Is there anything special about the different patterns of car tires?

There are usually a lot of numbers and letters on the tires, and these numbers and letters represent different meanings. Most tires have the DOT logo, the tire DOT is the meaning of the United States Department of Transportation certification, usually followed by a string of numeric letters, which represent the origin information of the tire and the factory**, the last four digits are the production date of the tire. The first two represent the number of weeks of production, and the last two represent the year of production.

In addition, we can also see that there are many numbers and letters on the tires, some are tire brands, M+S means that mud and snow are applicable, some tires will be marked as M S, M&S or MS, and some are marked All, that is, the same tires in all seasons. There are also a series of numbers and letters similar to 195 60 R15 88T, which identify the specifications of the tire

195: refers to the tread width of the tire, which means that the tread width of this tire is 195mm.

60: refers to the flat ratio of the tire, not that the tire thickness is 60mm, but that the flat ratio of the tire is 60% (flat ratio = tire height and tire width 100%).

r: refers to the type of tire, which means that the tire is a radial tire.

15: Refers to the wheel size, this tire is suitable for 15-inch wheels.

88: refers to the load index of the tire, that is, the maximum load of the tire, the maximum load of this tire is 560kg.

t: refers to the speed class of the tire, that is, the maximum speed of the tire, the maximum speed of this tire is 190km h.

In addition to this, there are also numbers on the sidewall of the tire to represent the performance of the tire

The wear resistance index Treadwear reflects the wear resistance of the tire, the higher the value means that the tire is more wear-resistant, and it also means that the hardness of the tire is greater, the worse the comfort, and vice versa. Generally, the wear resistance index is moderate at 280-320. The wear index of the tire is 320, which indicates that the comfort of this tire is better.

traction represents the traction index, and the following letters represent the strength of the grip, from high to low, AA, A, B, C. AA indicates that the tire has very strong traction.

temperature represents the heat generation index of the tire, and the following letters indicate the heat generation level of the tire, and the heat generation level of car tires from high to low are A, B, and C. The heat generation level of this tire is A, which means that the high temperature resistance is excellent.

I wish you a pleasant ride, thank you.

The four tires have different patterns that will affect:

1. The kinetic energy transmission of the car is blocked, and the "kinetic energy work efficiency" under normal working conditions cannot be exerted, which aggravates the wear and tear of some parts or mechanisms or abnormal working conditions;

2. Acceleration is blocked, the pattern is inconsistent, the speed is different, the friction coefficient is different, and the rolling direction resistance is different.

3. Due to the lack of patterns, the ground friction resistance indirectly "increases", and the fuel consumption increases;

4. The pattern of the four tires is inconsistent, which can lead to the deviation of the vehicle;

5. The effective braking force or braking distance is affected, and it is very likely to bias (bias) behavior during braking, resulting in adverse consequences or even safety accidents;

6. The calorific value is inconsistent, and individual tires wear out rapidly;

7. The axial or coaxial position of the hub (bearing) aggravates the wear.

Note: When the owner replaces the tire, it should be replaced or replaced in strict accordance with the manufacturer's requirements, and the original tire brand specifications should be used as the standard when replacement. Combined with relevant road traffic safety regulations and automobile safety regulations, all modifications and upgrades of vehicle original tires are prohibited.

Ensure the safety of one's own people and vehicles and the public property of others and public property, as well as the protection of personal rights and interests (three guarantees of after-sales).

If it is convenient, it is better to go to the nearest 4S store for inspection, safety first!

1.Consult the relevant after-sales service personnel to understand the situation.

2.You can go to the big repair shop to check the specific fault and find a professional maintenance personnel to check.

3.It is recommended to operate and maintain according to the maintenance manual. Regularly maintain the owner, and change the engine oil once every 5,000 kilometers. Some vehicles will have a hint.

4.Go to the corresponding 4S shop, or a designated large-scale professional repair shop for service, so that the quality is the best, and the after-sales service will be in place.

The road on which the car is driving is smooth and smooth, and if the tires of the car are also smooth, it will be difficult for the driver to stop the car when the driver applies the brakes. In order to prevent the tires from slipping, people give the tires an uneven pattern. With these patterns, the friction between the tire and the ground increases.

Differences: There are common tire patterns, including longitudinal patterns and transverse patterns, including transverse patterns for bias tires and longitudinal patterns for radial tires.

The tread of the longitudinal pattern is longitudinally continuous and transversely disconnected. The longitudinal stiffness of the tread is large, the transverse stiffness is small, and the anti-slip ability shows transverse strength and longitudinal weakness. The tread of the transverse pattern is transversely continuous and disconnected longitudinally. The transverse stiffness of the tread is large, and the longitudinal stiffness is small.

Function: Increase the friction between the tread and the road surface to prevent the wheel from slipping. The tire pattern improves the ground elasticity of the tread, and under the action of the tangential force between the tread and the road surface, the tread block can produce a large tangential elastic deformation.

Car tires with different patterns cannot be used on the same car. When replacing tires, you should remember that you can't mix tires with different types, different models, and different carcass structures on the same car, and tires on the same axle should be prevented from mixing, if you want to replace one side of the tire, the other side should also be replaced at the same time.

The main function of the tire pattern is the grip, and the grip of different patterns will be different, so if there is a tire pattern that is different, it will lead to an imbalance in the grip of the four tires, and there will be potential safety hazards in the long run. At the same time, due to the different patterns, the water conductivity of the tires will be different, and there are also potential safety hazards in rainy days.

Different patterns also determine the comfort of the tire, if the pattern is different, there will always be some trouble, if there is no way to use the same tread tire.

The different effects of automobile tire patterns are: 1. It affects the service life of tires and will lead to an increase in automobile fuel consumption; 2. The grip of the four tires is unbalanced, which can easily lead to skidding and deviation of the car, and there will be a danger of sideslipping when driving in rainy days, which has certain potential safety hazards; 3. It affects the comfort of the car. Tires are often used under complex and harsh conditions, and bear various deformations, loads, forces, and high and low temperatures when driving, so tires must have relatively high bearing performance, traction performance, cushioning performance, and also have relatively high wear resistance and flexural resistance, as well as relatively low rolling resistance and heat generation.

The effects of different car tire patterns are: 1. The motor vehicle is unbalanced and easy to deviate when driving; 2. The grip is not the same, which affects normal driving. It is recommended to install tires of the same brand and pattern on the same axle to reduce the impact of different tire patterns.

The influence of different tire patterns of automobiles: there will be different grip ability, and the car will deviate while driving. It is recommended to install tires of the same brand and pattern on the same axle.

The pattern on the tires is not designed randomly. In fact, each tire block has a division of labor, and they all perform their own duties. Different tire patterns affect the performance of tires, and the middle tire block and the ribs on both sides form the main area where the tire seat rubs the ground, and its function is to grip the ground tightly.

The main function of the tire pattern is to increase the friction between the tread and the road surface to prevent the wheel from slipping. Different patterns of tires can be related to the performance of tires, such as when the vehicle is driving, braking, and turning, it is necessary to maintain different friction with the road surface.

Replacement of tires: 1. When the pattern is reduced and the degree of wear is deepened, it means that the braking distance of the vehicle will also be affected, so it should be replaced in advance for its own safety, the general thickness is about 8 mm, and it should be replaced when it is worn to millimeters.

2. Observe the tread and the lines on the sidewall, if there are cracks, it means that the tire has been seriously aged, and the mileage will not be too long, so in this case, you should consider replacing it as soon as possible.

Photo and text Taken by Danqi: Pacific Automobile Network Q&A called beast).