The wheel of a car is a whole composed of tires and wheels. However, due to manufacturing reasons, the mass distribution of all parts of the whole can not be very uniform. When the automobile wheels rotate at high speed, it will form a dynamic imbalance state, which will cause wheel jitter and steering wheel vibration when the vehicle is running. In order to avoid or eliminate this phenomenon, it is necessary to correct the balance of each edge part of the wheel by adding counterweight under dynamic conditions. This correction process is usually called dynamic balance.

Tires should be regularly checked for dynamic balance and checked with a dynamic balance tester. Wheel balance can be divided into dynamic balance and static balance. Dynamic imbalance will make the wheels shake and make the tires wear in waves; Static imbalance can cause bumps and jumps, which often leads to flat spots on tires. Therefore, checking the balance regularly can not only prolong the service life of tires, but also improve the stability of cars when driving, and avoid traffic accidents caused by the tire swinging, jumping and out of control when driving at high speed.

Extended answer:

Tires should be regularly checked for dynamic balance and checked with a dynamic balance tester. Wheel balance can be divided into dynamic balance and static balance. Dynamic imbalance will make the wheels shake and make the tires wear in waves; Static imbalance can cause bumps and jumps, which often leads to flat spots on tires. Therefore, checking the balance regularly can not only prolong the service life of tires, but also improve the stability of cars when driving, and avoid traffic accidents caused by the tire swinging, jumping and out of control when driving at high speed.