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Precautions for the use of cylindrical roller bearings

wallpapers News 2021-08-20
The cylindrical roller is in line contact with the raceway, and the radial load capacity is large. It is suitable for bearing heavy load and impact load and suitable for high-speed rotation.
The raceways and rolling elements of cylindrical roller bearings are geometrically shaped. After the improved design, it has a higher load-carrying capacity. The new structural design of ribs and roller end faces not only improves the axial load carrying capacity of the bearing but also improves the lubrication conditions of the contact area between the roller end face and the rib with the performance of the bearing.
Vibration aspect
In normal use, vibration is very sensitive to bearing damage, peeling, indentation, rust, cracks, wear, etc. will be reflected in the bearing vibration measurement. Therefore, by using a special bearing vibration measuring device (frequency analyzer, etc.), the magnitude of the vibration can be measured, and the specific abnormality can be inferred from the frequency distribution. The measured value is different due to the use condition of the bearing or the installation position of the sensor, so it is necessary to analyze and compare the measured value of each machine in advance to determine the judgment standard.
Temperature aspect
The use of high temperature often indicates that the cylindrical roller bearing has been in an abnormal condition. High temperature is also harmful to the lubricant of the bearing. Sometimes bearing overheating can be attributed to the lubricant of the bearing. Long-term continuous rotation of the bearing at a temperature exceeding 125°C will reduce the life of the bearing. The causes of high-temperature bearings include insufficient lubrication or excessive lubrication, impurities in the bearing raceway, excessively high limit speed, long-term overload operation of the bearing, etc.
Cylindrical roller bearings are separable bearings, which are very convenient for installation and disassembly. Cylindrical roller bearings can withstand larger radial loads and are suitable for use in high-speed running situations.
 


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