New load distribution method for one-row slewing ball bearing considering retainer force

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• 作者：Yong-Hun Yu ; Bo-Ra Lee ; Yong-Joo Cho
• 关键词：Load distribution ; Slewing bearing ; 4 ; point ; Hertz contact ; Retainer force
• 刊名：International Journal of Precision Engineering and Manufacturing
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：18
• 期：1
• 页码：49-56
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering; Materials Science, general;
• 出版者：Korean Society for Precision Engineering
• ISSN：2005-4602
• 卷排序：18

文摘

This paper studied the load distribution for one-row slewing ball bearing. The contact force between the balls and raceways is calculated based on Hertz contact theory. The retainer force was considered for satisfying the force equilibrium of the balls because the contact forces from two raceways are not on the same plane. Also, there is no reaction moment for each raceway in the axial direction, so each raceway freely rotates about each axial axis. The direction of relative displacement of the two raceways is shown to differ from the direction of combined loads due to contact geometric nonlinearity of the slewing bearing. The retainer reduces the number of contact balls in the slewing bearing, so the maximum contact load increases compared to when the retainer is not considered.