Do I need to do dynamic balancing after tire repair?

Do you need to do dynamic balancing after tire repair? Try to analyze the necessity of tire balancing from the perspective of mechanics

Recently, there is a hot topic, that is, whether the vehicle needs to be dynamically balanced after the tire is repaired?

Pro: It is not only necessary to do dynamic balancing after patching, as long as the tires are disassembled, they need to be rebalanced and calibrated!


Opposing side: It doesn’t matter whether to do dynamic balancing or not, this is a means for businessmen to make money, so don’t be fooled!


About such a serious difference of opinion, has always existed in the car circle, then I will analyze the principle of dynamic balancing from the mechanical point of view, after reading it, I think it will be helpful to you.

We need to be clear about a concept before we get into the dynamic balance, that is, the vehicle driving process carrier tires, specificity to be divided into hubs and tires, although the two are closely installed together, but can not simply be seen as a whole.


Wheel in the production process, because of material density or workmanship, especially the location of the wheel above the installation of the valve column, its weight will inevitably be different from other locations on the edge of the wheel, so we will find many new cars after the factory, there will be an orange or white solid point on the top of the wheel, this point represents the entire wheel in the process of high-speed rotation, the longitudinal vibration of the smallest point, so the objective point is simply the wheel is a circle of uneven force.

The same is true for the tires mounted on top of the wheel. Careful friends should find that all tires are designed with a red solid point and a yellow hollow point on the side, with the red solid point representing the location of maximum longitudinal vibration during rotation and the hollow yellow point representing the location of minimum longitudinal vibration when the tire is rotating.

Based on the above conditions, although our production process is getting better and better, but the tires and wheels in the production process, the left and right sides can not achieve a perfect balance, so we will install the tires in the process, the lightest hollow yellow point on the tire aligned with the heaviest position on the wheel, that is, the location of the installation of the valve column, if the rim is marked with the lightest point, we can also be the heaviest solid red dot position on the tire aligned with the lightest point on the wheel, so as to try to balance the tire and the wheel as a whole force.

Scroll to Top