Fault Diagnosis and Modal Analysis of Deep Groove Ball Bearing 

Hai WANG 

Institute of Machine Electricity and Vehicle Engineering, Chongqing Jiaotong University, Chongqing, 400074, CHINA 

Abstract: The deep groove ball bearing 6205-2RS did modeling by using three-dimensional software Pro – E, and the failure frequency conducted theoretical calculation. Then a set of data acquisition of fault signal did Fourier transform by Matlab, and using the analysis of the failure frequency results compared with the theoretical calculation results to verify the accuracy of the deep groove ball bearing parts failure. At the same time,it turned out Matlab in the analysis of fault diagnosis effectiveness. Using ANSYS modal analysis was carried out on the deep groove ball bearings to determine the vibration characteristics of bearing , making the design of the bearing can be more reasonable and more long service life. 

Keywords: Natural frequency; Fourier transform; Fault diagnosis; Deep groove ball bearing; Deep groove ball bearing