What are the different types of car tires? There are several types of car tires

Classification by structure.

It can be divided into radial tires and bias tires.

Classified by pattern du.

It can be divided into strip pattern zhi, transverse pattern tires, mixed pattern tires, and off-road pattern tires[1].

Classified by car type.

Tires are classified according to the type of vehicle, and can be divided into about 8 types. Namely: PC - car tires; LT - light truck tires; TB - truck and bus tires; ag - agricultural vehicle tires; OTR - engineering wheel [2] tire; ID - Industrial vehicle tires; AC – aircraft tires; MC – Motorcycle tires.

There are probably these models of tires: 195, 65R15, 205, 55R16, 205, 60R16, 215, 55R17.

If the specification of a tire is 195 55 R16 85V, then 195 represents the width of the tire and 195 represents the flat ratio of the tire, that is, the cross-sectional height is 55% of the width.

R means that the tire is a radial tire, and the inner layer of this tire is made of radiation, and 15 is the rim diameter is 15 inches. 85 means that the load index is 85, which means that the maximum load is 515 kg, and the four tires are 515 4 = 2060 kg. v refers to a speed level of 240 km/h .

If the tire suffix character is XL, that is, the meaning of the load enhancement tire.

1. According to the structure, it can be divided into two types: radial tires and bias tires. 2. According to the pattern, it can be divided into four types: strip pattern, transverse pattern tires, mixed pattern tires and off-road pattern tires. 3. According to the different types of cars, it can be divided into:

PC - car tires, LT - light truck tires, TB - truck and bus tires, AG - agricultural vehicle tires, OTR - engineering vehicle tires, ID - industrial vehicle tires, AC - aircraft.

1. Automobile tires can be divided into truck tires and car tires according to their uses; Truck tires are divided into heavy-duty, medium-duty and light-duty truck tires.

2. Automobile tires can be divided into pneumatic tires and solid tires according to different carcass structures. The vast majority of modern cars use pneumatic tires.

3. Pneumatic tires are divided into two types: tubeless tires and tubeless tires according to different compositions.

4. Pneumatic tires can be divided into ordinary bias tires, bundled bias tires and radial tires according to the different directions of the cord arrangement in the carcass.

There are two simple types: inner tube and tubeless.

Classified by car type.

Tires are classified according to vehicle types, which can be roughly divided into 8 types: PC - car tires; RV-SUV tires LT - light truck tires; TB - tires for trucks and buses; ag - agricultural vehicle tires; OTR - engineering vehicle tires; ID - Industrial vehicle tires; AC – aircraft tires; MC – Motorcycle tires.

Categorized by season of use.

It can be divided into commonly used tires and winter tires, such as the northeast of China from November to start to change to winter tires.

Classified by tire use.

Tires are classified by application, including truck tires, passenger car tires and construction tires.

Categorized by tire size.

Tires are classified according to size, generally tires with a cross-sectional width of more than 17 inches, which are called giant tires; Tires with a cross-sectional width of less than 17 inches and more than 10 inches are called large tires; Tires with a cross-sectional width of less than 10 inches are called small and medium-sized tires.

Classified by tire structure.

Tires are classified according to the structure, and are widely used in two categories: bias tires and radial tires, and radial tires can also be divided into all-steel and semi-steel tires.

See Kinds of Meridians.

The wheels of sedans generally use radial tires. The specifications of radial tires include width, aspect ratio, inner diameter and speed limit symbol. Take Toyota sedan as an example, its tire specification is 195 65R15, which means that the width between the two sides of the tire is 195 mm, and 65 represents the aspect ratio"r"Stands for the word radial, which means that it is a radial tire.

15 is the inside diameter of the tire, measured in inches. Some tires are also marked with speed limit symbols, which are represented by letters P, R, S, T, H, V, Z and other letters.

In particular, the aspect ratio is the height of the tire wall as a percentage of the tire width, and the height of the tire width of modern cars is between 50 and 70, and the smaller the value, the flatter the tire shape. As the speed increases, the diameter of the tires decreases in order to lower the center of gravity and axle of the car. In order to ensure sufficient load carrying capacity and improve driving stability and grip, the width of the tires and rims had to be continuously increased.

Therefore, the cross-sectional shape of the tire has developed from the original approximately circular to a flattened oval.

The characteristic of this tire is that the direction of the cord cord arrangement is consistent with the radial section of the tire (that is, the crown angle of the tire is zero degrees), due to the arrangement of the cord, the strength of the emperor wire can be fully utilized, and the number of cord layers of the radial tire can generally be reduced by about 40-50% compared with the ordinary slash tire. The cords are connected only by rubber in the circumferential direction.

Compared with ordinary slash tires, radial tires have the advantages of large elasticity and good wear resistance, which can increase the service life of tires by 30-50%, small rolling resistance, reduce automobile fuel consumption by about 8%, good adhesion performance, good cushioning performance, large bearing capacity, and not easy to puncture. The disadvantages are: the sidewall is easy to crack, due to the large side deformation, resulting in poor lateral stability of the car, and the manufacturing technical requirements and costs are high.

