BISOPE series
36- Vibration problems of sleeve bearings (journal bearings, metal
bearings)-3-excessive tolerance
--------------------------------------------------------------------------------------------------------------------------------------
Among the defects of the journal bearing, if the
tolerance between the bearing and the shaft is large or the margin is large, it
is not very different from the mechanical looseness phenomenon of vibration
diagnosis. Since the bearing is not subjected to strong oil pressure, it is
regularly cured at a frequency related to the number of revolutions. In
addition, when most of the relaxation occurs, the space between the bearing
and the shaft is large, so it is not related to the pulsation of oil (Whirl),
and in gradually severe cases, it is naturally accompanied by friction (Rub). Therefore, the procedure
of accurately measuring and assembling sleeve bearing tolerances requires deep
attention and is one of the tasks performed by highly experienced maintenance
personnel.
Excessive clearance of sleeve bearings
If the tolerance is excessive, the following vibration
frequency characteristics are obtained......................
https://blog.naver.com/vs72
All copyright korea CBM written by BISOPE , vs72@naver.com, 070-4388-0415, www.kCBM.kr
댓글 없음:
댓글 쓰기