Car tires, like any thing, have their own specific resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, rapid wear of the rubber occurs. Wear can be observed on any axle and side of the car, where there is any malfunction or violation. The normal service life of tires is within 4-6 years, taking into account if the tires were used carefully and carefully throughout this period.
Today we will find out for what reasons rubber can be eaten? Here are the 5 most common reasons.
1. Wheel alignment.
Rubber eating can occur due to uneven placement of the wheels in relation to the body. Camber is responsible for the position of the wheel along the vertical axis, while toe is responsible for the placement of the wheels when entering a turn.
Why, if the indicators are incorrect, after a while it can begin to eat up rubber on all sides and on different wheels. For example, if wear is observed on the inside, it means that the angle has been tilted inward too much. This position of the wheels is called camber. Accordingly, if there is wear on the outside, then this is positive camber. This means the wheels are tilted in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, and on the other from the outside.
Why do the wheel alignment settings get lost? There are several reasons:
Lack of timely control, long-term operation of the car on bad roads.
Hitting a curb, a hole, or other potholes or uneven surfaces.
After repairing the suspension, replacing levers, steering, rods, etc.
Wear of suspension elements.
The reaction rods are bent, there is play in the bushings, etc.
Bent bridges, the hull itself.
2. Low or high tire pressure.
When using wheels with low pressure, accelerated wear begins on the part of the tire that breaks and bends. At low pressure:
The rim begins to press on the surface of the tire;
The tire structure sags at the edges.
That is, it is clear that if it is insufficient, the side part often wears out, both on the inside and on the outside. If there is excess pressure, wear will be observed in the middle of the tire.
3. Uneven pressure.
A common reason for those motorists who do not monitor their car and tire pressure in general. Uneven tire pressure on one axle almost always leads to wear on one side or the other, depending on operating conditions. For example, on the right front wheel the pressure is 1.5 Ba, on the opposite one it is already 2.0 Ba. That is, there is a difference, which means uneven wear occurs. In such cases, the car often begins to “drive” in one direction, usually where there is less pressure. Rubber burns are also observed there.
4. Improper storage of tires in the 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 the rims on. Under weight pressure, the tires sag to one side. After a long period of lying in this position, the tires in most cases cannot be restored.
The correct method of storing tires involves installing the wheels on edge, that is, just as the wheels are on the car, they need to be stored. Scrolling periodically so as not to get caught. Or better yet, hang it up. If the tires are on rims, then you can lay them flat.
5. Aging, manufacturing defects.
Nowadays, it is rare to use tires beyond their expiration date; rubber, as a rule, becomes unusable earlier due to excessive use. But still, don’t dismiss this reason. Check if any cracks or pores have appeared on the rubber. Violation of tightness, all this directly affects the operation of the tires. When the rubber is damaged or the seal is broken, moisture gets inside, which over time leads to the destruction of the metal shell of the tire, the so-called cord.
Cracks in rubber
According to manufacturers' standards, the use of tires that are more than ten years old is prohibited.
Of course, this is not the entire list of reasons why rubber is eaten. There are a number of other problems, but they are less common. So:
Disturbance in the shape of the disc, for example, after a strong impact on a curb, hole, etc.
Damage and malfunction of the suspension, for example, a factory or acquired defect, levers.
Damage, for example, bent after a strong blow.
A worn hub, of course, the play in this case should be strong, it will be difficult not to notice it. But, still, when checking by exclusion, it would not be superfluous to check this node as well.
After the impact, the tire slipped off the rim and changed the landing geometry. Hit the tire or remove the wheels yourself, spin it, if the tire has slipped, it will be noticeable.
Changing body geometry. After a strong impact (accident) or car overturning. 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 car is simply welded from several parts. That is, “constructor”, such are common in the Far East, where it is cheaper to import a cut from Japan, and then, after welding it, “push” it, like a normal car.
Conclusion
As a result, I would like to emphasize the importance of periodic diagnostics of the suspension, checking wheel alignment, and tire pressure. By the way, experts and manufacturers recommend checking the camber on average every 3,000-5,000 km, taking into account the road surface, perhaps more often.
When the cause is noticed, it will protect you from premature tire burns, and will also allow you, possibly, to preserve the health and life of the driver and passengers. Good luck on the roads.
