In addition to the size of the tire, there are many useful parameters, don't understand carefully eat big losses
As the only part in contact with the road, truck tires carry tens of tons of goods and travel thousands of kilometers over a long distance. The importance of tires is self-evident.
When many card friends choose tires, in addition to the brand of the tire, they often only pay attention to whether the width, diameter and aspect ratio parameters match their truck. There is still a lot of useful information on the tires. In this article, we will teach you to identify them one by one.
First of all, introduce the basic parameters of the tire, namely tire width (tire cross section), diameter, aspect ratio (sidewall), load rating and speed rating.
The tire width of passenger cars is marked in millimeters instead of passenger cars. AndIn truck tires, both millimeter units (metric) and foot units (imperial) are indicated.In addition, the other parameters are basically the same.
This articleMicro-card tire as an examplePresentation.
1,175/75R16LTFor the parameters of the tire. among them,175RepresentationCross-sectional width of tyre, That is, the contact width between the tire and the ground is175mm,.
75Then it represents the aspect ratio of the tire. The aspect ratio refers to the ratio of the height from the rim to the tread to the tread width, expressed as a percentage.
Rfor radial tires,16It means that the inner diameter of the tire is16Inch.
LTIt means light truck tires.
2,8P.R.97/94Qis an additional parameter for the tire, where8P.R.Representation8The level can be simply understood as the strength of the tire. The larger the number, the higher the strength. It should be noted that the level is not completely consistent with the actual ply number.
97Indicates single tire load730kg,94Indicates twin tire load670kg.
Qis the speed level, and the corresponding speed is160km/h. Specific controls are shown above.
M＋Sof whichMis EnglishMud-TerrainThe abbreviation“Mud”the meaning,Sis EnglishSnowThe abbreviation“Snow”The meaning.
This means that the tire is suitable for use on icy, snowy and muddy roads. Generally, it has a very thick lateral or block pattern, with better grip, but greater driving resistance and noise. It is generally used as an off-road tire.
3,LT, still represents that the tire is a light truck tire.
4,3CCompulsory certification. Compulsory certification in our country indicates that the quality is proper.
5,DOT JUET 2CL, indicating that the tire meetsDOTstandard,DOTIt means certification by the U.S. Department of Transportation, usually followed by a string of alphanumeric letters, which represent the origin information and factory code of the tire.
6The production date of the tire. a total4number of digits,Front2Bit indicates the number of weeks of production of the tire, followed2Bit indicates yearThe tire in the picture is2019Year No.24weekly production.
In view of the tire life is generally5Around the year, when you buy tires, you must see the production date clearly to avoid buying stock tires.
7,E4This is the EU certification regulations.ECEIdentification. This means that the tyre complies with EU standards.
8The product model of the tire, representing a series of products of the tire manufacturer, such as Michelin.-Tough its line, Michelin-Intrepid its line.
9,TUBELESS STEEL BELTED, in whichTUBELESSIt means tubeless, commonly known as atomic tire or tubeless tire. This kind of tire has no inner tube and cushion belt. It uses the inner wall of the tire and the inner layer of the bead to ensure good air tightness between the tire and the rim. The outer tire also acts as an inner tube.STEEL BELTEDIndicates a semi-steel radial tire.
10,Hi YangI believe you should know that this is the Chaoyang tire owned by Zhongce Rubber.
11, Indicates the maximum load factor, tire pressure parameters, and the composition structure and number of layers of the tread and sidewall of the tire.
MAX LOAD SINGLE 730KGRefers to the maximum single tire load730kg.
MAX LOAD DUAL 670KGRefers to the maximum twin bearing capacity670kg.
TREAD PLIES, Refers to the structure of the tread.2 POLYESTER 2 STEEL 1 NYLONIndicates that the tread has2layer of polyester carcass layer,2Layer steel wire and1Layer composed of nylon. In addition, common tire components arePOLYAMIDEPolyamide, etc.
12Finally, let's talk about the foot unit tire (imperial).
As shown in the figure above, the tire model is7.00R16LT, here's7.00is in English units, indicating that the cross-sectional width of the tire is7inches,Rfor radial tires,16represents the rim diameter,LTIndicates light truck tires.
Through the popular science of this article, I wonder if you can have a more intuitive and clear understanding of the tire parameters? Finally, I will give you a question. When is the production date of the tire on this picture? Please answer in the comment area below.
Keywords: recycled rubber automobile cushion belt