The hub-bearing assembly is one of the fundamental components of modern vehicles. A bad hub-bearing can cause phantom noises or ghost vibrations at sporadic points during the drive. In this paper, effects on the clearance of the bearing are investigated by both the analytical method and the Finite Element Method (FEM). It is found that the assembly process, the initial setting clearance, the rotating speed, the thermo-expansion contribute to the clearance of automotive hub bearing. The fundamental study is the basis for analyzing the dynamic performance and noise of the bearing. Also, it can be extended to optimize the assembly process.
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