Tires are one of the most wear-and-tear parts of a car. But what to do if they wear unevenly. First, you need to correctly identify this uneven tire wear in order to determine its causes. How exactly do tires wear unevenly?
- in various places around the circumference - at certain points of the tread it is worn heavily (spotted),
- on different sides of the tire - the outer, inner side of the tire or its central area along the entire circumference,
- one tire wears out much faster than the others,
- a pair of front or rear tires deteriorate faster.
Let's now give the reasons and consider the nature of tire wear for each reason. 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 set will certainly lead to uneven abrasion. Trying to identify this cause based on specific worn wheels is a waste of time. The pressure can change differently in each wheel, even if you only pump up all four wheels.
But this reason can be determined by the wear pattern of the tread itself. The fact is that an underinflated tire, as you know, sags, and therefore the sides of the working surface wear out faster. But in overinflated tires, on the contrary, the central part wears out faster, since when there is excess pressure, it is this part that pushes out the most, as a result, the most load is placed on the axles of the circle.
The result of driving on overinflated (top) and underinflated (bottom) tires
Only certain areas on the tire are worn. The reason is a deformed disk or imbalanced wheels.
A deformed (bruised, figure eight, etc.) disc can also often cause uneven tire wear. In this case, wear will occur in certain places (spots) of the tread. If the disk is “octagonal,” 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 a diametrically opposite place on the tire and on the opposite side. When the disc 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 cause of increased wear can be the rubber itself - its defect in the form of a burst metal cord. The cord may burst if the rubber has already worn out significantly.
Only the inner or outer side of the front wheels wears out. The reason is wheel alignment
If the front wheel alignment is off, it means that your two front wheels are not parallel to each other. They either “bump” - look forward, slightly towards the center with their projection direction, or are tilted in one direction or another relative to the vertical axis.
As a result of this, you get excessive wear on the tires 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.
Only one wheel wears out. Reason - something happened in the suspension or the brakes are sticking
If any component in your suspension is worn or weakened, such as a leaking strut, it can cause excessive wear on the tires on that particular wheel. If any part of the suspension is not working properly, the wheel will bounce more or will go over bumps in the road more harshly. This creates additional friction on the tire, which causes a significant reduction in tire life and tire tread condition.
Here, as a rule, uniform tire wear occurs on only one wheel.
Now imagine driving around all day with little pressure on the brake with your foot. This is what it's like if a brake component, such as a caliper (its piston), seizes. This usually happens only on one wheel, and because of this it wears out faster (uniform wear occurs).
Only the front wheels wear out. Cause - something happened in the helm
Almost every part of the steering system can also cause tire wear. But we will talk here only about the front wheels, and the nature of wear can be completely different: either in spots or on one side of the tire along the entire circumference of the tread.
A car's tires are the only element of the vehicle that connects it to the road. Car owners often forget that tires are the most important element of a car, which directly affects its performance. But when the tires wear out, every driver realizes with disappointment that it’s time to spend money on buying new tires. . After all, sometimes tire wear can indicate possible car malfunctions. In this case, replacing tires with new ones may not help. For example, with some types of breakdowns, your new tires may wear out prematurely in a short period of time. Let's look at the ten most important reasons for which it is quite possible to determine the cause of this wear and tear, ultimately finding out the technical condition of the vehicle.
1. Tire tread wear in the center (middle)
What it looks like: With this type, as a rule, the tread in the middle of the tire is most worn out (example in the photo).
Cause: If a tire wears the most in the center of the wheel, it means that the center of the tread had the most contact with the road surface, compared to the tread closer to the edges of the rubber. Consequently, the car on which these tires were installed did not have sufficient grip on the road surface. Accordingly, the vehicle's traction was insufficient.
Most often, such wear indicates that the tire was not inflated correctly. That is, the tire pressure did not correspond to the pressure recommended by the car manufacturer. This type of wear indicates that the car owner did not check the pressure and during 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 you start driving, the pressure in the tires begins to increase due to the heating of the air in it. As a result, after a certain distance traveled, the tire pressure may exceed the maximum permissible standard recommended by the car manufacturer. As a result, the overinflated tire adheres unevenly to the road surface, resulting in uneven tire wear in the center of the tread.
