1, steel wheel hub
The main advantages are simple manufacturing process, relatively low cost and strong metal fatigue resistance, which is also commonly known as cheap and good quality. However, the disadvantages of steel wheels are more prominent, that is, ugly appearance (it can be said that there is no appearance at all), heavy weight, large inertial resistance, poor heat dissipation and easy to rust.
2. Alloy wheel hub
Alloy wheel hub can just make up for the shortcomings of steel wheel hub, with light weight, low inertia resistance, high manufacturing accuracy and small deformation when rotating at high speed, which is beneficial to improve the straight-line driving performance of the car and reduce the rolling resistance of the tire, thus reducing fuel consumption.
The thermal conductivity of alloy material is about three times that of steel, and it has good heat dissipation, which can play a certain role in the thermal attenuation of vehicle braking system, tire and braking system.
However, compared with steel wheels, alloy wheels are much more expensive, so often in many low-end original cars, steel wheels will appear on low-profile models, while alloy wheels are standard on high-profile models.
Extended data
Method of identifying original wheel hub
1, depending on the workmanship
Generally, the work of high imitation and deputy factory wheels is very rough. Because the mold precision of the wheel hub in the auxiliary factory is not high, there will be piercing burrs and burrs at the corner of the wheel hub. Due to the cost problem, the original wheel hub will be painted in the same color inside and outside, while the auxiliary factory and high imitation wheel hub have great color difference inside and outside due to the cost problem. From the appearance and workmanship, it is easy to distinguish between the original factory wheel and the deputy factory wheel.
2. Look at the font on the wheel hub
Whether it is the original hub or the sub-factory hub, there are data such as the brand, origin and ET value of the hub on the back of the hub. However, the font of these data in the original hub cannot be imitated by the auxiliary hub. Therefore, the owner can remove the hub from his car when purchasing the hub. Compared with the wheels to be purchased, if the fonts in the two wheels are different, the owner should not buy them.
Step 3 look at the weight
Because of the difference in cost and technology, the weight of the wheel hub of the deputy factory is also very different from that of the original factory. Therefore, when the owner buys the wheel hub, he can remove the original wheel hub and compare it with the wheel hub to be purchased. If the weights of the two wheels are different, there must be something wrong with the wheel hub that the merchant took out for you.
Step 4 look at the price
Whether it is the original hub or the removed hub, the price will not be very low. Take the wheel hub of Mercedes S600 as an example. The price of the wheel hub sold by Auto Parts City is about 2000 yuan, while the wheel hub of the auxiliary factory is only a few hundred yuan. If the price given by the merchant when buying the wheel hub is too low, or the profit margin is large, then there must be something wrong with changing the wheel hub.
People's Network-If you want to upgrade the wheels of your car, you need this knowledge!
People's Network-Teach you how to identify the original hub. Never be greedy for petty gain.