Effect of dynamic behaviors of bearing components on friction consumptions of ball bearings at various structural sizes of cage

In this work, a novel dynamic model with estimating its friction consumptions is developed to study the effect of dynamic behaviors of bearing components on friction consumptions at various structural sizes of cage, which is a novel solution for effectively guiding the structure matching design of bearing components to mitigate the power consumption of ball bearings. Based on this model, the influencing factors for different friction consumptions are analyzed at various structural sizes of cage. The effects of structural sizes of cage on the friction consumptions are revealed. The results indicate that a favorable combination of pocket diameter and large diameter of cage can attain the low friction consumption of ball bearings, also, a compromise between the good dynamic stability of cage and the low friction consumption of ball bearings can be conducted to determine the thickness of cage.