Optimized internal geometry reduces bearing friction and heat generation;
The logarithmic profile reduces edge stresses at the roller/raceway contact under all loading conditions (Fig. 2). Furthermore, the logarithmic outer ring outer diameter profile reduces edge loading during operation and helps extend service life.
The surface treatment of the roller and raceway contact surfaces is conducive to the formation of hydrodynamic lubricating oil film.
Most backing bearings have lubrication holes, and many have one or more annular grooves in the inner race to allow lubrication by the backing shaft.
