04,01,2026 12 views
reason
The wheels of a car are a whole composed of tires and hubs.
However, due to manufacturing reasons, the quality distribution of each part of this whole cannot be very uniform. When the car wheels rotate at high speed, they will form a dynamic imbalance state, causing the vehicle to shake and the steering wheel to vibrate while driving.
In order to avoid or eliminate this phenomenon that has already occurred, it is necessary to adjust the balance of each edge part of the wheel dynamically by increasing the counterweight. This correction process is commonly referred to as dynamic balance. That is commonly referred to as installing a balance block; It is made of lead alloy, measured in grams, including 5 grams, 10 grams, 15 grams, etc. Don't think that the mass is small, as the high-speed rotation of the wheels will generate a large centrifugal force. There is a steel hook on the balance block that can be fastened onto the edge of the wheel rim.
reason
1. During the processing of wheel hubs and brake drums (discs), the axis positioning is inaccurate, the processing error is large, the non machined surface casting error is large, the heat treatment deformation is large, and the deformation or wear during use is uneven;
2. Unequal quality of wheel hub bolts, uneven distribution of wheel hub quality, or excessive radial and end face circular runout;
3. Uneven distribution of tire quality, significant size or shape errors, uneven deformation or wear during use, use of refurbished tires or pads, and tire repairs;
4. The inflation nozzles of the twin tires are not installed 180 degrees apart, and the inflation nozzle of the single tire is not installed 180 degrees apart from the unbalanced point mark;
When disassembling and reassembling the wheel hub, brake drum, tire bolt, wheel rim, inner tube, lining belt, tire, etc. into a tire, the accumulated unbalanced mass or positional deviation is too large, which destroys the original balance.
step
To achieve dynamic balance, there are four steps: first, remove the logo, install the dynamic balance device on the wheels, and select a suitable size stabilizer. First, pull out the ruler on the dynamic balance meter, measure it, and then input it into the controller.
The second step is to take out the bending ruler and measure the width of the wheel rim, which is also inputted into the second controller.
The third step is to input the wheel rim diameter into the controller and press STRAR to start.
After the detection stops, the computer will measure the weight that needs to be added to the inner and outer sides of the wheel rim. First, install the outer side, rotate the tire, and follow the prompts to knock the weight on.
Dynamic balancing is only applicable to a single tire, with the aim of preventing the tire from losing its center of gravity during rotation. To achieve dynamic balancing, simply remove the tires, turn on the balancing machine, and check the displayed values.
On both sides of the wheel hub, simultaneously tap the corresponding weight balance block (a small tin block with a buckle, with the weight marked on it). However, it should be noted that if 10 and 15 are displayed on the left and right sides respectively, two balance blocks weighing 10 and 15 should be tapped on both sides at the same time, instead of just tapping a balance block weighing 5 on the right side, which does not meet the requirements.
Tires should undergo regular dynamic balance checks using a dynamic balance tester. Tire balancing is divided into two types: dynamic balancing and static balancing. Dynamic imbalance can cause the wheels to sway, resulting in wavy wear on the tires; Static imbalance can cause bumps and bouncing, often resulting in flat spots on the tires. Therefore, regular balance checks can not only extend tire life, but also improve the stability of the car during driving, avoiding traffic accidents caused by tire oscillation, jumping, and loss of control during high-speed driving.
main advantages
1. Enhance driving comfort;
2. Reduce gasoline consumption;
3. Increase the service life of tires
4. Ensure the straight stability of the vehicle;
5. Reduce the wear and tear of chassis suspension components;
6. Enhance driving safety.
Situations requiring dynamic balancing
1. After replacing a new tire or repairing a collision accident;
2. Unilateral uneven wear of the front and rear tires;
When driving, the steering wheel is too heavy or floating and shaking;
When driving straight, the car deviates to the left or right;
Although there are no such conditions mentioned above, for maintenance purposes, it is recommended that the new car be driven for 3 months and then every six months or 10000 kilometers thereafter.
