It is important to choose the right semi-trailer tires correctly. Tires are one of the important components of a car's running mechanism and are directly related to the vehicle's performance and operating economy. Failure to correctly select and use tires will not only degrade the car's performance, but also affect the car's driving performance, and may even cause unnecessary casualties and property losses. Especially for the cost of vehicle use, tires are a consumption other than fuel consumption. If tires cannot be selected, used and maintained correctly, not only will it not create due economic benefits for users, but it will also cause heavy losses. The financial burden makes users miserable.

1. Basic principles of tire selection

The basic principles of tire selection: First, calculate the tire's load capacity and speed rating based on the axle load to determine the tire specifications, which involves the vehicle's indicators and driving performance. Secondly, according to the structural characteristics of the vehicle (such as tractors, dump trucks, mixer trucks, etc.), driving road conditions, climate, etc., determine the tire structure (radial tires or ordinary tires) and tire patterns to meet the vehicle's passability and smooth driving. performance, steering characteristics, tire interchangeability and maintenance convenience, etc., and estimate the economy. , and then consider other auxiliary requirements for tires, such as the stability of tire supply and vehicle management issues.

1.1 Rated load

When choosing tires, you must first ensure that the tires cannot be loaded. If the tires are loaded, not only will the tires experience abnormal wear and tear, causing rapid shortening, but sometimes the tire load will also lead to insufficient tire stiffness and deterioration of adhesion, seriously affecting the vehicle's driving stability, and even causing sudden accidents while the vehicle is driving. A tire burst, resulting in a car crash and death. Tires of the same specification may have different load capacities. Please pay attention to the following matters when selecting them:

a. Tires of the same specification have different structural layers, so their load capacities are also different, so choose carefully.

B. The allowable load of tires of the same specification is different when used as a single tire and when installed with twin tires. When twin tires are installed together, due to the camber of the road surface and the downward bending deformation of the axle after loading, the loads on the inner and outer tires are different. At this time, the total load-bearing capacity of the two tires is about 1.72 times that of a single tire, not 2 times. relation.

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