To improve handling and reduce fuel consumption, some car enthusiasts often recommend inflating the wheels. But this is not justified. Yes, 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 rapid tread wear.
That is, if you save a little money on fuel, you will pay a lot more.
2. Tire herniation (bulging) and sidewall cracks
What it looks like: Cracks and bulges on the sidewall of the tires.
Cause: This usually occurs from hitting a pothole (hole) on the road, curb, etc. Usually the tire is well protected from such impacts. But if the tire has insufficient pressure or is overinflated, then as a result of the impact there is a great danger that the tire will be damaged. Large cracks on the sidewall of the tire that run along the wheel rim indicate that it was operated for a long time with insufficient pressure. 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 degrade, causing the tire to begin to crack).
A tire herniation looks like a bulge on the surface of the rubber. Most often, a protrusion (hernia) appears on the side wall of the tire. A rubber herniation is associated with internal damage (to the rubber layer). This usually occurs due to a side impact with a curb, pole, etc. Most often, after an impact, a hernia (protrusion) of the wheel does not immediately appear. That is, after a blow, you can see the hernia only after a week or even after a month.
If you notice cracks or a hernia on your tires, you need to buy new tires as soon as possible.
Remember that using rubber with a hernia is very dangerous.
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 shape of bumps and dents.
Cause: This type of tire is usually associated with (wear or damage to the elements of the vehicle's chassis). Due to a faulty suspension, shock mitigation on bumps is insufficient. As a result, the tire experiences 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 stress than others, which contributes to the formation of dents and bumps in 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 such wear and tear.
We advise you, if such tire deformation is detected, to have the vehicle's suspension and struts completed at a technical center. We do not recommend taking this problem to a tire shop, i.e. in order to determine the reason for the change in the shape of the wheels. It is not uncommon for tire service workers to not know what can cause irregularities (dents, bumps) to appear on the tread surface.
Most often, tire service workers claim and believe that this is the reason for the incorrect alignment. But this is not a fact. As we have already said, this reason may be related to the failure of the shock absorber(s).
4. Diagonal dent with signs of tread wear
What it looks like: A diagonal dent in the tread surface with uneven wear on the tire surface.
Cause: Most often this problem occurs on the rear wheels, where the wheel alignment is incorrectly set. Also, such a deformation of the wheel may be associated with an insufficient rotation interval, and sometimes such a change in the appearance of the tire may be associated with frequent transportation of heavy loads in the trunk or inside the car.
A heavy load can change the suspension geometry, causing diagonal deformation of the rubber tread surface.
5. Excessive tread wear around the edges
What it looks like: The inner and outer tread have increased wear, while the middle of the tread is worn significantly less.
Cause: This is a sure sign of insufficiency. That is, the pressure does not correspond to the standard recommended by the car manufacturer. Remember that this is the most dangerous condition of tires. The fact is that with reduced tire pressure, it is subject to greater bending. According to the laws of physics, this means that as the wheel rotates, the tire will accumulate more heat. As a result, the rubber will not adhere evenly to the road surface and, accordingly, we will get uneven tire wear.
Also, insufficient pressure in the tires will lead to the fact that the rubber will not sufficiently soften shocks on the road, which will naturally directly affect the suspension. Over time, this harsh impact on the suspension can lead to premature failure and also affect wheel alignment.
How to avoid the problem of under-inflated (insufficient pressure) tires: We again return to the fact that every driver should regularly check the air pressure in the wheels, 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 pressure lower than that recommended by the vehicle manufacturer. But during a long trip, due to heating of the air, the pressure may exceed the norm.
The fact is that this system, as a rule, warns you about changes in tire pressure, either when there is a sharp fluctuation in pressure (for example, a sharp drop in tire pressure by more than 25 percent), or when the pressure drops significantly over a long period of time.
In other words, the tire pressure warning system can only operate when the tire pressure is significantly less than necessary. This means that you risk driving for long periods of time on wheels with insufficient air pressure.
