The role of the car wheels are: to bear the quality of the whole car and pass traction, braking force, driving torque, braking torque; ease, absorb due to uneven road generated by the impact and vibration; improve the adhesion of the wheel and the ground.
The wheels of the car consist of wheels, wheels, and connections between the two components. As the wheel is a rotating body, so the requirements of high dimensional accuracy, unevenness, and have a certain degree of flexibility and stiffness, fatigue, light weight, good economy and so on.
