HOW TO CHOOSE TYRE
Tyre selection and use According to the vehicle’s load, speed, road conditions, climate and environment to consider, you will choose the right car tyres? Tyre is one of the most important components of the car driving mechanism, which is directly related to the safety and operating economy of the vehicle. If you can not correctly select and use tyres, not only will reduce the performance of the car but also affect the safety of the car, and even cause unnecessary casualties and property damage. Here to share the details of the purchase method:
The basic principles of choice:
1.- Calculate the tyre’s load capacity and speed level based on the axle load to determine the tyre specifications, which involves the vehicle’s performance and driving safety.
2.- According to the structural characteristics of the vehicle (such as tractor, dump truck, mixer, etc.), driving road conditions, climate and other structures to determine the tyre (radial tyre or ordinary tyres) and tyre patterns to meet the vehicle through, ride comfort , Steering characteristics and tyre interchangeability and ease of maintenance and other requirements, and estimate the economy.
3.- Consider other ancillary requirements of the tyre, such as the stability of the tyre supply and vehicle management issues.
Choose the basic principles of the detailed method
u Rated load
When selecting a tyre, you must first ensure that the tyre can not be overloaded. If the tyre overload, not only the tyre will produce abnormal wear and cause a sharp shortening of life, and sometimes because of tyre overload caused by tyre stiffness and adhesion performance deterioration, seriously affecting the stability of vehicle traffic, and even vehicles in the process of driving Sudden burst, causing the car to death. For the same specifications of the tyre may have different load capacity, the choice should pay attention to the following matters:
1.- The same specifications of the tyres have different layers of structure, so the load capacity is different, to carefully choose.
2.- The same specifications of the tyre in the use of single-tyres and twins and loading the allowable load is not the same. Twins and loaded, due to the pavement and the axle after loading down bending deformation, the load inside and outside the tyre is not the same, then the total load capacity of the two tyres is a single child about 72 times the state, not 2 times relationship.
3.- Tyre secondary selection principle is the tyre load capacity is not high on the low, before and after the axle to be balanced.
u Determination of speed level
The same specifications of the tyre not only have different load capacity, there will be different speed levels, and sometimes the vehicle’s tyre load is not overloaded, but may speed overload, can cause excessive tyre heat, excessive wear and puncture and other issues, tyre speed Excessive may lead to the following:
1.- Tyre overheating can cause excessive wear and even puncture.
2.- If the tyre speed exceeds a certain degree during the course of the vehicle, the tyre itself will resonate and generate a “standing wave” when the vibration frequency caused by the external force is equal to the natural vibration frequency of the tyre. In the event of a “standing wave” phenomenon, the vehicle will be violent jitter, the tyre will be due to rapid warming and blasting, this situation is the most dangerous.
3.- When the vehicle is running on a road with water, if a certain speed is reached, there will be a “lubricating oil film” like a sliding bear