6. Convex wear on side tread
What it looks like: The side tread blocks usually look like bird plumage and have . The lower edges of the tread blocks are rounded, while the higher edges of the blocks are sharp. Please note that you cannot notice this type of wear visually. This can only be understood by examining the tread from the edge and by touch, i.e. using your hands.
Cause: For this type of tread wear, first check the ball joints and wheel bearing.
It is also necessary to check the stabilizer bushing, which, if it fails, can lead to improper operation of the suspension stabilizer, which will ultimately lead to this type of rubber tread wear.
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 often occur when forced to sharply brake or skid, or when steering out of a situation in order to avoid an impact (for example, if a moose or other animal suddenly runs out onto the road). This kind of wear will be especially visible after sharp braking with simultaneous skidding, if the car is missing.
The fact is that when braking sharply and steering out in order to avoid an impact, a car without ABS is more susceptible to skidding with locked wheels, which will lead to something like this type of worn spot on the tire tread.
Similar stains can also appear in cars that have been parked for a long time.
Remember that when you park your car for a long time, you risk your tires, where wear marks 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 come into complete contact with the surface and, as a result, a certain section of the rubber is deformed from long-term parking.
8. Wear of 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 sharper corners. Please note that this type of wear may not be visible upon visual inspection. Therefore, check the edge of the protector with your hand. If you notice that some corners of the tread are sharper (like the teeth on a hacksaw) compared to other edges of the tread 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 occurs very often and many car owners think that this is the norm, it is not so. In fact, this wear indicates that the wheel is not rotating enough. Therefore, it is necessary.
Most often, the reason is associated with wear of suspension elements (sustain blocks), wear of ball joints, and also due to wear of the wheel bearing.
9. One-sided tire wear
What it looks like: One side of the tire is worn more than the other.
Cause: Typically, with this type of wear, the cause may be an improper alignment of the car. This type of uneven wear on the tire tread is due to the fact that the tire is not level on the road surface due to improper wheel alignment.
In order to align the wheel evenly in relation to the road surface, it is necessary to adjust the wheel alignment.
Similar wear can also occur with damaged springs, ball joints, and suspension bushings. In particular, one-sided uneven tread wear may occur when transporting heavy loads by car.
In addition, some models of powerful sports cars have a special wheel alignment, which leads to similar uneven tire wear. But this is rare.
10. Tire wear to indicator
What it looks like: Many tires have wear indicators between the treads. As a rule, these are special inserts that help you determine when you need to change your tires to new ones. Typically, the height of these inserts is lower than the height of the tread. As soon as the tire tread height is equal to the wear indicators, you need to purchase.
Cause: Typically, tire replacement should occur after the tread depth has dropped below what the tire manufacturer recommends. This is not always easy to determine by eye. Therefore, many tire manufacturing companies install wear indicators on tires (between the tread). Once the tread depth has worn down to the height indicated by the indicators, then it is time to replace the wheels with new ones.
A rubber tread with a certain depth is necessary in order to drain water away from the tire and prevent the car from hydroplaning on a wet road.
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 edgewise into the tread and measure the depth with it. You can read more about traditional tire wear here or check out our infographics.
Attention! For summer tires, the minimum tread depth must be at least 1.6, 2 or 3 mm (depending on the tire manufacturer).
For winter tires, the minimum safe tread height should be at least 4-6 mm
What can a worn tire tell you? We determine the malfunction by the wear pattern of the tire. Eats rubber from the inside of the front
Critical adjustments
Accurate diagnosis
The real reason
For your information. Not all vehicles provide the ability to adjust all three wheel angles. If there are defects and there are no necessary adjustments, the cause should be sought in non-original and worn suspension components (silent blocks and other bushings). Factory defects in tires or incorrect adjustment of landing gear levers should not be discounted.
Current issues
Why does the wheel alignment go wrong?
Verdict
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Why does a car eat rubber on the outer and inner sides of the front wheels? Read and eliminate
Preliminary estimate
When the first signs of wear appear, the problem 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 drive onto a flat and empty road. Start the car at a speed of 30 km/h, then leave the steering wheel for a few seconds.
If the car does not deviate from straight-line movement, then the problem is in the tires. If you suddenly move to the side, the reason is the angles of the wheels, suspension failures, and steering failure. Often the listed problems are accompanied by various knocking noises.
