The wheel of a car is a whole made up of tires and wheels. However, due to manufacturing reasons, the mass distribution of the entire part cannot be made very uniform. When the car wheel rotates at a high speed, a dynamic imbalance occurs, causing the vehicle to shake and the steering wheel to vibrate while the vehicle is running. In order to avoid this phenomenon or to eliminate the phenomenon that has already occurred, it is necessary to make the wheel correct the balance of each edge portion by increasing the weight in a dynamic situation. The process of this correction is the dynamic balance that people often say. When you find that the steering wheel is shaking when the vehicle is driving at high speed or there is some rhythmical noise on the wheels during driving, it is possible that the wheels should be balanced, especially after replacing the tires, wheels or tires. The wheel should be balanced by excessive impact, loss of balance due to bumps, and so on. Don't underestimate the dynamic balance of the wheel, don't underestimate the small lead pieces that are inconspicuous. If the wheel balance is not good, it will cause abnormal wear of the tire, which will also affect the stability of the vehicle. Especially in the front wheel, the vibration will be transmitted to the steering wheel through the steering system, which not only affects the driving of the driver's friend, but also causes the steering system to be loose. When the vehicle is used for a long time, the user finds that the direction is heavy, trembling, deviation, misalignment, non-homing or tire unilateral wear, wavy wear, block wear, eccentric wear, etc., and when the user is driving, the car When floating, bumps, swaying, etc. occur, you should consider checking the wheel alignment value to see if there is too much deviation and repair it in time.