Journal of Jilin University(Engineering and Technology Edition) ›› 2018, Vol. 48 ›› Issue (5): 1508-1514.doi: 10.13229/j.cnki.jdxbgxb20170652

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Influence of squirrel-cage flexible support on the dynamic performance of ball bearing

MAO Yu-ze, WANG Li-qin   

  1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2017-06-23 Online:2018-09-20 Published:2018-12-11

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Abstract: An integrated squirrel-cage flexible support ball bearing quasi-dynamic iterative Finite Element Model (FEM) is established, which is used to calculate the deformation of the support structure and raceway. The dynamic characteristics of the bearing are analyzed using the noncircular raceway quasi-dynamic model. The internal load distribution of the integrated squirrel-cage flexible ball bearing is studied, and the influence of the integrated flexible support structure on the dynamic characteristics of the bearing is analyzed. The results show that the integrated squirrel-cage flexible support structure reduces the maximum bearing internal contact load by 10.94%, increases the fatigue lifetime by 11.3%, reduces the bearing radial stiffness by an order of magnitude, and increases the slide ratio by 15.8%.

Key words: machine design and theory, rolling bearing, flexible support, structural deformation, load distribution, fatigue life

CLC Number: 

  • TH133.33
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