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Appl. Sci. 2016, 6(12), 415; doi:10.3390/app6120415

Study on the Load Distribution and Dynamic Characteristics of a Thin-Walled Integrated Squirrel-Cage Supporting Roller Bearing

School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
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Author to whom correspondence should be addressed.
Academic Editor: Zhong Tao
Received: 7 October 2016 / Revised: 2 December 2016 / Accepted: 3 December 2016 / Published: 14 December 2016
(This article belongs to the Special Issue Applications of Thin-Walled Structures)
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Abstract

Thin-walled integrated flexible support structures are the major trend in the development of current rolling bearing technology. A thin-walled, integrated, squirrel-cage flexible support roller bearing, quasi-dynamic iterative finite element analysis (FEA) model is established in this paper. The FEA model is used to calculate the structural deformation of the thin-wall rings and support structures; the dynamic characteristics of the bearing are analyzed using the noncircular bearing modified quasi-dynamic model. The influence of the integrated flexible support structure on the internal load distribution and the dynamic characteristics of the roller bearing are analyzed. The results indicate that with the support of a flexible squirrel-cage, the maximum contact load is decreased by 14.2%, the loading region is enlarged by 25%, the cage slide ratio is reduced by 24%, and the fatigue life is increased by more than 50%. In addition, as the ring wall thickness increased, the results increasingly approached those under a rigid assumption. View Full-Text
Keywords: rolling bearing; thin wall; flexible support; structural deformation; load distribution; fatigue life rolling bearing; thin wall; flexible support; structural deformation; load distribution; fatigue life
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mao, Y.; Wang, L.; Zhang, C. Study on the Load Distribution and Dynamic Characteristics of a Thin-Walled Integrated Squirrel-Cage Supporting Roller Bearing. Appl. Sci. 2016, 6, 415.

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