Roller profiling to increase rolling bearing performances

10th International Symposium Machine and Industrial Design in Mechanical Engineering

工业技术;机械制造

Tudose, L.^1,2 ; Tudose, C.^2

Technical University of Cluj-Napoca, Faculty of Machine Building, Bd. Muncii 103-105, Cluj-Napoca

400641, Romania^1

RKB Europe, Department of Advanced Calculation and Optimization, Via Primo Agosto 1, Balerna

6828, Switzerland^2

关键词: Bearing life;    Complex procedure;    Compressive loads;    Cylindrical rollers;    Low stress;    Optimization problems;    Roller profiles;    Rolling bearings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/393/1/012002/pdf
DOI  :  10.1088/1757-899X/393/1/012002

学科分类：工业工程学

来源: IOP

【 摘 要 】

The roller profile is of paramount importance in rolling bearing design because, under the most bearing loadings, it should provide low stresses and a long bearing life. But, unfortunately, it is impossible to find a universal optimal profile for a certain roller whatever the actual compressive load on the roller is. In the first part of this paper a complex procedure to find the optimal log-profiles of the cylindrical rollers (appropriate to specific bearing loading ranges) is presented. Since, for economic reasons, many times it is necessary to machine a simplest profile, in the second part of the paper a method to find the best 2ZB approximation (partial crowned profile) of the optimal profile of the rollers of a cylindrical roller bearing is given. The purpose is defined as an optimization problem and solved by means of Evolutionary Algorithms. To validate the optimization and considering four significant criteria, the obtained profile was compared with the optimal one and the full crowned profile used until recently.