Calculation Method for Contact Stress of Double-Row Self-Aligning Asymmetric Spherical Roller Bearings
In order to analyze the contact stress of double-row self-aligning asymmetric spherical roller bearings under radial load conditions,a numerical analysis model of the bearings is established based on internal geometric relationship of this kind of bearings and non-Hertzian contact theory,and Newton's method is used to solve the model.Taking a double-row self-aligning asymmetric spherical roller bearing as an example,the effects of radial load,radial clearance,radius of inner raceway,radius of roller profile modification and peak point position of roller profile on bearing contact stress are calculated and analyzed.The results show that as the radial load and radial clearance increase,the contact stress on central area and edge of inner raceway also increases;as the radius of inner raceway increases,the contact stress on central area of inner raceway increases and the edge stress decreases;as the radius of roller profile modification increases,the contact stress on central area of inner raceway decreases and the edge stress increases;as the distance between peak point position of roller profile and large end face of roller increases,the contact stress on central area of inner raceway changes less,and the edge stress decreases.
rolling bearingspherical roller bearingcontact stressedge effectradial loadradial clearance
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