Computational Analysis of Bearing Screw Used in Lead Screw

리드스크루에 사용되는 베어링 스크루의 전산내구해석

  • Kim, Min-Gun (Dept. of Mechanical and Biomedical Engineering, Kangwon Nat'l Univ.) ;
  • Cho, Seok-Swoo (Dept. of Vehicle Engineering, Kangwon Nat'l Univ.) ;
  • Kim, Dong-Youl (Dept. of Mechatronics Engineering, Kangwon Nat'l Univ.) ;
  • Kim, Yo-Seb (Dept. of Mechanical and Biomedical Engineering, Kangwon Nat'l Univ.)
  • 김민건 (강원대학교 기계의용공학과) ;
  • 조석수 (강원대학교 자동차공학과) ;
  • 김동열 (강원대학교 메카트로닉스공학과) ;
  • 김요셉 (강원대학교 대학원 기계의용공학과)
  • Received : 2011.06.21
  • Accepted : 2011.10.10
  • Published : 2011.12.01


In order to assess the stiffness of bearing screw used for lead screw, finite element analysis on stress and fatigue life of bearing screw has been performed. Based on these analysis, fatigue life dominant model of bearing screw was proposed. This improved model introduces a fillet to release the concentrated stress generated in the vicinity of bearing screw hole. This paper also considered the strength suitability when the bearing screw manufactured in W company was applied to X-ray CT.


Bearing Screw;Lead Screw;Computational Fatigue Analysis;X-Ray CT


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