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 your tires, you should first check the tire pressure. This can be done at any tire shop or gas station. But you just need to take into account that modern pressure gauges do not provide one hundred percent measurement accuracy. Therefore, it is advisable to check using 2 pressure gauges. This will increase the accuracy of measurements.
Related articles:
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How to determine the cause of rapid tire wear based on the condition of the tire?
A small number of car enthusiasts take the process of tire wear seriously. When rubber loses its grip, it is customary to replace it, but the exact replacement cycle is not so easy to determine. Even if you keep your vehicle's tires at the correct pressure throughout their life, they can wear out much faster than their manufacturer predicts. This is due to the fact that the car has certain faults that lead to early wear of the rubber tread.
By looking at the wear pattern of a car tire, you can find out what specific fault is in the engine, suspension or other components. After eliminating it, the tires will last much longer, and the car will operate in the correct mode.
Heavy wear on the inside or outside of the rubber
The most common problem among motorists is tire wear on one side. “Rubber” can wear out more on the inside or outside, and after a while it will become unsuitable for driving on roads. This problem reveals to the driver the fact that his car has an incorrect wheel alignment.
If the camber is incorrect and the top of the wheel is offset from the center of the car or towards the center of the car by several degrees, wear on one side of the tire will increase. In some situations, deviation from zero camber is necessary for the driver, for example, if he participates in racing. By setting negative camber, it is possible to improve the contact patch of the tire with the road surface, and the car corners better.
In urban conditions, cars must be installed with zero camber, otherwise there will be problems with directional stability, and even driving on a straight road will become unstable. To solve the problem of one-sided internal or external tire wear, it is necessary to perform a vehicle alignment.
Increased wear on the outside and inside of the tire
When the tread of a car tire wears heavily at the edges, but remains intact in the center, this clearly indicates problems with the pressure in the “rubber” during 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 a car with low tire pressure is dangerous, both for the driver and for other road users. If you regularly maintain tire pressure at the same level, but still have similar wear, we advise you to check with the vehicle information to ensure that the tire pressure you have selected is correct. It is also recommended to change the tire inflator, which may show incorrect results.
Tire dents
Even the rubber surface of tires can become covered with small dents that change the shape of the tire and render it unusable for use. The edges of the tires form bumps and depressions, and this is due to problems with the suspension.
When driving on the road, the car constantly jumps and falls, and the suspension must absorb the impact of the tires on the road surface so that they do not develop dents. If there are problems with the suspension or chassis, the cushioning of impacts on the road surface may not be sufficient.
Not every driver can carry out a complete diagnosis of the suspension and chassis of a car on their own. That is why in such a situation it is better to contact specialists 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 dent and severe tread wear
This problem is relevant for the rear axle of a front-wheel drive car. Most often it occurs when a passenger car is operated in cargo mode, that is, it often transports weights for which it is not designed. Taxi drivers can also often experience a similar problem.
If the car is not used as a means of constantly transporting heavy loads, but at the same time it has a similar problem, the reason for this is incorrect alignment. As a result, before installing new tires on a 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 in driving on roads with high tire pressure. Double-check that you are actually inflating the tire to the level recommended by the manufacturer of your car model.
Some experienced drivers claim that driving on an overinflated tire consumes less gas, and this is true. This is due to the fact that the car loses good grip on the road, and its entire mass is transferred to the middle of the tire, pressing it against the road surface. Such savings in gasoline will result in the need for frequent replacement of tires due to their rapid wear.
It is worth noting that in the cold season, tire pressure may decrease due to weather factors. If you go on a trip on “icy” tires, then after some time you start driving, the air in the tires will begin to seriously heat up, and this can lead to exceeding the pressure recommended by the car manufacturer. As a result, the driver will experience poor grip and tire wear in the middle.
To avoid problems with increased tire pressure when accelerating a car in the cold season, you should check that the tire pressure corresponds to the recommended value before each trip.
Tire cracks
Another problem that can result from high or low tire pressure is cracking. A tire hitting a curb or hole is a stressful condition for the tire, which it can withstand 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 at insufficient pressure.
