In this article, a non-linear bearing dynamic model considering bearing clearance, friction and slip is formulated, and the kinetic model is combined with Archard wear theory to investigate the wear characteristics of rolling bearing. Firstly, through the kinetic equations, the non-linear contact force and contact surface slip velocity during the operation of the bearing are calculated. Then, the calculation results are brought into the wear model to obtain the wear distribution of the outer raceway of the bearing. With the radial clearance of the bearing after wear, the kinetic model is updated to study the wear characteristics of the bearing as well as the vibration response of the bearing. The trend of the wear distribution of the bearing under different surface roughness is also studied. The results show the roughness has significant impact on the wear of bearings. The wear rate of the bearing outer race under the roughness of σ = 0. 42 μm is 6. 9 times of that of σ= 0. 2 μm. The research results provide a theoretical basis for the evaluation of the operating condition and life prediction of bearing systems.