The reason why the front wheel of freight car chews the tire;
1. Four-wheel alignment is not accurate: if four tires are not in the horizontal and vertical straight lines required by the standard, then two wheels on the same side will eat tires when driving, or the front or rear wheels will correct themselves, mainly because the vehicle does not walk in a straight line, resulting in abnormal friction between a certain part of a tire and the ground and accelerating wear;
2. Inappropriate toe-in adjustment can also lead to fetal eating. Toe is the angle at which the front wheel leans slightly inward, similar to the inner figure of eight. This is the best angle for high-speed and stable driving. All cars have their own toe angle. If this angle is not adjusted well, it will eat the fetus. The reason is the same as the first one;
3. Uneven and deformed girders can also lead to tire wear. For example, some accident cars eat tires because the beam is deformed.