Abstract
The article deals with an optimization procedure of roller elements geometry with regard to durability of spherical roller bearings. The aim of the article is to examine the impact of change of the roller elements inner geometry on durability and reliability of spherical roller bearings; the contact strain along a spherical roller by means of the Finite Element Method at contact points of components of a spherical roller bearing by means of designed 3D parametric models. The most appropriate shape of roller elements inner geometry of a bearing from the standpoint of calculated durability was determined based on results of the contact analyses.
Highlights
Roller bearings are an inseparable part of most machines and devices in which there takes place a rotation movement or a linear motion
The new geometry of the spherical roller bearing formed by the logarithmic curve is the most appropriate for optimization of the spherical roller bearing regarding its durability and lifespan [8]
Spherical roller bearings can be optimized by modification of the geometry of the rolling element, i.e., the spherical roller
Summary
Roller bearings are an inseparable part of most machines and devices in which there takes place a rotation movement or a linear motion. There are different requirements on roller bearings. Production machines need bearings, which are able to work in high revolution, in power engineering bearings have to carry heavy loads, etc. Development, or rather rolling bearing optimization, is conditioned by an increase of technical parameters in machines and devices. This fact refers especially to an increase of input parameters such as power and revolution, weight and volume reduction, noise level reduction, etc. The most important parameters requiring optimization are the bearing lifetime and reliability
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