Static structural analysis of rolling ball bearing

Peter Šulka,Milan Sapieta,Vladimír Dekýš,Alžbeta Sapietová,D Stančeková,N Čuboňová,M Vaško,A Rudawska,J Szabelski,A Sapietová,J Mrázik,V Tlach

doi:10.1051/matecconf/201824401023

Abstract

In this paper, an effort has been put to analyze the rolling ball bearing using finite element analysis the contact pressure level, stress or displacement behavior of rolling ball bearing. The obtained results were then compared with the analytical results obtained through the methodology of Hertz theory in order to demonstrate an almost identical similarity of results and correct setting up of the given simulation in computational software ANSYS Workbench.

Highlights

Rolling bearings are among the most important components of conveyor belts, working machines or various rotary mechanical applications and, the trend of increasing demands in terms of their production, accuracy, load-bearing capacity and reliability is increasing.Their application lies in all branches of industry, from the production of heavy duty machinery in mining and stamping, in all modes of transport or in automotive or aviation, to the application of miniature bearings to high speed dental drills.First of all, who drew and invented the ball-bearings was Leonardo da Vinci around the year 1500
Rolling bearings allow for the transfer of forces between the moving and fixed parts of the mechanical system and are designed to minimize friction arising from power and energy transfer
The elliptical contact surface for two components with identical elastic modulus E and Poisson constant is defined according to Hertz theory with respect to the main axis

Summary

Introduction

Rolling bearings are among the most important components of conveyor belts, working machines or various rotary mechanical applications and, the trend of increasing demands in terms of their production, accuracy, load-bearing capacity and reliability is increasing. Rolling bearings allow for the transfer of forces between the moving and fixed parts of the mechanical system and are designed to minimize friction arising from power and energy transfer. Due to their multiple use, increasing emphasis is placed on their development and improvement, because in many cases the bearings do not provide the required durability according to the calculation values. Researchers still continue with the intensive development and research in field of rolling bearings with purpose to investigate new theory of bearing aspects, solving significant parameters and values of rolling bearings in order to ensure maximum quality and accurate prediction

Hertz theory

Computation of contact pressure based on Hertz theory

Computation of contact pressure based on finite element method

Conclusion