How to check the operation of spherical taper roller bearing?

The power running starts from the no-load low speed and slowly increases to the rated operation of the specified conditions. The items to be checked during the test run are whether there are abnormal sounds, changes in the temperature of the spherical taper roller bearing, leakage or discoloration of the lubricant, and the like. If an abnormality is found, stop the operation immediately, check the machine, and remove the bearing check if necessary.
spherical taper roller bearing temperature can generally be estimated based on the external temperature of the bearing housing. However, it is more accurate to directly measure the temperature of the outer ring of the spherical taper roller bearing by using the oil hole. The bearing temperature gradually rises from the start of the operation, and the temperature is usually stable after 1 to 2 hours.

If the spherical taper roller bearing is poorly installed, the temperature will rise sharply and an abnormally high temperature will occur. The reasons are such as excessive lubricant, too small bearing clearance, poor installation, excessive friction of the sealing device, and the like. In the case of high-speed rotation, the selection of the structure of the spherical taper roller bearing and the selection of the lubrication method are also the reasons.
The rotation sound of the spherical taper roller bearing is checked with a stethoscope, etc., and there are strong metal noise, abnormal sounds, irregular sounds, and the like. The reasons are poor lubrication, poor accuracy of the shaft or housing, spherical taper roller bearing damage, and foreign matter intrusion.

Common faults in spherical taper roller bearing are as follows:
1, tile surface corrosion: spectral analysis found that the concentration of non-ferrous metal elements is abnormal; there are many sub-micron wear particles of non-ferrous metal components in the iron spectrum; lubricating oil moisture exceeds the standard, acid value exceeds the standard.
2, the surface of the journal is strained: there is tempering color on the metal surface of the iron-based cutting abrasive grains or black oxide particles in the iron spectrum.
3, the surface corrosion of the journal: spectral analysis found that the iron concentration of the iron particles in the iron spectrum of many sub-micron particles in the iron spectrum exceeds the standard or the acid value exceeds the standard.

4. Surface strain: The inclusion of abrasive grains in the iron spectrum is non-ferrous.
5, fretting wear of the tile back: Spectral analysis found that the iron concentration is abnormal. There are many iron components in the sub-micron wear particle lubricating oil, water and acid value is abnormal.
Under the condition of liquid lubrication, the sliding surface is separated by the lubricating oil without direct contact, which can greatly reduce the friction loss and surface wear. The oil film also has a certain vibration absorption capacity.

ZYSL company specializes in spherical taper roller bearing for many years. All raw materials and accessories have been carefully selected to ensure a good user experience.

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