Date: 2013-08-22

Master the operation rules for early detection of thrust ball bearing fault

Thrust ball bearing in the course of its use demonstrated a strong regularity and repeatability is very good. Quality SKF bearing start to use, noise and vibration are relatively small, but some scattered spectrum, has a short, probably because of some defect in the manufacturing process, such as Burr caused on the surface.
Campaign for some time, a certain degree of vibration and noise, the spectrum is very simple, only one or two octave tone. Very rare three times more than double spectrum very stable state of NSK bearing, entered a period of stability.
Continue to run the operation in late, thrust ball bearing vibration and noise starts to build, in some cases, different voices, but increases in vibration, changes more slowly this time, suddenly began to FAG bearing kurtosis value reaches a certain value. We believe that, at this time, early bearing failure.
At this point, the need to closely monitor the TIMKEN bearing, pay close attention to the changes. From then up, bearing steep degrees value began quickly declined, and near normal, and vibration and noise began explicit with increased its growth began explicit with speed up, dang vibration over vibration standard (as ISO2372 standard), its value began bearing steep degrees of fast increased, dang both are over vibration standard, and above normal (relative standard provides peak) of steep degrees value, we think INA bearing has into production late appeared fault, needs timely maintenance equipment, replaced thrust ball bearing.
Thrust ball bearing fault characteristics of late, a serious failure (usually bearing damage, such as axles, burn, sand spallation, raceways, wearing beads, etc) for over a week when equipment is bigger, faster, shorter intervals. Therefore, practical KOYO bearing fault diagnosis, once a fault is found with advanced features, is decisive to determine the bearing failure, repair as soon as possible.  

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