1. Wear of crown shoulders
If the tire crown and shoulders are worn, it may be caused by insufficient tire pressure or overload of the car. At the same time, insufficient tire pressure or automobile overload will increase the fuel consumption of the automobile, and the tire temperature will be too high, resulting in tire puncture.
2. Wear of crown center
The main reason of tire crown center wear is that the high tire pressure reduces the contact area with the ground, which leads to tire crown center wear. Excessive tire pressure will also lead to excessive stretching of the cord layer, and tire puncture may occur on some uneven roads.
3. Eccentric wear occurs inside or outside the crown.
The reason for the eccentric wear of the crown inside or outside may be that the toe-in of the front wheel of the automobile is unqualified or the camber angle of the wheel is abnormal. If there are many sharp turns during daily driving, there will also be eccentric wear on the inside or outside of the crown.
4. The tire crown is wavy or disc-shaped.
Generally, the wear of tire crown is wavy or vegetable-edge-shaped, which is due to the poor dynamic balance of automobile wheels, the tire being eaten when steering with the steering wheel, or the incorrect positioning of automobile front wheels. Therefore, it is necessary to check the automobile tires during driving, so as to avoid the failure caused by abnormal automobile tires and unnecessary losses to the owners.
Extended data:
The solution of eating fetus;
1, adjust the tire pressure.
The tire shoulders at both ends eat tires, and the tire pressure is too small; Eating a tire halfway, the tire pressure is too small. Pay attention to replenish fetal air in time to avoid overload;
2, do four-wheel positioning
Chewing on the outside of the tire may be due to excessive toe-in or camber, bending of the steering knuckle arm, etc. And the tire eats the inside because the toe-in or camber angle is too small, which requires four-wheel alignment correction;
3. Replace the rubber sleeve and adjust the wheelbase.
All tires wear on the same side regularly, and the rubber sleeve of the thrust rod is damaged, so it is necessary to replace the rubber sleeve and adjust the wheelbase;
4. Repair or replace the balance beam.
One tire or several tires with grooves on the top are worn, which may be due to the looseness of tie rod or the wear of balance beam, so it is necessary to repair or replace the balance beam and tighten the tie rod;
5. Replace the high-quality steel ring
The irregular eating of a tire is caused by the deformation of the steel ring, and it is necessary to replace the high-quality steel ring in time;