Methodology to assess energy loss in the roller bearing roller face and outer ring side taking into account the ring and roller geometry, and the roller misalignment
Authors: Klebanov J.M., Petrov V.R.
Published in issue: #6(150)/2024
DOI: 10.18698/2308-6033-2024-6-2361
Category: Mechanics | Chapter: Theoretical Mchanics, Machine Dynamics
The paper considers two options in the cylindrical roller bearing design. The first option has bevels at the roller ends and the outer ring sides; these bevels are missing in the second option. The authors computed the contact spot position, pressure distribution diagram in the contact and thermal power losses for both the bearing designs with different roller skewness angles in pitch and yaw for the axial load values applied to the bearing. This case envisages the roller and the separator rotating at the epicyclic speeds without slipping. The roller and ring radial deformations are not taken into account, as well as the side inclination alteration due to the axial load action. The paper shows that in most cases selection of the design option with bevels leads to reduction in the power loss, which makes the design with bevels more applicable compared to the design without bevels. Using the described method in designing the cylindrical roller bearings would make it possible to assess power losses and select the bevel geometry that reduces the bearing assembly heating.
EDN PACPEJ
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