Characteristics Analysis of Angular Contact Ball Bearing Based on the Oil Film Stiffness1
The bearing stiffness model is established based on the Hertz contact theory and the hydrodynamic lubrication theory of rolling bearing in this paper, the dynamic characteristics of the angular contact ball bearing and the relationship between the bearing preload, the speed and the stiffness of the angular contact ball bearing is analyzed, as well as the influence of the oil film stiffness on the bearing total stiffness. The results from taking 71924ACD/P4A bearing as an example shows that the preload and the speed have important effect on the stiffness of bearing. By the contrast of two kinds of situations, a conclusion can be drawn that when considering the oil film stiffness,the total stiffness reduces 0-40% than not considering the oil film stiffness.
Z. F. Liu et al., "Characteristics Analysis of Angular Contact Ball Bearing Based on the Oil Film Stiffness1", Key Engineering Materials, Vols. 480-481, pp. 599-604, 2011