Wheel hub injuries are also relatively common. For example, parking on the side of the road rubs against the curb, slants up and down the curb, hits a stone when turning, etc. If you observe carefully, there are injuries on the wheels of many cars. So does the wheel hub need to be replaced if it is scratched? What else needs to be replaced? Today we are going to talk about some problems with replacing the wheel hub in detail.
The surface of the hub is scratched by the scratches, but the paint is off, and it does not need to be replaced. Sometimes the scratches are very large, and it looks like a serious appearance, but it still does not need to be replaced because the performance is not affected. Only the aesthetics are affected, just like the paint on the car body is scratched off, it is impossible to replace the paint on the car body, it must be painted. The same is true for the wheel hub. If the area is large, you can do a painting repair. There is a place for repairing the wheel hub. If you can't find it, you can go to a repair shop or a 4S shop.
A piece or piece of the wheel hub has been rubbed off, and it needs to be replaced if it is uneven? As long as it is not at the most edge, it does not need to be replaced. Through the repair of the wheel hub, even if a piece is lost, it can be repaired, and there is no problem in aesthetics. If the edge of the wheel is missing a piece, it needs to be replaced, because it may affect the airtightness. Even if there is no air leakage at the time, it is not strong enough to maintain airtightness, and the tire may blow out in an extreme state. Car tires do not have inner tubes, only outer tires. How to maintain airtightness? That is after the tire is inflated, the tire expands outward, the edge is just stuck on the edge of the hub, and the airtightness is maintained by the close fit of the tire and the hub. If the rim of the wheel is damaged, it will inevitably affect the airtightness, and the risk of a flat tire will increase.
Even if the rim of the hub is not rubbed off, but it is deformed by rubbing, it is very common and needs to be replaced. Don't look at whether there is air leakage at the time, the hubs are deformed, the airtightness will definitely become bad, there will be slow air leakage, and the tire is easy to blow out in extreme cases, so it must be replaced. Therefore, it can be seen that no matter how the wheel is injured, it is enough to replace the position of the injury. As long as the edge is damaged, it must be replaced. If the edge is not damaged, it does not need to be replaced. The price of a wheel is not cheap, it is much more expensive than a tire, so try to repair what can be repaired, and resolutely replace what cannot be repaired.
The above is to observe whether it needs to be replaced with the naked eye. Another situation is that the external force on the hub is relatively large, resulting in deformation, so it also needs to be replaced. If the deformation is small, it cannot be seen with the naked eye, and it needs dynamic balance to see it. When the wheel rotates on the balancing machine, it is seen that the left and right shaking is relatively serious. From the perspective of the balance value, the standard deviation value is relatively large, and some can be more than 100 grams or even more than 200 grams, which is caused by the deformation of the wheel. The balanced block is generally unable to achieve balance, and it is best to replace it. Although the slight deformation of the wheel hub will not cause a tire blowout, the steering wheel will shake seriously when driving at high speed, which is also more dangerous and the driving experience is very bad.
If the hub is not bumped or hit, it does not need to be replaced for life, and it can have the same life as the car. There is no saying that it must be replaced after many kilometers. When the tire life is up, you can only replace the tire, and the wheel does not need to be replaced no matter how worn it is. One last thing to note is that if the wheel hub is bumped, the tire is likely to be bumped too. Although there was no flat tire or bulge at the time, you must observe the tire more when you use the car for a period of time. No drum kits. It is possible that the tire is injured and the cord is broken. There was no bulge at that time. It took a while for the bulge to bulge. Timely detection can avoid the risk of a tire blowout.
