Resistive Torque of Roller Bearings and Dissipative Mechanisms; a Multi-Scale Numerical Approach.

This article deals with a research study on the behavior of spherical roller bearings (SRB) under radial load and low angular velocity. The resistive torque is analyzed and further investigations are conducted to understand the dissipative mechanisms (friction and plastic deformations) suspected of causing these losses. The issue is tackled combining both experimental torque measurements and a multi-scale numerical simulation of the system. Finally, we discuss and confront experimental and numerical results to sketch out a dissipation scheme for the load range investigated. [ABSTRACT FROM AUTHOR]