Study on cone roller bearing surface roughness improvement and the effect of surface roughness on tapered roller bearing service life

Abstract

The paper deals with the impact of internal geometry and micro-geometry of functional surfaces of the cone roller bearing on internal resistance—friction of roller bearings. It describes an ideal point of contact at intersection of cone axes and raceway values, as well as the necessary values of micro-geometry, which enable the use of the bearings under the most demanding installations in the automotive industry— in differential gears, or for installation of pinions of differential gears and cog wheels in gearboxes. It describes optimisation (modification) of production of supporting face of the inner ring of the bearing, the purpose of which is to ensure this perfect point of contact, as well as required values of microgeometry of functional surfaces.