vehicle tires are the only element vehicle which connects it to the road. Often car owners forget that rubber is the most important element of a car that directly affects. But when the tires wear out, every driver regretfully understands that it's time to spend money on buying new tires. . After all, sometimes tire wear can indicate possible faults car. In this case, replacing the rubber with a new one may not help. For example, with some types of breakdowns, your new tires may wear out prematurely in a short time. Let's take a look at ten of the most by which it is quite possible to determine the cause of this wear and tear, eventually finding out the technical condition of the vehicle.

1. Wear of the rubber tread in the center (in the middle)

What it looks like: With this type, as a rule, the tread in the middle of the tire is worn the most (example in the photo).

Cause: If the tire wears the most in the center of the wheel, then this indicates that the central part of the tread had the most contact with the road surface, compared to the tread closer to the edges of the rubber. Therefore, the car on which this rubber was installed did not have sufficient grip with the road surface. Accordingly, the traction of the machine was insufficient.

Most often, such wear indicates that the tire was not properly inflated. That is, the tire pressure did not correspond to the pressure recommended by the car manufacturer. This type of wear indicates that the owner of the car did not check the pressure even with sudden changes in temperature outside, at which the pressure in the tires can change significantly.

The fact is that while the tires are cold (for example, after a frosty night), the tire pressure may be lower than the manufacturer recommends. But after the start of the movement, the pressure in the tires begins to rise from the heating of the air in it. As a result, after a certain distance traveled, tire pressure may exceed the maximum allowable rate recommended by the automaker. As a result, the pumped fluid unevenly adheres to the road surface, as a result of which there will be observed uneven wear tires in the center of the tread.

Some motorists often advise to improve handling and reduce fuel consumption, on the contrary, to pump over the wheels. But this is not justified. Yes, in this way you can reduce fuel consumption a little and even improve handling a little, but in the end you will pay for it with faster tread wear.

That is, saving a little money on fuel, you will pay a lot more.

2. Tire bulging (bulging) and side wall cracks

What it looks like: Cracks and bulges on the side wall of the tires.

Cause: This usually comes from hitting a pothole (hole) in the road, a curb, etc. Usually the tire is well protected from such impacts. But if the tire is under-inflated or over-inflated, there is a great danger that the tire will be damaged as a result of the impact. Large cracks on the side wall of the tire that run along the rim of the wheel indicate that it has been operated with insufficient pressure for a long time. Small cracks on the side surface of the rubber indicate external damage or the age of the rubber (due to age, the rubber compound begins to chemically break down, causing the tire to begin to crack).

A herniated tire looks like a bulge on the surface of the rubber. Most often, a protrusion (hernia) appears on the side wall of the tire. Herniated rubber is associated with internal damage (rubber layer). This usually happens due to a side part hitting a curb, pole, etc. Most often, after an impact, a hernia (protrusion) of the wheel does not immediately appear. That is, after a stroke, you can see a hernia only after a week or even after a month.

If you notice cracks or hernia on tires, then you need to buy new tires as soon as possible.

Remember that it is very dangerous to use rubber with a hernia..

3. Dents in rubber

What it looks like: According to long-term observations, rubber with dents looks like in the photo. That is, the tire has the form of tubercles and dents.

Cause: This type of tire is usually associated with (wear or damage to the elements of the chassis of the car). Due to a malfunction of the suspension, shock mitigation on bumps is insufficient. As a result, the tire experiences an overload from impacts, taking on the maximum load. But the load is distributed unevenly over the entire tread surface. As a result, some areas of the tread take on more load than others, which contributes to the formation of dents and bumps on the tires.

Most often, this appearance of used tires is associated with poor shock absorbers. Although it is worth noting that any parts of the suspension that have failed can cause this kind of wear.

We advise you in case of detection of such deformation of the tires, to make a complete suspension and racks of the car in the technical center. We do not recommend dealing with a similar problem at a tire fitting, i.e. in order to determine the cause of the change in the shape of the wheels. It is not uncommon when tire workers do not know what can cause irregularities (dents, bumps) on the tread surface.

Most often, tire workers claim and believe that this is the cause of improper camber. But this is not a fact. As we have already said, this reason may be due to the failure of the shock absorber (s).

