What is the abnormal wear of car tires

When the tread pattern of the tire tread is polished, it belongs to the abnormal wear of the tire. This is usually caused by the long-term high tire pressure, the tire tread is too wide, and the rim is too narrow. Generally, the wear of the tire occurs on the tread middle part. Normally, each tire wears uniformly.

　　

Severe wear on both sides of the tire tread, resulting in the bead being polished is also abnormal wear. This situation is caused by the long-term low air pressure of the steam tire, or the car is overloaded, and the tire does not match the rim. It is necessary to adjust the tire in time Air pressure and check fit to avoid overloading. Local dent-like wear in the circumferential direction of the tire tread is also a type of abnormal wear of the tire. There are many reasons for this wear, including insufficient tire pressure, deformation of the steel ring or out-of-round brake drum, excessive toe-in, improper wheel Balance, loose steering link connections and incorrect wheel alignment parameters. In addition, the wavy or disc shape of the tire tread circumferential direction is also a kind of abnormal wear of the tire, which is usually caused by the deformation of the rim, the imbalance of the wheel and the wear and looseness of the hub bearing, etc. The wheel alignment parameters are incorrect and the kingpin Too small a caster angle can also cause this abnormal wear.