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1、 Effect of vibration on NTN bearing.
In normal use, vibration is quite The Influence sensitive to the damage of NTN bearing. Peeling, indentation, corrosion, crack and wear will be reflected in the vibration measurement of NTN bearing.
Therefore, the magnitude of The Influence vibration can be measured by using a special bearing vibration meter (frequency analyzer, etc.), and the specific situation of abnormality can not be inferred through frequency division.
The measured values are different due to the service conditions of The Influence NTN bearing or the installation position of sensor, so it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.
2、 Effect of temperature on NTN bearing.
High temperature often indicates that NTN bearing has been in abnormal condition. High The Influence temperature is also harmful to the lubricant of the bearing. Sometimes NTN bearing overheating can be attributed to the lubricant of the bearing.
If the temperature of NTN bearing exceeds 125 ℃ for a long time, the bearing life will be reduced. The causes of high temperature NTN bearings include insufficient or excessive lubrication and lubricant. It contains impurities, excessive load, NTN bearing ring damage, insufficient clearance, high friction caused by oil seal, etc.
In the process of using NTN bearing, the phenomenon of The Influence temperature rise is easy to occur. When the bearing temperature rises, first judge whether there is misoperation. If it does rise, do the following:
water flow and pipeline system are normal. If the water pressure is The Influence low, the filter may be blocked and cannot be handled in time, it can be shut down for treatment. When it is confirmed that it can work, it can be put into use.
2. Check the oil pressure of the governor. If the oil pressure is low, the cooling water hydraulic valve may be closed.
3. Check whether NTN bearing has abnormal sound and whether the swing of NTN bearing is abnormal.
4. Take an oil sample to observe whether the oil color has changed, and test to see whether it has The Influence deteriorated. If the deterioration is confirmed, stop the machine and replace it with new oil.
5. Check whether the oil level of the oil gauge is normal. If not, The Influence check whether the oil drain valve of the oil tank is tightly closed. If it has been closed tightly, oil shall be added. If it is oil leakage from the sealant pad, it shall be shut down for treatment.
Vibration is very sensitive to the damage of NTN bearing. Peeling, indentation, corrosion, crack and wear will be reflected in the vibration measurement of NTN bearing.
Therefore, the vibration can be The Influence measured by using a special NTN bearing vibration meter (frequency analyzer, etc.), and the specific situation of abnormality can not be inferred through frequency division.
The measured values are different due to the service conditions of NTN bearing or the installation position of sensor, so it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.
Let’s take a look at the impact of temperature on the bearing. Using high temperature often indicates that NTN bearing has been in an abnormal condition. High temperature is also harmful to the lubricant of the bearing.
Sometimes NTN bearing overheating can be attributed to the lubricant of the bearing. If NTN is kept at a temperature higher than 125 ℃ for a long time, the bearing life will be reduced.
The causes of high temperature NTN bearings include insufficient or excessive lubrication and lubricant. It contains impurities, excessive load, NTN bearing ring damage, insufficient clearance, high friction caused by oil seal, etc.
Therefore, it is necessary to continuously monitor the temperature of NTN bearing, whether it is measuring NTN bearing itself or other important parts. If the operating conditions remain unchanged, any temperature change can indicate that a fault has occurred.
The periodic measurement of NTN bearing temperature can be aided by thermometer, such as digital thermometer, which can accurately measure the bearing temperature and display it in ℃ or Fahrenheit.
Important NTN bearing means that when it is damaged, it will cause equipment shutdown. Therefore, this kind of NTN bearing should be equipped with temperature detector.