The metallurgical quality of bearing materials used to be the main factor affecting the early failure of F&Z bearing. With the improvement of metallurgical technology (such as bearing steel vacuum degassing), the quality of raw materials has been improved. Raw material quality factors in the overall eccentric bearing failure analysis of the proportion have been significantly decreased, but it is still one of the main factors affecting the failure of bearing. Whether the selection of material is still a factor that must be considered in the analysis of bearing failure.
The failure analysis of main tasks is based on the analysis of the data and the failure form of the large amount of background material, and identify the main factors causing F&Z bearing failure, so as to put forward the improvement measures, prolong the service period of spherical roller bearings, avoid unexpected early bearing failure.
Bearing on the vibration of the bearing failure effect is quite obvious. For example: peeling, indentation, rust, crack, wear will be reflected in the F&Z bearing vibration detection, so the use of monolithic eccentric bearing vibration measuring device special (frequency analyzer and vibration tester) can measure the size of the vibration can be inferred from the detailed numerical the abnormal vibration measured by use of F&Z bearing premise or sensor installation location and therefore require prior to each machine to measure the value of the analysis and comparison are determined by frequency distribution scale.
1, Reason: the overall eccentric bearing accuracy is low
Method: select the bearing with the specified accuracy grade
2, Reason: the spindle is bent or the housing hole is not concentric
Method: repair the spindle or cabinet
3, Reason: belt too tight
Method: adjust the belt so that the elastic appropriate
4, Reason: poor lubrication
Method: select the appropriate grade of lubricating materials and appropriate cleaning
5, Reason: assembly quality is low
Method: improve assembly quality
6, Reason: bearing inner shell laps
Method: replace the bearing and associated wear parts
7, Reason: too much axial force
Method: clean, adjust the gap between the sealing ring requirements 0.2 ~ 0.3mm between the impeller balance hole diameter and verify the static balance value
8, Reason: bearing damage
Method: replace the F & Z bearing