Also, small cracks may appear on the tire, and from them you can tell that the rubber has reached the end of its service life. In such tires, the chemical decomposition of elements begins, which allow it to maintain its properties. It follows from this that the use of such tires is prohibited.
Hernia on the splint
When a tire with high pressure hits a hard surface, a hernia may form inside it. This occurs due to damage to the inner layer of rubber, and the appearance of a hernia may not be noticed immediately. After a week or two or even more, the hernia will appear as a bulge on one of the side edges of the tire.
Warning: Driving a car with a flat tire is extremely dangerous. If such a problem occurs, it is immediately recommended to change the tire to a new one.
The outer tread blocks have convex wear
Diagnosing such a problem is the most difficult because it is not visible visually. To determine the presence of convex wear on the side edges of the tread, you need to run your finger along them. You can feel that the low edges of the tread block are worn into a rounded shape, while the high edges, on the contrary, are pointed.
If a similar problem occurs on your car, you need 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 badly worn
One of the most common problems is leading edge tread wear. The main problem is that most drivers believe that tires should wear out like this during operation, but this is not the case. This wear indicates that the vehicle has some problems with the suspension. Most likely we are talking about a malfunction of ball joints 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, there is a problem.
"Bald spots" on the tire
If there are certain areas on a car tire that are more worn 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. During rare (including emergency) braking, if the car does not have an ABS system, the wheels are blocked and the car slips on the tire along the road surface. Sliding leads to an increase in tire temperature and immediate wear.
In addition, spots on your car's tires can appear if it sits 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 become deformed over time.
TOP 5 reasons why he eats rubber
Car tires, like any thing, have their own specific resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, rapid wear of the rubber occurs. Wear can be observed on any axle and side of the car, where there is any malfunction or violation. The normal service life of tires is within 4-6 years, taking into account if the tires were used carefully and carefully throughout this period.
Today we will find out for what reasons rubber can be eaten? Here are the 5 most common reasons.
In the photo: rubber wear, both external and internal. 1. Wheel alignment.
Rubber eating can occur due to uneven placement of the wheels in relation to the body. Camber is responsible for the position of the wheel along the vertical axis, while toe is responsible for the placement of the wheels when entering a turn.
Why, if the indicators are incorrect, after a while it can begin to eat up rubber on all sides and on different wheels. For example, if wear is observed on the inside, it means that the angle has been tilted inward too much. This wheel position is called negative camber. Accordingly, if there is wear on the outside, then this is positive camber. This means the wheels are tilted in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, and on the other from the outside.
Positive and negative camber Why do the wheel alignment settings get lost? There are several reasons:
Lack of timely control, long-term operation of the car on bad roads.
Hitting a curb, a hole, or other potholes or uneven surfaces.
After repairing the suspension, replacing levers, silent blocks, steering ends, rods, etc.
Wear of suspension elements.
The reaction rods are bent, there is play in the bushings, etc.
Bent bridges, the hull itself.
2. Low or high tire pressure.
When using wheels with low pressure, accelerated wear begins on the part of the tire that breaks and bends. At low pressure:
The rim begins to press on the surface of the tire;
The tire structure sags at the edges.
Tire pressure That is, it is clear that with insufficient pressure, the side part often wears out, both on the inside and on the outside. If there is excess pressure, wear will be observed in the middle of the tire.
3. Uneven pressure.
A common reason for those motorists who do not monitor their car and tire pressure in general. Uneven tire pressure on one axle almost always leads to wear on one side or the other, depending on operating conditions. For example, on the right front wheel the pressure is 1.5 Ba, on the opposite one it is already 2.0 Ba. That is, there is a difference, which means uneven wear occurs. In such cases, the car often begins to “drive” in one direction, usually where there is less pressure. Rubber burns are also observed there.
4. Improper storage of tires in the 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 the rims on. Under weight pressure, the tires sag to one side. After a long period of lying in this position, the tires in most cases cannot be restored.
Proper Tire Storage The correct method of storing tires involves installing the wheels on edge, that is, just as the wheels are on the car, they need to be stored. Scrolling periodically so as not to get caught. Or better yet, hang it up. If the tires are on rims, then you can lay them flat.
