Slippage Analysis of Rolling Bearings with Various Profiles of Rolling Elements

Rolling bearings play a crucial role in aerospace engine rotor systems by providing support to shafts, transmitting loads, and facilitating motion. A four-degree-of-freedom quasi-static analysis model, based on the Hertz elastic contact theory, is developed to examine the slip characteristics of cylindrical roller bearings. Comparative analysis reveals that, under different operating conditions, an increase in radial load leads to a gradual reduction in cage slip rate. The initial speed of the inner ring has minimal impact on bearing behavior during steady-state operation, but as the speed rises, the cage slip rate gradually increases. Additionally, essential structural parameters like the number of rollers and radial clearance significantly influence the bearing performance. Notably, different roller profiles result in substantial variations in the performance of roller bearings, necessitating their design and usage in engineering applications based on practical considerations.