What is the purpose of wheel dynamic balancing for car tires?
3 Answers
The purpose of wheel dynamic balancing for car tires is to ensure that the tires remain in a relatively stable state when rotating at high speeds, thereby maintaining normal vehicle operation. The steps for performing dynamic balancing are as follows: 1. Install the car tire on the dynamic balancing machine and secure it properly with clamps; 2. If there are old balancing weights, remove them; 3. Measure the distance from the machine to the tire rim and input the corresponding value into the machine; 4. Enter additional data, such as the tire size, into the machine; 5. Press the start button, and the tire will begin to rotate. After stopping, the machine will display the deviation value of the tire; 6. Add balancing weights to the tire according to the displayed value; 7. Continue testing. When the machine displays "00" for both values, it indicates that the dynamic balancing process is complete.
I've been driving for nearly twenty years, and tire dynamic balancing plays a significant role—it mainly ensures the wheels rotate steadily without shaking or wobbling. Back when I was young and reckless, I skipped balancing after getting new tires. The moment I hit the highway, the steering wheel vibrated so violently it numbed my hands, and the car started bouncing, nearly causing me to lose control. The reason is that tire manufacturing can't achieve perfect uniformity. When a tire is patched or has minor foreign objects, the weight distribution becomes uneven, generating centrifugal force at high speeds that makes the whole car shake. After balancing, the mechanic adjusted the weight distribution by attaching lead weights to the wheel rims. The car then drove much smoother, noise was halved, and tire lifespan increased. More importantly, this small investment prevents bigger issues: it reduces wear on suspension components, improves braking responsiveness, and ensures safety in critical moments. My advice? Don't skimp on this—always get it done after tire changes or repairs, and make it a routine check during maintenance.
From my experience in maintaining my own car, the purpose of tire dynamic balancing is to eliminate shaking and unevenness when the wheels rotate. When the wheel hub and tire are combined, there are always some uneven weight distributions—such as uneven tire wear or patches—which, if not balanced, can cause centrifugal force at high speeds, making the car body vibrate and shake. This not only makes the steering wheel rattle and the ride uncomfortable but also accelerates tire wear. Severely unevenly worn tires may have a higher risk of blowouts and affect steering precision. The solution is simple: take it to a repair shop for a balancing test, and small lead weights can be attached to correct it. I always get it done after fitting new tires, and the effect is obvious: the car runs as steady as a rock, handling improves, tire replacement frequency decreases, saving both money and hassle—totally worth it.
