Roller bearing has amount of crowning on roller side and on raceway surface of inner ring following two points in generatrix direction of roller from bearing ring center

摘要

The roller is cylindrical or cone-shaped where amount of crowning ( delta ) on roller side and on raceway surface of inner ring follows two points in generatrix direction of roller from the center of bearing ring satisfying certain relations. The roller has the crowning profile satisfying certain relations, 2/E' = (1-( nu )12)//E1+(1-( nu )22)//E2 where E' = equivalent elastic rate, E1, E2 = Young's modulus of roller and inner ring, nu 1, nu 2 = Poisson's ratio of roller and inner ring.