Metallurgical quality of bearing materials used to be the main factors affecting premature bearing failure. With the advances in metallurgical technologies (such as bearing steel vacuum degassing), to improve the quality of the raw materials. The quality of the raw material factor in the overall eccentric bearing failure analysis, the proportion has decreased significantly, but it is still one of the main factors bearing failure. The selection is still bearing failure analysis must consider the factors properly.
The main task of bearing failure analysis, is based on a lot of background material, analysis of data, and failure modes to identify the main factors causing bearing failure, in order to suggest improvements targeted measures, to extend the service period Spherical roller bearings to avoid bearing A sudden early failure occurred.
The bearing vibration obvious effect of the bearing failure. Peeling, for example: the indentation, corrosion, cracks, wear and tear and will be reflected in the bearing vibration detected out so through the use of special overall eccentric bearing vibration measuring device (frequency analyzer and vibrometer , etc.) to determine the measurable size of the vibration frequency distribution inferred of abnormal vibration of the specific circumstances of the measured values due to the conditions of use of the bearing or the sensor installation location and other different required in advance of each machine measured values were analyzed and compared detection criteria.
Reasons: overall eccentric bearing low precision method: selection of the delimitation of levels of precision bearings
2 reasons: different spindle bent or cabinet hole heart: repair spindle or box
3 reasons: belt too tight: Adjust the belt so elastic proper
4 reasons: poor lubrication methods: selection of delimitation grades of lubricating materials and properly cleaned
5 reasons: low quality of assembly: progressive assembly quality
6 reasons: the bearing shell lap: replace bearings and wear parts
7, the axial force is too large: cleaning, the tone positive seal ring clearance requirements between 0.2 ~ 0.3mm, correct impeller balance hole diameter and verify static equilibrium value
8, bearing damage: replace bearings


Other News:
Bearing noise troubleshooting tips
Bearing deep grinding
The Bearing the use of metal falling reasons
Bearing raceway acoustic Cause
Bearing occasions
Cold extrusion technology of bearings
How to properly select the rolling bearing lubricants
Bearing two burning failure analysis