4. Diagonal dent with signs of tread wear

What it looks like: Diagonal dent on the tread surface with uneven wear on the tire surface.

Cause: Most often this problem occurs in rear wheels where the alignment is incorrectly set. Also, a similar deformation of the wheel can be associated with an insufficient rotation interval, and also, sometimes a similar change appearance tires may be associated with the frequent transportation of heavy loads in the trunk or in the car.

A heavy load can change the geometry of the suspension, resulting in diagonal deformation of the rubber tread surface.

5. Excessive tread wear at the edges

What it looks like: The inner and outer tread has increased wear, while the middle of the tread is significantly less worn.

Cause: This is a sure sign of insufficient. That is, the pressure does not correspond to the norm recommended by the car manufacturer. Remember that this is the most dangerous tire condition. The fact is that with reduced pressure in the tire, it is subject to greater bending. According to the laws of physics, this means that when the wheel rotates, the tire will accumulate more heat. As a result, the rubber will not evenly adhere to the road surface and, accordingly, we will get uneven rubber wear.

Also, insufficient pressure in the tires will lead to the fact that the rubber will not sufficiently soften the blows on the road, which will naturally directly affect the suspension. Over time, this harsh stress on the suspension can cause it to premature exit out of order, as well as affect the similarity collapse.

How to avoid the problem of under-inflated (insufficient) tires: We again return to the fact that every driver should regularly check the air pressure in the tires, that is, every month or every time after a sharp change in temperature outside. Also remember that cold tires (when parked at night) may show pressures lower than those recommended by the vehicle manufacturer. But during a long trip, due to the heating of the air, the pressure may exceed the norm.

The fact is that this system usually warns you of a change in tire pressure, either when there is a sharp pressure fluctuation (for example, a sharp drop in tire pressure by more than 25 percent), or when there is a significant decrease in pressure for a long time.

In other words, the tire pressure warning system can only be activated when the tire pressure is significantly lower than necessary. This means that you run the risk of driving for a long time on wheels with insufficient air pressure.

6. Convex side tread wear

What it looks like: The side blocks of the tread, usually similar to the plumage of birds, have. The lower edges of the tread blocks are rounded, while the higher edges of the blocks are sharp. Note that you cannot visually notice this kind of wear. This can be understood only when examining the tread from the edge and by touch, i.e. with hands.

Cause: With this type of tread wear, check the ball joints and wheel bearing first.

It is also necessary to check the stabilizer bushing, which, in case of failure, can lead to improper operation of the suspension stabilizer, which will eventually lead to this type of wear on the rubber tread.

7. Flat wear spots

What it looks like: One spot on the wheel has more wear than the other.

Cause: Single spots of increased wear on the surface of the tire are often found when forced hard braking or skidding, or when taxiing out of a situation in order to avoid an impact (for example, if an elk or other animal did not unexpectedly run onto the road). Especially such wear will be visible after heavy braking with simultaneous skidding, if the car is missing.

The fact is that when braking hard and taxiing in order to get away from the impact, a car without ABS is more prone to skidding with locked wheels, which will lead to something like this type of worn spot on the tire tread.

Also, similar stains can appear in cars that have been parked for a long time.

Remember that when you park your car for a long time, you risk tires where wear spots will appear on the tires of your car due to the uneven distribution of the weight of the car on them. The fact is that during parking, the rubber tread does not completely come into contact with the surface and, as a result, a certain section of rubber is deformed from a long parking.

8. Wear on the leading edge of the tread

What it looks like: The leading edge of the tread block is worn, and the rear of the tread has more sharp corners. Please note that this type of wear may not be visible during visual inspection. Therefore, check the protector with the edge by hand. If you notice that some tread corners are sharper (like hacksaw teeth) compared to other tread edges that are smoother, then this is real wear and not the norm, as many drivers usually assume.

Cause: This is the most common tire wear. Since this type of tire wear is very common and many car owners think that this is the norm, it is not. In fact, this wear indicates that the wheel has insufficient rotation. Therefore, it is necessary.

Most often, the reason is associated with the wear of the suspension elements (salint blocks), with the wear of the ball bearings, and also due to the wear of the wheel bearing.

9. Unilateral tire wear

What it looks like: One side of the tire is worn more than the other.

