Abnormal operation of NSK clutch bearings

wallpapers Low Carbon 2020-09-27
Normally, the clutch bearings will not be excited, but if excitation occurs, the condition must be checked. Causes and emergency measures of certain failures during the use of NSK bearings:
 
1. The rolling sound of the bearings
Use the size and sound quality of the audio equipment to check the operation of the NSK bearings. Even if the clutch bearing is slightly peeled off and other damages, abnormal tones and sounds produced by irregular measuring equipment will be distinguished from sound measurement results.
 
2. Bearing vibration
NSK bearing vibration is very sensitive to bearing damage, such as peeling, indentation, rust, cracking, abrasion, etc. will be reflected in the bearing vibration measurement. Therefore, the amplitude of vibration can be measured by using a special bearing vibration measurement (frequency analyzer, etc.) , The frequency analysis can be inferred from abnormal conditions. The measured value of the sensor position used or installed under the bearing condition is different, so each machine needs to analyze and compare the predetermined standard measurement value.
 
3. Bearing temperature
The temperature of the bearing can be inferred, usually the temperature outside the NSK bearing chamber. It is more appropriate if the hole can be used to directly measure the temperature of the outer ring of the bearing. Under normal circumstances, the bearing temperature will rise for 1-2 hours and slowly reach a steady state. The normal temperature of the machine changes with the bearing's heat capacity, large heat capacity, speed and load changes. If the lubricated clutch bearing is operated during inspection and troubleshooting, please install appropriate parts, the bearing temperature will suddenly rise, and the operation will stop when abnormally high temperature occurs, and take necessary precautions.


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