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The rim is the part of the wheel that fixedly installs the tire, and the hub is the rotating component that connects the wheel and the axle and is responsible for bearing the load between the tire and the axle. The spokes are the parts that support the rim and hub. If it is made of aluminum alloy, it is called aluminum alloy rim and hub.
After continuous improvement, under the conditions of modern industrial technology, the wheel hub has become a fully functional integral component. It is responsible for the functions of carrying vehicle weight, transmitting power, and tire heat dissipation, and as a rotating moving part, under the premise of a certain rigidity, the hub must meet the conditions of light weight, fatigue resistance, and dynamic balance. Compared with steel wheels in the past, the weight of aluminum alloy wheels is greatly reduced: under the same size and strength, the mass of aluminum alloy wheels is about half of that of steel wheels. Lightweight aluminum alloy wheels can make the vehicle dynamic performance better, while making the vehicle fuel efficient and good heat dissipation.
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