The generation of bearing vibration
The generation of bearing vibration
PRODUCT
NMB bearing abnormal temperature
by：Waxing
2020-11-20
NMB bearing abnormal temperature causes such as found in the inspection of NMB bearing voice soft, uniform, stable and no longer onefold, NMB bearing temperature rise obviously, increase or cyclical phenomenon such as vibration, vibration amplitude should be based on the causes rapid analysis and judgment.
Properly handle after the NMB bearing abnormal temperature in most cases to restore, improved health, impact on the device will reduce to a minimum.
But generally NMB bearing increased due to the change of temperature, abnormal changes quickly, so what caused abnormal temperature rise?
Below we discuss together.
Engineer to make the following summary, for reference.
Reason 1: too much lubricant, countermeasures: reduce the lubricant, right amount used, select a hard grease.
Reason 2: lack of lubricant or doesn't fit, countermeasures: added lubricant, select the appropriate lubricant.
Reason 3: abnormal load, countermeasures: change to cooperate, the bearing clearance, adjust the preload, modify the shell over the shoulder position.
Reason 4: bad installation, countermeasures: improve the machining precision and installation accuracy of shaft and the shell, installation method.
Reason 5: cooperate with the creep, seal friction is too large, countermeasures: change the bearing, research cooperation, modify the shaft and the shell, change the sealing form.
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