Tires are often used in complex and harsh conditions. They are subjected to various deformations, loads, forces and high and low temperatures during driving, so they must have high bearing performance, traction performance and cushioning performance. At the same time, it also requires high wear resistance and bending flexibility, as well as low rolling resistance and heat generation.
1, Bridgestone: Better tire comfort.
2, Michelin: good handling ability in rainy days.
3. Goodyear: Tires are more wearable.
4, horse brand: reduce tire noise.
5. Pirelli: The best performance in sports.
6. Chaoyang and Hantai: The price advantage is obvious and the cost performance is high.
According to China's regulations, in addition to the tire size, the manufacturer's trademark, grade, maximum load, corresponding air pressure and production number should also be marked on both sides of the tire. In order to easily identify the carcass cord, the sidewall is also marked with Chinese phonetic alphabet. For example, m (or no words) stands for cotton tire, r stands for rayon cord tire, n stands for nylon tire, z stands for radial tire, g stands for steel wire tire, ZG stands for steel wire meridian and so on.
Nowadays, automobile tires are further flattened, and the flattening rate [(H/B)x 100] tends to be above 50-70, 50, 55, 60, 65 and 70 from 60-80, and a few automobiles have already used specifications 40 and 45.
The latest tire series representation method in the United States adopts the "letter-number" symbol based on "flattening rate", for example, a tire is marked as F78- 14, where f represents the bearing capacity of the tire; The first number indicates that the "flattening rate" is H/Bx 100, and the number 78 indicates that the tire height is 78% of the width. The lower the value, the flatter the tire section. The second number 14 indicates that the rim diameter is 14 inch. The unit of bearing capacity is kg, and the letters indicating the bearing capacity and the load it bears are as follows: A-4 10, B-445, C-480, D-5 10, E-540, F-580, G-620, H-685, I-.