NDLI: Stiffness Optimization of Hollow Cylindrical Rolling Element Bearing

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Darji, P. H. Vakharia, D. P.
Copyright Year	2008
Abstract	Since being originally introduced, cylindrical rolling element bearings have been significantly improved, in terms of their performance and working life. A major objective has been to decrease the Hertz contact stresses at the roller–raceway interfaces, because these are the most heavily stressed areas in a bearing. It has been shown that bearing life is inversely proportional to the stress raised to the ninth power (even higher). Investigators have proposed that under large normal loads a hollow element with a sufficiently thin wall thickness will deflect appreciably more than a solid element of the same size. An improvement in load distribution and thus load capacity may be realized, as well as contact stress is also reduced considerably by using a bearing with hollow rolling elements. Since for hollow rolling element no method is available for the calculation of contact stresses and deformation. The contact stresses in hollow members are often calculated by using the same equations and procedures as for solid specimens. This approach seems to be incorrect. Recently, the Finite Element Analysis (FEA) has been successfully used to evaluate contact problems for the roller bearings. Investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages ranging from 0% to 90% have been analysed in FEA software to find the optimum percentage hollowness which gives minimum stress and finally longest fatigue life.
Sponsorship	Tribology Division
Starting Page	423
Ending Page	426
Page Count	4
File Format	PDF
ISBN	0791843369
DOI	10.1115/IJTC2008-71009
e-ISBN	9780791838372
Conference Proceedings	STLE/ASME 2008 International Joint Tribology Conference
Language	English
Publisher Date	2008-10-20
Publisher Place	Miami, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Fatigue life Bearing stiffness Finite element analysis Hertz contact stress Hollow rolling element Deformation Rollers Bearings Computer software Contact mechanics Optimization Stress Thin wall structures Roller bearings Rolling bearings Stiffness
Content Type	Text
Resource Type	Article

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Determination of Optimum Hollowness for Hollow Cylindrical Rolling Element Bearing

Extending the Capabilities of Hertz Equation Through Theoretical and Experimental Method

Fatigue Life Investigation of Solid and Hollow Rollers in Pure Rolling Contact

Stiffness analysis of pre-loaded hollow cylindrical roller bearings based on ABAQUS

Fatigue Failure Analysis of Hollow Cylindrical Roller Bearing

Optimized Logarithmic Roller Crowning Design of Cylindrical Roller Bearings and Its Experimental Demonstration

Fatigue Life Prediction of Optimum Hollowness of Hollow Cylindrical Rollers in Pure Rolling Contact

FEM Simulation and Life Optimization of Tandem Roller Thrust Bearing

The Hollow-Ended Roller—A Solution for Improving Fatigue Life in Asymmetrically Loaded Cylindrical Roller Bearings

Stiffness Optimization of Hollow Cylindrical Rolling Element Bearing

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