Have you remembered all the markings on the solid tires?
1. Tire specifications: Specifications are the symbol design data of tire geometric model parameters and physical system performance. There are three ways to express tire specifications: A. Metric (m); B. Metric and British mixed; C. Inch tire specifications are usually represented by a set of numbers, the first number represents the width of the tire part, and the larger number represents the diameter of the rim , All in inches. The letters or symbols in the middle have special educational meanings:
2. Tire structure: "R" stands for radial tires, and "D" stands for skewed tires.
Others: "XL" means that the tires can be strengthened locally with different textures, "TG" means system engineering tractor and grader tires (for off-road use), and "NHS" means that Chinese tires are used for off-road management.
3. Gradation: Gradation refers to the nominal number of layers of the tire rubber inner layer, which is not completely consistent with the actual number of layers. It is an important indicator of tire strength. The level is marked with Chinese documents, such as level 12; and the level is marked in English, such as "14P.R", which means level 14.
4. Cord material: Some tires are marked separately, such as "nylon", which is generally marked after the level; tire manufacturers in the world mark after the specifications, using the initials of the Chinese pinyin, such as 9.00-20N, 7.50-20G, etc. n stands for nylon, G stands for steel wire, M stands for cotton thread, and R stands for rayon.
5. Load and air pressure: Generally, a larger impact load and corresponding working air pressure can be indicated. The load is in kilograms, and the air pressure is the tire pressure in kilopascals.
6. It is convenient for students to use, such as "standard and rim 5.00F".
7. Balance mark: a mark shape made of colored rubber, printed on the side of the tire, indicating that the tire is very light here, and it should be on the nozzle during assembly to ensure the balance of the entire tire.
8. Rolling development direction: The pattern on the tire is particularly important for the drainage and anti-skid during driving. Therefore, the off-road vehicle tire companies with asymmetric patterns often use arrows to mark the direction of product assembly rolling to ensure the adhesion and anti-skid performance of the system design. . If you make a mistake, it will be counterproductive.
9. Wear limit mark: Use rubber strips and blocks on one side of the tire to mark the wear limit of the tire. Once the wear of the Chinese tire can reach the design position of our important mark, it should be replaced in time, otherwise the tire will burst midway due to insufficient strength development.
10 Production batch number: It is marked by a set of numbers and letters, indicating the date and quantity of the tire. For example, "98n08b5820" refers to the No. 5820 tire produced in Group B in August 1998. The production batch number is used to identify the age and storage time of the tire.
11. Trademarks: Trademarks are the signs of tire companies’ production equipment manufacturers, including Chinese trademark text and patterns. Generally speaking, they have outstanding comparative advantages and are eye-catching and easy to identify. Most of them are marked in conjunction with the name of the social production technology enterprise.