Temperature rise is likely to occur during the use of NSK self-aligning ball bearings. When the temperature of the NSK self-aligning ball bearing rises, first judge whether it is wrong or not. If it does rise, it should be treated as follows:
1. Check the cooling water pressure, water flow and piping system is normal. If the water pressure is low, the filter may be clogged and cannot be disposed of in time. It can be shut down and put into use when it is confirmed that it can work.
2. The oil pressure of the governor should be checked. If the oil pressure is low, the cooling water hydraulic valve may be closed.
3. Check the imported bearings for abnormal sound and check if the swing of the NSK self-aligning ball bearing is abnormal.
4. Take an oil sample to see if there is any change in the oil color and test it to see if it has deteriorated. If deterioration is confirmed, stop replacing the new oil.
5. Check if the oil level is normal. If it is not normal, check if the oil drain valve is closed. If it is closed, it should be replenished. If the gasket is oily, it should be stopped.
Vibration damage to NSK self-aligning ball bearings can be said to be quite sensitive, and peeling, indentation, rust, cracks, wear, etc. will be reflected in the vibration measurement of NSK self-aligning ball bearings. Therefore, the magnitude of the vibration can be measured by using a special bearing vibration measuring device (frequency analyzer, etc.), and the specific situation of the abnormality cannot be inferred by the frequency division. The measured value differs depending on the conditions of use of the NSK self-aligning ball bearing or the mounting position of the sensor. Therefore, 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 effect of temperature on imported bearings. The high temperature often indicates that the NSK self-aligning ball bearing is in an abnormal condition. High temperatures are also harmful to the lubricant of the bearing. Sometimes bearing overheating can be attributed to the lubricant of the bearing. If the NSK self-aligning ball bearing rotates for more than 125 °C for a long time, it will reduce the life of the NSK self-aligning ball bearing. Causes of high temperature bearings include: insufficient lubrication or excessive lubrication, lubricants. Contains impurities, excessive load, NSK self-aligning ball bearing damage ring, insufficient clearance, and high friction caused by oil seal.
Therefore, it is necessary to continuously monitor the temperature of the NSK self-aligning ball bearing, whether it is measuring the bearing itself or other important parts. If the operating conditions are the same, any temperature change can indicate that a fault has occurred.
The periodic measurement of the temperature of the NSK self-aligning ball bearing can be performed by means of a thermometer, such as a digital thermometer, which can accurately measure the temperature of the NSK self-aligning ball bearing and display it in °C or Fahrenheit. The importance of the bearing means that when it is damaged, it will cause the equipment to stop. Therefore, it is better to install a temperature detector for such NSK self-aligning ball bearings.
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