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EHL Analysis of Rolling Bearings Considering the Effect of the Number of Rolling Elements and the Shaft Load  

Hong, Sung-Ho (School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology)
Kim, Kyung-Woong (School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
KSTLE International Journal / v.10, no.1_2, 2009 , pp. 17-22 More about this Journal
Abstract
The numerical analysis of elastohydrodynamic lubrication for the ball and roller bearings is performed in order to study the effect of the number of rolling elements and the shaft load on the minimum film thickness. A finite difference method and the Newton-Raphson method are used in the analysis. For a given shaft load, the maximum load of rolling element is determined along with the number of rolling elements. And then the minimum film thickness is calculated for several rolling bearings. The shape of film thickness and the pressure distribution are also studied.
Keywords
EHL; rolling bearings; minimum film thickness; number of rolling elements;
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