Aiming at the vibration of flexible angular contact ball bearing,a dynamic model of flexible angular contact ball bearing considering waviness was proposed.In the model,the effects of lubrication and surface waviness of inner and outer ring on bearing dynamics were considered.On this basis,the influence of the inner and outer ring waviness amplitude of the bearing on the vibration of the angular contact ball bearing was studied.The simulation results show that the vibration of the angular contact ball bearing increases with the increase of the inner and outer ring waviness amplitude;the vibration of the flexible ring body is larger than that of the rigid ring body;the waviness order affects the characteristic frequency of the acceleration;the flexible deformation in the process of rotation intensifies the influence of inner and outer ring waviness on vibration.A bearing vibration test-bed was built to verify the correctness of the dynamic model.