Cause: Usually, with this type of wear, the cause may be an incorrect alignment of the collapse of the car. This type of uneven wear of the rubber tread is due to the fact that it does not stand exactly on the road surface due to improper wheel alignment.

In order to set the wheel exactly in relation to the road surface, it is necessary to adjust the wheel alignment.

Also, similar wear can occur with damaged springs, ball joints, suspension bushings. In particular, one-sided uneven wear of the tread may appear when transporting heavy loads by car.

In addition, some models of powerful sports cars have a special wheel alignment, which leads to a similar uneven tire wear. But this is rare.

10. Tire wear to indicator

What it looks like: Many tires have wear indicators between the tread. As a rule, these are special inserts that help you determine when it is necessary to change tires for new ones. Usually the height of these inserts is lower than the height of the tread. As soon as the tire tread is equal in height to the wear indicators, it is necessary to purchase.

Cause: Typically, tire replacement should occur after the tread depth is lower than recommended by the tire manufacturer. It's not always easy to tell by eye. Therefore, many tire manufacturers install wear indicators on tires (between the tread). As soon as the tread height wears down to the height that the indicators have, then it's time to change the wheels to new ones.

A rubber tread with a certain depth is necessary in order to divert water from the tire and prevent the car from hydroplaning on wet roads.

If your tires do not have a wear indicator, then you can measure the tread depth yourself in order to understand whether it is time to buy new tires. To do this, you need to use a coin, which must be inserted into the tread with an edge and measure the depth with it. You can read more about traditional tire wear here or check out our infographic.

Attention! For summer tires the minimum tread depth must be at least 1.6, 2 or 3 mm (depending on the rubber manufacturer).

For winter tires the minimum safe tread height should be at least 4-6 mm

What can tell worn tire? We determine the malfunction by the nature of tire wear. Eats rubber from inside front

Critical adjustments

Accurate Diagnosis

True reason


Note. Not all machines have the ability to adjust all three wheel angles. In the presence of defects and the absence necessary adjustments the cause should be sought in non-original and worn suspension components (silent blocks, etc. bushings). Do not discount the factory defects of tires or incorrect adjustment of the levers of the chassis.

Topical issues

Why the similarity collapses

Verdict

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Why does the car eat rubber from the outside and inside of the front wheels? Read and Eliminate

Preliminary estimate

When the first signs of wear appear, the malfunction should be repaired as soon as possible. Most of the reasons require professional equipment. But, the initial diagnosis can be made independently. To do this, you will need to leave on a flat and empty road. Start the car at a speed of 30 km / h, then drop the steering wheel for a few seconds.

If the car does not deviate from a straight line, then the problem is in the tires. With a sharp departure to the side, the cause is in the angles of the wheels, suspension breakdowns, and steering malfunctions. Often these problems are accompanied by various knocks.

Tire pressure. When the pressure in one of the wheels decreases, a high load falls on it. Because of this, the wear of this tire increases. When the first signs of wear appear on the tires, you should first check the pressure in the wheels. You can do this at any tire shop or gas station. But, you just need to take into account that modern pressure gauges do not give one hundred percent accuracy of measurements. Therefore, it is advisable to carry out a test using 2 pressure gauges. This will increase the measurement accuracy.

Related articles:

portalvaz.ru

How to determine the cause of rapid tire wear by the condition of the tire?

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 displaced 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 an increase in fuel consumption, stopping distance and management problems.

Driving with low tire pressure is dangerous, both for the driver and for other participants. traffic. 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.

Tire dents

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 drops, and the suspension must absorb the impact of the tires on the roadway so that they do not appear dented. If there are suspension problems or undercarriage, cushioning impacts on the roadway may not be sufficient.

Conduct 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 car it 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 the need for frequent replacement of 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 bad grip with the road and tire wear in the middle.

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

tire cracks

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. 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.

Hernia on a tire

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.

Caution: It is extremely dangerous to drive a vehicle with a herniated tire. If such a problem occurs, it is immediately recommended to change the tire to a new one.

Extreme tread blocks received convex wear

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.

The leading edge of the tread is heavily worn

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.

"Bald spots" on the tire

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.

TOP 5 reasons why you eat rubber

Automobile rubber, like any thing, has its own specific resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, rubber wears out quickly. Wear can be observed on any axle and side of the car, where there is any malfunction or violation. The normal life of tires is within 4-6 years, taking into account if the rubber has been used carefully and accurately throughout this period.

