Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula

Abstract

This paper performs the fatigue life analysis of the radial Cylindrical Roller Bearings (CRBs) with consideration of various roller end-flange shapes such as toroidal-toroidal, spherical-toroidal, and spherical-conical. A novel formula for each flange contact deformation in cylindrical roller bearing with different roller end-flange geometry including toroidal geometry is developed. Inner ring misalignment angle and radial deflection results obtained from the present study are verified with numerical and experimental results from the literature. The results approach to that of literature when the flange is changed from toroidal geometry to conical geometry. Using formulas developed in the present study, the effect of various roller end-flange geometries on the bearing life is investigated for different external loadings. It is observed that the bearing life increases when the roller end and flange are changed to toroidal geometry.

Numerical model of interaction of a mobile lift chain with a main gas pipeline pipe in the process of repair work

“…Attention should also be drawn to a series of theoretical and experimental works devoted to the frictional contact of a deformable aggregate with a cylindrical shell [7,8,42], the interaction of two cylindrical shells with each other [6,18,60], and the contact of an open metal pipe with an elastic body [21,48]. In articles [5,12] the contact interaction of the roller with the bearing ring was studied and the influence of the roller shape on the service life of the bearing was determined. In work [17] using the Lankarani-Nikravesh contact model, the behavior of a pin connection with a gap was studied.…”