Dynamic Characteristics of Cylindrical Roller Bearing with Cage Pocket Deformation

Cage pocket beam deformation occurs due to susceptibility to impact loads under high-speed operating conditions and ultimately alters the bearing’s dynamic characteristics. Regarding the dynamics of localized cage deformation, rollers’ interactions, raceways, and a cage were incorporated, and a rigid–flexible coupled cylindrical roller bearing was modeled dynamically, considering localized cage deformation. The dynamic equations were solved using an adaptive variable-step BDF predictor–corrector algorithm to characterize the behavior of the bearing system. Localized deformations of the cage affected the dynamic characteristics of the bearing. The results show that the cage beams deformed, which increased the local clearance between rollers to a certain extent and was beneficial for the stability of roller motion. However, further increases in clearance can induce roller slippage, suggesting that changes in local clearance are the primary cause of roller slippage.