Today we will find out for what reasons rubber can be eaten? Here are 5 of the most common reasons.


In the photo: rubber wear, both on the outside and inside

1. The collapse of convergence.

Eating rubber can occur due to the uneven location of the wheels in relation to the body. The camber is responsible for the position of the wheel along the vertical axis, while the convergence is responsible for the placement of the wheels when entering a turn.

Why, with incorrect indicators, after a while it can begin to eat up rubber from all sides and on different wheels. For example, if wear is observed on the inside, then too much inclination has been made. This position of the wheels is called negative camber. Accordingly, if the outer side is worn, then this is a positive collapse. So the wheels are tilted in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, on the other from the outside.


Positive and negative camber

Why do the camber settings go astray? There are several reasons:

Not timely control, long operation of the car on bad roads.

Hitting curbs, potholes, and other potholes and bumps.

After repair of the suspension, replacement of levers, silent blocks, steering tips, rods, etc.

Deterioration of suspension elements.

bent jet thrust, there is play in the bushings, etc.

Bent bridges, the hull itself.

2. Low or high tire pressure.

When operating wheels with low pressure, accelerated wear begins on that part of the tire that breaks and flexes. With low pressure:

The rim begins to press on the surface of the tire;

The tire structure flexes at the edges.


Tire pressure

That is, it is clear that with insufficient pressure, the side part often wears out, both from the inside and from the outside. With excess pressure, respectively, wear will be observed in the middle of the tire.

3. Uneven pressure.

A common reason for those motorists who do not monitor the car and tire pressure in principle. The uneven pressure of the wheels on the same axle almost always leads to wear on one side or the other, depending on the operating conditions. For example, on the right front wheel pressure is 1.5 Ba, on the opposite side it is already 2.0 Ba. That is, there is a difference, which means that uneven wear occurs. In such cases, often the car begins to "drive" in one of the directions, as a rule, where there is less pressure. There is also a “zhor” of rubber.

4. Improper storage tires in summer or winter season. It is known that it is impossible to store tires one on top of the other, especially if they are stored with dressed disks. Under the pressure of the weight, the tires sag to one side. After a long “laying” in this position, the tires in most cases can no longer be restored.


Proper tire storage

The correct method of storing tires involves mounting the wheels on edge, that is, as the wheels are on the car, so you need to store them. Periodically scrolling so as not to get stuck. Or better yet, hang it up. If the tires are dressed on disks, then you can lay them flat.

5. Aging, manufacturing defects.

It is rare now that a tire is used beyond its expiration date, rubber tends to wear out sooner from overuse. But, still, do not discard this reason. Check for cracks, pores on the rubber. Violation of tightness, all this directly affects the operation of tires. If the rubber is damaged, moisture gets inside, which eventually leads to the destruction of the metal shell of the tire, the so-called cord.


Cracks in rubber

According to the standards of manufacturers, the operation of tires whose age exceeds ten years is prohibited.

Of course, this is not the whole list of reasons why rubber is eaten away. There are a number of other problems, but they are less common. So:

Violation of the shape of the disc, for example, after a strong blow to the curb, pit, etc.


Disk bent

Suspension damage and malfunction, such as a factory or purchased defect knuckle, levers.

Damage to the strut, for example, bent after a strong impact.


Bent shock absorber strut

A worn hub bearing, of course, the play in this case should be strong, it will be difficult not to notice it. But, nevertheless, when checking by the elimination method, it will not be superfluous to check this node as well.

After the impact, the tire moved off the disk, changed the landing geometry. Drive on the “tavern” or remove the wheels yourself, spin it, if the tire has moved out, it will be noticeable.

Changing the geometry of the body. After a strong impact (accident) or overturning of the machine. It can only be determined with a special tool. It is not uncommon that the reason for the violation of the body geometry is that the machine is simply welded from several parts. That is, "constructor", such are common in the Far East, where it is cheaper to overtake a cut from Japan, and then, having welded it, "push" it like a normal car.

Conclusion

As a result, I would like to emphasize the importance of periodic suspension diagnostics, checking the camber, tire pressure. By the way, experts and manufacturers recommend checking the collapse on average every 3,000-5,000 km, given pavement perhaps more often.

