What kind of car has four tires and has a little inner character?

Because in fact, the wheels of all cars are crooked. Of course, this is not a mistake of the car factory, nor an unsolvable problem, but a deliberate one. Generally speaking, the four wheels of a car are not perpendicular to the ground, but have a certain angle with the vertical plane. The camber facing the front wheel is a bit like the inner splayed foot we often say.

This design can make steering lighter, and at the same time reduce the load of outer bearing and hub nut. Imagine that when the car is fully loaded, the weight will cause the axle to deform and form the wheel tilt, which will definitely accelerate the wear of the car tires. So the car is empty and the front wheel is crooked.

The reason why the four tires of a car are a little splayed.

The camber of the front wheels of ordinary family cars is mostly around 1 degree, but for those vehicles that need high-speed and sharp steering, the camber of the front wheels can be reduced or even negative. F 1 racing car is a typical example. In addition to this skew, the front wheel is actually a little skewed. Looking down, this skew is the included angle between the forward direction of the car body and the plane where the front wheels are located, which we call toe angle.

When the car turns, the steering wheel will automatically and slowly return to the right, which has a lot to do with this toe angle. Looking down, these designs actually have certain indicators and parameters, but as car owners, there is really no need to write them down, just have a basic understanding and not be laughed at.

If you drive normally, this will not happen to the right front wheel. The figure of eight on the inside of the right front wheel indicates that the bearing of the vehicle is damaged. For example, if the speed is high through bad roads or the vehicle is hit, the bearing is damaged or there is a problem in front of the vehicle, then only the bearing and the front axle can be replaced. Bearing and front axle are related to safety configuration, and original fittings need to be replaced.