Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

The Measurement of the Bearing Stiffness

베어링 강성 측정

  • Kim, Sang-Uk (Department of Electrical Information, Inha Technical College) ;
  • Kim, Jin-Hwan (Department of Electrical Information, Inha Technical College) ;
  • Kim, Yong-Geun (Department of Electrical Information, Inha Technical College) ;
  • Kim, Bo-Youl (Department of Electrical Information, Inha Technical College) ;
  • Kim, Young-Bong (Department of Electrical Information, Inha Technical College)
  • 김상욱 (인하공업전문대학 전기정보과) ;
  • 김진환 (인하공업전문대학 전기정보과) ;
  • 이용근 (인하공업전문대학 전기정보과) ;
  • 김보열 (인하공업전문대학 전기정보과) ;
  • 김영봉 (인하공업전문대학 전기정보과)
  • Published : 2006.10.20
Download PDF
⟨ Previous Next ⟩

Abstract

This paper is presented for the measurement of the bearing stiffness for the spindle motors. BLDC Spindle Motors for the Hard Disk Drive are used by several kinds of the bearings, such as ball bearing, fluid dynamic bearing, and aero dynamic bearing. The spindle motors are attached the platters to read and write the data. Because the platter rotates at high end speed with the load and can be shocked from a suddenly moving, the bearing needs the rated stiffness with the pressure. By the way, it has not been realized to measure the real stiffness for each bearing types. In this paper, we proposed the method of measuring the stiffness for the bearings by using the magnet force. Experimental results show the performance to measure the bearing stiffness of the BLDC spindle motors for an HDD.

Keywords