During the noticed reason, it will protect against premature rubber burning, and also allow, possibly, to save the health, life of the driver and passengers. Good luck on the roads.

autoexperts.ru

. Eats rubber from the outside in front

Why does it eat rubber from the inside in front or from the outside on both wheels

Tires are a consumable and seasonal material. It is theoretically difficult to predict the degree of their wear depending on the mileage. Almost everything depends on the rubber composition of the mixture. Over the years, the average service life is about 5-6 years. This is the limit, upon reaching which the product will acquire cracks, and if they are present, there is a high risk of getting into a dangerous situation. However, the tire may lose its proper appearance much earlier.

Premature wear or eating rubber on the car from the outside in front: treatment

A common cause of short wheel change intervals is uneven tread wear. Installing a new set of tires can rarely correct the situation, since a malfunction is more often the result of incorrect machine settings and untimely care for it. Even a simple tire pressure monitoring procedure can prevent untimely exit failure of a tire industry product.

Critical adjustments

The front suspension is a complex mechanism, but amenable to adjustment. Therefore, if it eats rubber from the inside in front, it is necessary first of all to analyze its current settings. Yes, and premature wear of the outer shoulder is also a reason to inspect the relative location of the front suspension arms.

Such a chassis arrangement is designed not only to optimize the wear resistance of tires. First of all, other goals are pursued - increasing the stability of the car and ensuring easy handling. In the process of adjustment, it is customary to distinguish between three types of parameters:

  • Camber - the angle between the longitudinal plane of the wheel and the vertical axis or the position of the wheels in relation to the road surface. Affects the area of ​​the contact patch with the road. Preferably a negative value.
  • Convergence - the position of the tires relative to the horizontal plane. Required to compensate for the elastic movements of rubber parts when transferring traction to the wheels.
  • Caster - the angle of inclination of the transverse vertical plane of the wheel relative to the vertical axis. Needed to ensure self-return of the steering wheel when exiting a turn.

Accurate Diagnosis

One-sided wear of the tread in most cases indicates the incorrect setting of the above settings. In particular, rapid wear of the outer shoulders of a tire causes increased positive camber. In this case, the top of the tire is tilted away from the center of the car. There is no universally correct adjustment - each vehicle has its own set of standard values.

What to do if you eat rubber from the inside in front: possible causes

Often there is a non-standard situation in the form of the presence of different wear on tires installed on the same axle. Let's say the right wheel "ate" from the outer end, the left - from the inner. The exact reason is an incorrectly performed operation to adjust the geometry of the relative position of the suspension elements.

True reason

The list of actions in the case when rubber is eaten from the outside in front is partly relevant when revealing rapid wear of the inner shoulders. When identifying increased abrasion of the treadmill from the inner edge, the nature of the malfunction should be attributed to one of the groups:

  1. The side checkers are erased evenly - the camber angle is incorrectly adjusted.
  2. Sawtooth wear "herringbone" - convergence does not correspond to the norm.

Variants of combining the fixed types of geometry of the worn tread are not excluded. Under such circumstances, the masters talk about the incorrect setting and collapse, and convergence.
Note. Not all machines have the ability to adjust all three wheel angles. In the presence of defects and the absence of the necessary adjustments, the cause should be sought in non-original and worn suspension components (silent blocks, etc. bushings). Do not discount the factory defects of tires or incorrect adjustment of the levers of the chassis.

There are frequent cases when it “eats” rubber from the back on one side. Worn silent blocks rear suspension- probable cause of the problem. However, tuned racks and various spacers can also cause deviations in the geometry of the tires used.

Topical issues

Why the similarity collapses

A bad road has a negative impact not only on the resource of chassis components. It also leaves a negative imprint on their mutual arrangement. Timely control of adjustments is necessary in the following cases:

  • After a strong impact on the curb, pits, potholes and other irregularities in the roadway.
  • At the end of the replacement of suspension elements.

Attention! Wear on the consumable components of the suspension structure also knocks down the installation angles.

The components are original and the alignment is correct: the tire still wears unevenly

It is likely that the wheel bearing has failed. In the presence of such a malfunction, it is difficult not to notice the play, shaking the wheel in different directions. If you can deal with this ailment, then it is difficult to change the incorrect body geometry. And due to the bent bearing part, there may well be rubber on the inside of the rear or front of the car.

