Irregular and radial tyre steel wire belt has good flexibility to adapt to the impact of the road, and durable, it also means that the fabric structure is much smaller than the oblique line friction in the car, which has long service life and better tread fuel economy. At the same time, the radial tire itself makes it possible for the tyre to have no inner tube. Tubeless tire has a recognized advantages, namely when the tire is punctured, unlike a tubeless bias tyre burst (as this is very dangerous), but to make the tire can maintain pressure within a period of time, improve the safety of driving a car. In addition, the radial tire has better grip ability than the inclined line tire.
Cord tire alone: some signs, such as "nylon" (NYLON), the general standard in the world level; some tire manufacturers marked in the specification, expressed by the first letter of Chinese phonetic alphabet, such as 9 20N, 7.50 20G, N said, G said, M nylon wire, Cotton Table R said rayon.Load and air pressure: generally indicate the maximum load and the corresponding air pressure, the load is "kg", the tire pressure is the tire pressure, and the unit is "kPa"".Rim specification: Specifications for rims used to match tyres. For practical use, such as "standard rims", 5.00F".Balance mark: made of colored rubber, marked shape, printed on the tire side, which means that the tire here is the lightest, the assembly should be facing the valve to ensure the balance of the entire tire.
The tire is an important part of the automobile, the automobile tire marks are more than 10 species, correct identification of these markers selection, use and maintenance of tires is very important, is of great significance for the protection of traffic safety and prolong the service life of the tyre.Tire specifications: specifications are geometric data of tire parameters and physical properties. The tire specifications are usually represented by a set of figures. The first figure represents the width of the section of the tyre, and the latter figure represents the diameter of the rims. They are measured in inches. The middle letters or symbols have special meanings: "X" means high pressure tyres; "R" and "Z" represent radial tyres; "1" means low pressure tyres.
From the design perspective, bias tyre has many limitations, such as cord cross strong friction, easy to make the matrix heat, so the accelerated wear tread, and the curtain line layout is not good enough to provide excellent handling and comfort;
The common classification methods of tires are the oblique intersection tire and radial tire according to the structure. The fundamental difference between radial and oblique tread is the carcass. Cross ply tire carcass is cross ply; and radial tire carcass is cross polymer multilayer materials, steel cord is its top layer by number of steel wires, can reduce the probability of tire punctured by a foreign body.