The influence of internal geometry parameters of a cylindrical roller bearing on wear between roller ends and inner ring flanges under high-speed loading conditions typical for gas turbine engines was investigated. Dynamic modeling of 75 design parameter variants of bearing size 2002834 was performed, including operational clearances, number of rollers, misalignments, and temperature regimes. Finite element analysis was used to estimate contact pressures, friction forces, and wear rate in the contact between roller ends and inner ring flanges. It was established that ring misalignment leads to a sharp enhance in wear due to boundary friction. A solution is proposed—a convex shape of flange ends, which ensures hydrodynamic lubrication conditions and reduces wear.
Klebanov et al. (Mon,) studied this question.