If the mass of the wheel is not evenly distributed, the rotation is not smooth, and the wheel balance is poor, which is an important reason for the driving and swaying. North wheel V3 accessories wheel shimmy is mainly wheel spoke, North Ben V3 accessories wheel hub, tire and other components in production and repair process, there are many problems such as accuracy error, uneven material and improper assembly. The greater the imbalances, the faster the speed, the more obvious the vibration, which endangers the safety of the driving. Therefore, the vehicle North V3 accessories wheel hub and brake drum must be static balance check before the assembly.

In the production process of automobile tires, the molding operation and the size of each part have error. The overlap and accumulation of these errors often cause the uneven distribution of the circumference of the tires. When running at high speed, it will cause different parts of centrifugal force, causing the front wheel to swing around the main pin and vibration, and impact on the rotating surface, resulting in uneven wheel beating, shaking and tread wear. Therefore, tyres are subjected to static balance, and in its place on the tyre mark (color and symbol), a balance point, it should be L80 degrees of loading and fetal mouth, can make the tire unbalance compensation, in order to balance.

After the refurbishment of the tires and the cushion, the balance measures are not taken. The round quality of the tires varies greatly, and the rolling will be produced when rolling. In operation, impact and eccentric wear are concentrated at a point. When the tire is serious, the crown will be oval and worn. It is not necessary to replace the swaying larger rim in vehicle maintenance. The repaired or renovated tire should not be installed on the front wheel, so as to reduce the front wheel shimmy and ensure the safe operation.