Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
권호 표지

Clearance and preload effects on NRRO of miniaturc ball bearings with waviness

  • Kim, Y.C. (Rotordynamic Group, Korea Institute of Machinery and Materials) ;
  • Choi, S.K. (Rotordynamic Group, Korea Institute of Machinery and Materials) ;
  • Yoon, K.C. (R & D Center, FAG Hanwha Bearings Corp.)
  • Published : 2002.10.21
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Abstract

This paper presents theoretical analysis of the NRRO(the non-repeatable run-out) for a ball bearing with geometric imperfection. This imperfection contains ball size error, ball waviness, outer race waviness and inner race waviness. The 3D dynamic analysis of a ball bearing using the Newton-Raphson method is performed to calculate the displacement of shaft center. The radial and axial NRRO are simulated, and preload and clearance effects are investigated. Preload and clearance have significant effects on radial and axial NRRO of for miniature ball bearings.

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