Premature wear does not meet the above criteria

Above, cases of asymmetric "eating" of rubber products are analyzed. The following cases of tread wear should be classified as symmetrical:

  • Both sides: low tire pressure.
  • Center: increased pressure in the tires.

Often there are situations when on the front / rear axle one of the tires is worn out faster than the other. The only argument in favor of this state of affairs is the different pressure in the tires located on the same axle. As a result of this, the car drives to the side and it is observed increased friction in a wheel with less air volume.

Verdict

Possible malfunctions that cause uneven tread wear are:

  • Eats rubber from the inside edge. If a “herringbone” is observed on the treadmill, the problem is in the wrong convergence; uniform wear is a matter of a false camber angle.
  • Eats rubber from the outer end - positive camber is to blame.

Alignment settings are within tolerance - see the following:

  • The presence of wear rubber suspension units.
  • The correctness of the form of the flanges of the rack.
  • Compliance with the design of support bearings and various spacers to the requirements of the manufacturer.

The asymmetric geometry of the working part of the tire can also be caused by a damaged body. Another likely cause is a noticeable play in the hub bearing.

Why does the car eat rubber from the outside and inside of the front wheels? Read and Eliminate »

Why does the car eat rubber from the outside and inside of the front wheels? Read and Eliminate

Many motorists are interested in why the car eats rubber from the outside and inside of the front wheels. This is a fairly common problem. Moreover, the difficulty lies in the inability of the masters to accurately determine the cause of the breakdown, and yet it is far from always lying on the surface. Therefore, it is desirable for the owner to know the main types of breakdowns that lead to increased wear of parts. Some of the faults can be fixed right in the garage. This will avoid unnecessary trips to the service, although no one canceled the diagnostics. Knowing the reasons, you can avoid mistakes from negligent or inept mechanics.

Why does the car eat rubber from the outside and inside of the front wheels? Everyone knows that car tires wear out over time, and this primarily concerns the front wheels. There are several factors at once that influence this process. Actually, not too active tire wear for a car is the norm. First of all, the tires on the inside of the wheel are erased. This is due to the presence of castor. In theory, in normal conditions wear on the wheel becomes noticeable only after 2-3 seasons. With faster wear, you need to look for the cause of the problem.

preliminary

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The hydrometeorological center warned of a decrease in the grain harvest / Surfingbird

The grain harvest in Russia this year will be 15-20% lower than last year, Dmitry Kiktev, head of the Russian Hydrometeorological Center, believes. Last year, Russia harvested a record 135.4 million tons of grain


The hydrometeorological center expects that the grain harvest in Russia this year will be 15-20% lower than last year. This is with reference to the words of the acting director of the Hydrometeorological Center of Russia Dmitry Kiktev, Interfax reports.

"Forecast of the Hydrometeorological Center - this year's harvest for cereals and legumes is expected to be approximately 15-20% lower than last year," Kiktev said.

Kiktev also recalled that in the first half of June, atmospheric and soil droughts were noted in the North Caucasus, in the Volga and Southern federal districts. According to him, the heavy rainfall that has occurred in the past two weeks in some areas "was unevenly distributed, very variegated."

However, now the weather conditions for grain ripening in Russia are assessed by meteorologists as "normal" and "satisfactory". “That is, the situation is not alarming,” he added, recalling that in 2017 Russia harvested a record harvest in its history.

According to Rosstat, 135.4 million tons of grain were harvested in 2017, more than in the entire history of Russia.

Earlier, the head of the Ministry of Agriculture, Dmitry Patrushev, said that this year Russia expects a harvest of 100 million tons of grain due to drought in the southern regions of Russia. At the same time, according to him, grain exports from Russia this year will amount to 40-45 million tons.

“About 100 million tons - we hope that we will collect such a volume of grain this year. At the same time, one must clearly understand that the forecast for the future may be changed depending on how the weather conditions develop, ”Patrushev said in early July (quoted by TASS).

The minister noted that the situation with the forecast for grain changes regularly. “There will be an opportunity to collect more, of course, we will make every effort and we will do it,” Patrushev added.

surfingbird.com

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Automobile rubber, like any thing, has its own specific resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, rubber wears out quickly. Wear can be observed on any axle and side of the car, where there is any malfunction or violation. The normal life of tires is within 4-6 years, taking into account if the rubber has been used carefully and accurately throughout this period.