Tubeless cars in recent years have achieved radial tires tubeless, commonly known as"Atomic tires"。These tires are less prone to heat build-up at high speeds, and when the tires are punctured by nails or sharp objects, they leak slowly and can continue to drive for some distance. In addition, atomic tires also have the advantages of simplifying the production process, reducing weight, and saving raw materials.

Therefore, the assembly of atomic tires has gradually become a trend in the field of cars. Tubeless tires differ from regular tires in that there is no inner tube, and air is pressed directly into the outer tire, so the tire and rim need to be well sealed.

Tubeless tires are similar to tubeless tires in appearance and structure, the difference is that a layer of rubber sealing layer with a thickness of about 2-3mm is attached to the inner wall of tubeless tires, which is adhered to by vulcanization, when the tire is perforated, because it is in a compressed state and tightly wrapped with the puncture, it can not leak air for a long time, even if the puncture is pulled out, it can temporarily maintain the air pressure in the tire.

The bead of tubeless tires has several concentric annular grooves, which reliably compress the bead against the rimrim under the action of air pressure in the tire to ensure a seal. Tubeless tires are air-tight, with a sloping bottom and a flat paint finish. The valve is fixed to the rim with a straight press.

According to the inflation pressure, it is divided into: high-pressure tires. The inflation pressure is generally more than kilogram force cm2, the stiffness is large, the buffering performance is poor, and it has been rarely used.

Low-pressure tires. The inflation pressure is generally 2 kgf cm2. With the improvement of cord strength and tire carrying capacity, some tires have inflation pressures of more than kgf cm2, but their cushioning performance is close to that of low-pressure tires, and they are still low-pressure tires.

Ultra-low pressure tires. The inflation pressure is generally less than 2 kgf cm2.

According to the tread pattern, it is divided into: ordinary tread tires. There are many length, horizontal, and two-way designs.

Ordinary transverse tread tires are suitable for use on poor and gravel roads; Longitudinal tread tires are suitable for use on good road surfaces; Tires with both longitudinal and transverse patterns are suitable for use on both normal and poor road surfaces. Off-road tread tires. The tread has a large pattern and is suitable for use in mines, construction sites, deserts, loose ground and slush roads.

Mixed tread tires. It is suitable for good pavement, gravel pavement and loose soil pavement.

According to the carcass structure, it is divided into: ordinary structure tires. The cord of the cord layer is laminated and glued in the form of crossing, and the tire cavity wax body is firm and has good lateral rigidity, but the cushioning performance is poor.

Radial construction tires. The cord of the carcass is arranged in the form of a meridian, which is orthogonal to the circumference of the outer tire, and the strength is fully exerted. Radial structure tires have less rolling resistance than ordinary structure tires, good cushioning performance and long mileage.

According to the application, it is divided into passenger tires and truck tires. Passenger tires: for low-pressure tires with an inflation pressure of less than 4 kgf cm2 in Wu Zheng, the cord layer is generally 4 6 layers, and the bead diameter is generally less than 16 inches.

Passenger tires are used in cars and light trucks. Passenger tires are developing in the direction of ultra-low pressure. Truck tires:

For low-pressure tires with an inflation pressure of 4 kgf cm2 or more, the ply layer is generally 10 16 layers, and the bead diameter is generally 16 32 inches. Truck tires are used in medium and heavy trucks, buses and trolleybuses.

Specifications and sidewall markings The nominal outer diameter (d), cross-sectional width (b) and inner diameter of the bead (d) of the tire are the main specifications of the tire, which are generally marked on the sidewall in the imperial system. High-pressure tires are denoted by d b; Low-pressure tires are denoted by B-D. The sidewall also has a code name indicating the type of carcass cord.

In China, m is used to denote cotton cord; Use r to denote rayon cord; Use n to represent nylon cord; G is used to represent the ordinary structure of the steel cord of local filial piety; z is used to denote the meridian structure. In addition, the sidewall is also marked with tire pressure, maximum load, number of ply layers, brand, date of manufacture, etc. The load capacity of the tire is expressed as "layer", and the layer of the cotton cord tire is the actual number of layers of the carcass cord.

The higher the level, the greater the load capacity. Cords such as rayon, nylon, polyester, steel wire or polyarylamide are all stronger than cotton cords, so the actual number of cord layers in tires made from these cords is not the same as the layer used to mark the load capacity. For example:

6 layers of nylon cord tires are equivalent to 10 layers.

1. According to the classification of car types, it can be divided into 8 types:

1. PC car tires;

2. LT light truck tires;

3. TB truck and bus tires;

4. Danliang AG agricultural vehicle tires;

5. OTR engineering vehicle tires;

6. ID industrial vehicle tires;

7. AC aircraft tires;

8. MC motorcycle tires.

Second, according to the inflation pressure:

1. High-pressure tires: the inflation pressure is generally more than kilogram force per centimeter, the stiffness is large, the buffering performance is poor, and it is rarely used;

2. Low-pressure tires: the inflation pressure is generally 2 to kilogram force per centimeter;

3. Ultra-low pressure tires: the inflation pressure is generally less than 2 kgf per centimeter.

3. According to the structure, it is divided into radial tires and bias tires.

Fourth, according to the pattern, it can be divided into strip pattern, transverse pattern tires, mixed pattern tires, and off-road pattern tires. Late years.