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Bending stress of rolling element in elastic composite cylindrical roller bearing

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Abstract

A new structure design method of elastic composite cylindrical roller bearing is proposed, in which PTFE is embedded into a hollow cylindrical rolling element, according to the principle of creative combinations and through innovation research on cylindrical roller bearing structure. In order to systematically investigate the inner wall bending stress of the rolling element in elastic composite cylindrical roller bearing, finite element analysis on different elastic composite cylindrical rolling elements was conducted. The results show that, the bending stress of the elastic composite cylindrical rolling increases along with the increase of hollowness with the same filling material. The bending stress of the elastic composite cylindrical rolling element decreases along with the increase of the elasticity modulus of the material under the same physical dimension. Under the same load, on hollow cylindrical rolling element, the maximum bending-tensile stress values of the elastic composite cylindrical rolling element after material filling at 0° and 180° are 8.2% and 9.5%, respectively, lower than those of the deep cavity hollow cylindrical rolling element. In addition, the maximum bending-compressive stress value at 90° is decreased by 6.1%.

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Authors and Affiliations

  1. College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China

    Qi-shui Yao  (姚齐水) & De-jie Yu  (于德介)

  2. College of Mechanical Engineering, Hunan University of Technology, Zhuzhou, 412007, China

    Qi-shui Yao  (姚齐水), Wen Yang  (杨文) & Jiang-hong Yu  (余江鸿)

Authors
  1. Qi-shui Yao  (姚齐水)
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  2. Wen Yang  (杨文)
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  3. De-jie Yu  (于德介)
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  4. Jiang-hong Yu  (余江鸿)
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Corresponding author

Correspondence to Qi-shui Yao  (姚齐水).

Additional information

Foundation item: Project(51175168) supported by the National Natural Science Foundation of China; Projects(2011GK3148, 2012GK3092) supported by Science and Technology Program of Hunan Province, China

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Yao, Qs., Yang, W., Yu, Dj. et al. Bending stress of rolling element in elastic composite cylindrical roller bearing. J. Cent. South Univ. 20, 3437–3444 (2013). https://doi.org/10.1007/s11771-013-1868-1

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  • DOI: https://doi.org/10.1007/s11771-013-1868-1

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