Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2002.11b
- /
- Pages.369-374
- /
- 2002
- /
- 1598-2548(pISSN)
NRRO analysis of HDD spindle ball bearings using the measured geometric imperfection
실측형상오차를 이용한 HDD 스핀들용 볼베어링의 NRRO 해석
- Published : 2002.11.01
Abstract
This paper presents theoretical analysis of the NRRO(non-repeatable run-out) for a ball bearing with geometric imperfection. The 3DOF dynamic analysis of a ball bearing using the Newton-Raphson method is performed to calculate the displacement of shaft center. Frequency and magnitude characteristics of radial and axial vibrations are investigated. The ball form errors of the ball, the inner race, and the outer race in a HDD spindle ball bearing are precisely measured. NRRO of a ball bearing is analyzed by using the measured waviness data. It is concluded that dominant components of radial vibrations are