Today we will find out for what reasons rubber can be eaten? Here are 5 of the most common reasons.

1. The collapse of convergence.

Eating rubber can occur due to the uneven location of the wheels in relation to the body. The camber is responsible for the position of the wheel along the vertical axis, while the convergence is responsible for the placement of the wheels when entering a turn.

Why, with incorrect indicators, after a while it can begin to eat up rubber from all sides and on different wheels. For example, if wear is observed on the inside, then too much inclination has been made. This position of the wheels is called camber. Accordingly, if the outer side is worn, then this is a positive collapse. So the wheels are tilted in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, on the other from the outside.

Why do the camber settings go astray? There are several reasons:

Not timely control, long operation of the car on bad roads.

Hitting curbs, potholes, and other potholes and bumps.

After repair of the suspension, replacement of levers, steering, rods, etc.

Deterioration of suspension elements.

Tie rods are bent, there is play in the bushings, etc.

Bent bridges, the hull itself.

2. Low or high tire pressure.

When operating wheels with low pressure, accelerated wear begins on that part of the tire that breaks and flexes. With low pressure:

The rim begins to press on the surface of the tire;

The tire structure flexes at the edges.

That is, it is understandable that if insufficient, the side part often wears out, both from the inside and from the outside. With excess pressure, respectively, wear will be observed in the middle of the tire.

3. Uneven pressure.

A common reason for those motorists who do not monitor the car and tire pressure in principle. The uneven pressure of the wheels on the same axle almost always leads to wear on one side or the other, depending on the operating conditions. For example, on the right front wheel the pressure is 1.5 Ba, on the opposite wheel it is already 2.0 Ba. That is, there is a difference, which means that uneven wear occurs. In such cases, often the car begins to "drive" in one of the directions, as a rule, where there is less pressure. There is also a “zhor” of rubber.

4. Incorrect storage of tires in summer or winter season. It is known that it is impossible to store tires one on top of the other, especially if they are stored with dressed disks. Under the pressure of the weight, the tires sag to one side. After a long “laying” in this position, the tires in most cases can no longer be restored.

The correct method of storing tires involves mounting the wheels on edge, that is, as the wheels are on the car, so you need to store them. Periodically scrolling so as not to get stuck. Or better yet, hang it up. If the tires are dressed on disks, then you can lay them flat.

5. Aging, manufacturing defects.

It is rare now that a tire is used beyond its expiration date, rubber tends to wear out sooner from overuse. But, still, do not discard this reason. Check for cracks, pores on the rubber. Violation of tightness, all this directly affects the operation of tires. If the rubber is damaged, moisture gets inside, which eventually leads to the destruction of the metal shell of the tire, the so-called cord.

Cracks in rubber

According to the standards of manufacturers, the operation of tires whose age exceeds ten years is prohibited.

Of course, this is not the whole list of reasons why rubber is eaten away. There are a number of other problems, but they are less common. So:

Violation of the shape of the disc, for example, after a strong blow to the curb, pit, etc.

Suspension damage and malfunction, for example, a factory or acquired defect, levers.

Damage, for example, bent after a strong impact.

A worn hub, of course, the backlash in this case should be strong, it will be difficult not to notice it. But, nevertheless, when checking by the elimination method, it will not be superfluous to check this node as well.

After the impact, the tire moved off the disk, changed the landing geometry. Drive on the “tavern” or remove the wheels yourself, spin it, if the tire has moved out, it will be noticeable.

Changing the geometry of the body. After a strong impact (accident) or overturning of the machine. It can only be determined with a special tool. It is not uncommon that the reason for the violation of the body geometry is that the machine is simply welded from several parts. That is, a “constructor”, such are common in the Far East, where it is cheaper to overtake a cut from Japan, and then, having welded it, “push” it like a normal car.

Conclusion

As a result, I would like to emphasize the importance of periodic suspension diagnostics, checking the camber, tire pressure. By the way, experts and manufacturers recommend checking the collapse on average every 3,000-5,000 km, given the road surface, perhaps more often.

During the noticed reason, it will protect against premature rubber burning, and also allow, possibly, to save the health, life of the driver and passengers. Good luck on the roads.