Introduction to tire dynamic balancing

The wheel of a car is a whole composed of tires and hubs.

However, due to manufacturing reasons, the mass distribution of each part of the whole cannot be very uniform. When the car wheels rotate at high speed, a dynamic imbalance will be formed, causing the wheels to shake and the steering wheel to vibrate while the vehicle is driving.

In order to avoid this phenomenon or eliminate this phenomenon that has already occurred, it is necessary to make the wheel correct the balance of each edge part by adding counterweight under dynamic conditions. This correction process is what people often call dynamic balancing. It is also commonly referred to as adding a balance weight; it is made of lead alloy and is measured in grams, including 5 grams, 10 grams, 15 grams, etc. Don’t think that the mass is small. When the wheel rotates at high speed, a large weight will be produced. centrifugal force. There is a steel hook on the balance weight that can be buckled on the edge of the rim.

Dynamic balancing requires four steps: first remove the LOGO, install the wheels on the dynamic balancer, and select a retainer that fits the size. First pull out the ruler on the dynamic balancer, measure, and then enter the first controller.

The second step is to take out the curved ruler, measure the rim width, and enter it on the second controller as well.

The third step is to enter the rim diameter in the controller and press STRAR to start.

When the test stops, the computer will measure the weight that needs to be added to the inner and outer sides of the rim. Install the outer side first, rotate the tire, and tap the weights on according to the prompts.

Dynamic balancing is only for a single tire. The purpose is to prevent the tire's center of gravity from deflecting when it rotates. For dynamic balancing, you only need to remove the tire, put it on the dynamic balancing machine, turn it around, and see the value displayed by the machine.

At the same time, tap on both sides of the wheel hub a balance weight corresponding to the value (a small tin block with a buckle, with the weight marked on it). However, it should be noted that, for example, if the left and right display shows 10 and 15 respectively, you should tap on the left and right at the same time. Put two balance weights weighing 10 and 15 instead of just one weight 5 on the right side. That will not meet the requirements.

Tires should be dynamically balanced regularly and checked with a dynamic balance detector. Tire balancing is divided into two types: dynamic balancing and static balancing. Dynamic imbalance will cause the wheels to sway and cause wavy wear on the tires; static imbalance will cause bumps and jumps, often causing flat spots on the tires. Therefore, regularly checking the balance can not only extend the life of the tires, but also improve the stability of the car when driving, and avoid traffic accidents caused by tires swinging, jumping, and losing control when driving at high speeds.

Main advantages

1. Enhance driving comfort;

2. Reduce gasoline consumption;

3. Increase tire service life

4. Ensure the straight-running stability of the vehicle;

5. Reduce the wear of chassis suspension accessories;

6. Enhance driving safety.

Situations that require dynamic balancing

1. After replacing new tires or repairing a collision accident;

2. The front and rear tires are worn on one side;

3. The steering wheel is too heavy or floats and shakes when driving;

4. The car deviates to the left or right when driving straight;

5. Although none of the above conditions exist, for maintenance purposes, it is recommended that a new car be driven for 3 months and then once every six months or 10,000 kilometers.