The bearing body and the inner and outer race raceways are subjected to periodic fluctuating loads, resulting in periodic contact stress. When the number of stress cycles reaches a certain value, fatigue spalling occurs on the working surface of the body or inner and outer race raceways.
Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
If the load of IKO bearing is too large, this fatigue will be exacerbated. In addition, improper bearing installation and shaft bending will also produce raceway spalling.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
The fatigue spalling of bearing raceway will reduce the operation accuracy of shaft and cause vibration and noise of mechanism.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
2. Bearing burns
The burned IKO bearing has a return fire color on its raceway and body. The causes of burns are generally insufficient lubrication, unqualified or deteriorated lubricating oil quality, and too tight bearing assembly.
3. Plastic deformation
Uneven pits appear on the contact surface between the raceway and the roller of the bearing, indicating that the bearing has plastic deformation. The reason is that under the action of large static load or impact load, the local stress on the working surface of the bearing exceeds the yield limit of the material, which generally occurs on IKO bearings rotating at low speed.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
4. Cracks on bearing race
The reasons for the cracks of the bearing race may be the tight fit of the bearing, the looseness of the foreign or inner ring of the bearing, the deformation of the containing parts of the bearing, the poor surface processing of the installed bearing, etc.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
5. Broken cage
The reasons are insufficient lubrication, broken body, seat ring skew, etc.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
6. The metal of the cage is adhered to the body
The possible cause is that the body is stuck in the cage or the lubrication is insufficient.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
7. The race is severely worn
The service life of any IKO bearing depends largely on its acceptance for maintenance and service. This is especially true in industrial applications, where working conditions are often poor, loads are heavy, and dust and pollution are common.
Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
First of all, the reasonable design and advanced nature of the structure will lead to longer bearing life. The manufacturing of bearings generally goes through multiple processing processes such as forging, heat treatment, turning, grinding and assembly. The rationality, advanced nature and stability of all the processing technologies will also affect the life of IKO bearings.
Among them, the heat treatment and grinding processes that affect the quality of finished bearings are often more directly related to the failure of bearings. In recent years, the research on the metamorphic layer of bearing working surface shows that the grinding process is closely related to its surface quality.
Then, the main reason of bearing failure analysis is to find out the main factors causing bearing failure according to a large number of background materials, analysis data and failure forms, so as to put forward targeted improvement measures and prolong the service life of IKO bearing to avoid sudden early failure.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
The metallurgical quality of bearing materials was once the main factor affecting the early failure of rolling bearings. With the progress of Metallurgical Technology (such as vacuum degassing of bearing steel), the quality of raw materials has been improved.
The proportion of raw material quality factor in bearing failure analysis has decreased significantly, but it is still the main influence of bearing failure. Whether the material selection is considered in IKO bearing failure analysis.Analysis on the Influence of IKO Bearing Fault and Damage on Its Use
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