5. Aging, manufacturing defects.
Nowadays, it is rare to use tires beyond their expiration date; rubber, as a rule, becomes unusable earlier due to excessive use. But still, don’t dismiss this reason. Check if any cracks or pores have appeared on the rubber. Violation of tightness, all this directly affects the operation of the tires. When the rubber is damaged or the seal is broken, moisture gets inside, which over time leads to the destruction of the metal shell of the tire, the so-called cord.
Cracks in rubber According to manufacturers' standards, the use of tires that are more than ten years old is prohibited.
Of course, this is not the entire list of reasons why rubber is eaten. There are a number of other problems, but they are less common. So:
Disturbance in the shape of the disc, for example, after a strong impact on a curb, hole, etc.
The disk is bent Damage and malfunction of the suspension, for example, a factory or acquired defect in the steering knuckle or levers.
Damage to the stand, 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, still, when checking by exclusion, it would not be superfluous to check this node as well.
After the impact, the tire slipped off the rim and changed the landing geometry. Hit the tire or remove the wheels yourself, spin it, if the tire has slipped, it will be noticeable.
Changing body geometry. After a strong impact (accident) or car overturning. 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 car is simply welded from several parts. That is, “constructor”, such are common in the Far East, where it is cheaper to import a cut from Japan, and then, after welding it, “push” it, like a normal car.
Conclusion
As a result, I would like to emphasize the importance of periodic diagnostics of the suspension, checking wheel alignment, and tire pressure. By the way, experts and manufacturers recommend checking the camber on average every 3,000-5,000 km, taking into account the road surface, perhaps more often.
When the cause is noticed, it will protect you from premature tire burns, and will also allow you, possibly, to preserve the health and life of the driver and passengers. Good luck on the roads.
avtoexperts.ru
. Eats rubber from the outside front
Why does it eat rubber from the inside of the front or from the outside on both wheels?
Tires are consumable and seasonal material. It is difficult to theoretically predict the degree of wear depending on mileage. Almost everything depends on the rubber composition of the mixture. By year, the average service life is about 5-6 years. This is the limit after which the product will develop cracks, and if there are cracks, 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 front: treatment
A common reason for short tire replacement intervals is uneven tread wear. Installing a new set of tires can rarely correct the situation, since a malfunction is most often the result of improper setup of the machine and untimely maintenance. Even a basic procedure for monitoring tire pressure can prevent untimely failure of a tire industry product.
Critical adjustments
The front suspension is a complex mechanism, but adjustable. Therefore, if you are eating tires from the inside of the front, you must first analyze its current settings. And premature wear of the outer shoulder is also a reason to inspect the relative position of the front suspension arms.
This chassis design is designed not only to optimize tire wear resistance. First of all, other goals are pursued - increasing the stability of the car and ensuring easy handling. In the adjustment process, it is customary to distinguish between three types of parameters:
- Camber is 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.
- Toe-in is the position of the tires relative to the horizontal plane. Required to compensate for the elastic movements of rubber parts when transmitting traction to the wheels.
- Caster is 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 tread wear in most cases indicates that the above settings are incorrect. In particular, rapid wear of the tire's outer shoulders causes increased positive camber. In this case, the top of the tire is angled away from the center of the vehicle. 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 front: possible reasons
A non-standard situation often occurs in the form of different wear on tires mounted on the same axle. Let’s say the right wheel “ate” from the outer end, the left one from the inner end. The exact reason is an incorrectly performed operation to adjust the geometry of the relative position of the suspension elements.
The real reason
The list of actions in the case of rubber eating on the outer side in front is partly relevant when identifying rapid wear of the inner shoulders. When identifying increased abrasion of the treadmill from the inner edge, the nature of the malfunction should be classified into one of the following groups:
- The side checkers are erased evenly - the camber angle is adjusted incorrectly.
- Saw-tooth herringbone wear – toe-in is not up to standard.
Options for combining the fixed types of worn tread geometry cannot be ruled out. Under such circumstances, experts talk about incorrect settings for both camber and toe. 
For your information. Not all vehicles provide the ability to adjust all three wheel angles. If there are defects and there are no necessary adjustments, the cause should be sought in non-original and worn suspension components (silent blocks and other bushings). Factory defects in tires or incorrect adjustment of landing gear levers should not be discounted.
