Characteristics of tapered roller bearing subjected to combined radial and moment loads

Abstract

This paper investigates characteristics of the TRB such as displacements, contact forces between roller and inner ring, outer ring and flange, contact angle between roller and flange, load distribution along roller, and stiffness matrix, when the TRB is subjected to combined radial and moment loads. Understanding of these characteristics deserves attention for developing more sustainable TRBs. To this end, a five-degree-of-freedom model of TRB is employed. Unlike other studies, this paper takes TRB displacements as unknown variables and determines them by iteratively solving the roller and bearing equilibrium equations. A new formula for load variation in rollers is also presented by using an integration technique. The developed method is validated by comparing preliminary results with those from a reference program. The characteristics of TRBs subjected to combined radial and moment loads are simulated as a function of roller profile and rotational speed.