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http://dx.doi.org/10.9725/kstle-2013.29.4.218

CFD-Based Flow Analysis of Rolling Elements in Water-Lubricated Ball Bearings  

Jo, Jun Hyeon (Dept. of Mechanical Engineering, Yonsei University)
Kim, Choong Hyun (Center for Bionic Systems Korea Institute of Science and Technology)
Publication Information
Tribology and Lubricants / v.29, no.4, 2013 , pp. 218-222 More about this Journal
Abstract
Water-lubricated ball bearings consist of rolling elements, an inner raceway, an outer raceway, a retainer, and an operating lubricant. In the water environment, ball bearings are required to sustain high loads at high speeds under poorly lubricated conditions. For the analysis of bearing behavior, friction torque is considered as the main factor at various flow rates, rotating speeds, and roughnesses between the rolling element and raceways. When the bearing operates at high rotating speeds, the friction torque between the raceway and rolling elements increases considerably. This frictional torque is an important factor affecting bearing reliability and life cycle duration. For understanding the flow conditions in the inner part of the bearing, this study focuses on the flow around the rotating and revolving rolling elements. A simple model of fluid flow inside the ball bearing is designed using the commercial CFD program ANSYS.
Keywords
water-lubricated ball bearing; fluid flow; torque;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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