There are often cases when the rear “eats” rubber on one of the sides. Worn rear suspension silent blocks are a likely cause of the malfunction. However, tuned struts and various types of spacers can also cause deviations in the geometry of the tires used.
Current issues
Why does the wheel alignment go wrong?
A bad road has a negative impact not only on the life of chassis components. It also leaves a negative imprint on their mutual position. Timely control of adjustments is necessary in the following cases:
- After a strong impact on the curb, holes, potholes and other uneven road surfaces.
- Upon completion of replacement of suspension elements.
Attention! Wear on the consumable components of the suspension structure also disrupts the installation angles.
The components are original and the wheel alignment is correct: the tire still wears unevenly
It is likely that the hub bearing has become unusable. If there is such a malfunction, it is difficult not to notice the play by rocking the wheel in different directions. While it is possible to deal with this ailment, it is difficult to change the incorrect geometry of the body. And due to the bent load-bearing part, there may well be rubber on the inside of the back or front of the car.
Premature wear does not meet the above criteria
Cases of asymmetrical “eating” of rubber products are discussed above. The following cases of tread wear should be classified as symmetrical:
- On both sides: low tire pressure.
- Center: increased tire pressure.
There are often situations when on the front/rear axle one of the tires works faster than the other. The only argument in favor of this state of affairs is the different pressures in tires located on the same axle. As a result, the car pulls to the side and there is increased friction in the wheel with less air.
Verdict
Possible malfunctions causing uneven tread wear are:
- Eats rubber from the inner edge. If there is a “herringbone” pattern on the treadmill, the problem is incorrect alignment; Even wear is due to a false camber angle.
- It eats rubber from the outer end - positive camber is to blame.
The wheel alignment settings are within tolerance - see the following:
- There is wear on the rubber suspension components.
- The correct shape of the rack flanges.
- Compliance of the design of support bearings and various spacers with the requirements of the manufacturer.
Asymmetrical geometry of the working part of the tire can also be caused by a damaged body. Another probable cause is noticeable play in the hub bearing.
Why does a car eat rubber on the outer and inner sides of the front wheels? Read and eliminate"
Why does a car eat rubber on the outer and inner sides of the front wheels? Read and eliminate
Many car enthusiasts are interested in why the car eats rubber on the outer and inner sides of the front wheels. This problem is quite common. Moreover, the difficulty lies in the inability of the craftsmen to accurately determine the cause of the breakdown, but it always lies on the surface. Therefore, it is advisable for the owner to know the main types of breakdowns that lead to increased wear of parts. Some of the problems can be fixed right in the garage. This will allow you to avoid unnecessary trips to the service center, although no one has canceled the diagnosis. By knowing the reasons, you can avoid mistakes made by careless or inept mechanics.
Why does a car eat rubber on the outer and inner sides of the front wheels? Everyone knows that car tires wear out over time, and this primarily concerns the front wheels. There are several factors that influence this process. Actually, not too much tire wear is normal for a car. The tires on the inside of the wheel are worn off first. This is due to the presence of castor. In theory, under normal conditions, wear on a wheel becomes noticeable only after 2-3 seasons. With faster wear, it is necessary to look for the cause of the problem.
Preliminary
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The hydrometeorological center warned of a decrease in grain harvest / Surfingbird
The grain harvest in Russia this year will be 15-20% lower than last year, says Dmitry Kiktev, head of the Russian Hydrometeorological Center. 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. Interfax reports this with reference to the words of the acting director of the Hydrometeorological Center of Russia Dmitry Kiktev.
“The forecast of the Hydrometeorological Center is that this year’s harvest for grains and grain-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, Volga and Southern Federal Districts. According to him, the heavy rainfall that occurred in some areas over the past two weeks “was unevenly distributed, very variegated.”
However, now 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, in 2017, 135.4 million tons of grain were harvested - 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 around 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 this volume of grain this year. At the same time, we must clearly understand that the forecast for the future can be changed depending on how weather conditions develop,” Patrushev said in early July (quoted by TASS).
The minister noted that the situation with the grain forecast changes regularly. “There will be an opportunity to collect more, of course, we will make every effort and do it,” Patrushev added.
surfingbird.com
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