Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Optimum Shrink-fit for High Speed Ball Bearing of Machine Tool

공작기계용 고속 볼베어링의 최적 끼워맞춤에 관한 연구

  • 김웅 (창원대학교 기계설계공학과) ;
  • 이춘만 (창원대학교 메카트로닉스공학부) ;
  • 황영국 (창원대학교 기계설계공학과)
  • Received : 2009.12.30
  • Accepted : 2010.07.07
  • Published : 2010.09.01
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Abstract

The spindle is the main component in machine tools. To develop high speed machine tools, a lot of studies have been carried out for high speed spindle. Bearing is very important part in spindle. The bearing clearance is influenced by shrink fit and thermal expansion during operation. The designer must take into account the reduction of shrink fits. The aims of this study are to grasp the shrink fits and behavior of a bearing which is a deeply connected with fatigue life of bearing and performance of spindle through FEM(Finite Element Method). This paper proposed optimum value of shrink fit considering deformation of spindle and stress of fitting area using design of experiments. Thus, the proposed formula can be used to obtain bearing internal clearance.

Keywords

References

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