Assembly And Adjustment Of Spindle Double Row Cylindrical Roller Bearings
Assembly and adjustment of spindle double row cylindrical roller bearings
PRODUCT
Bearing failure reasons of death
by：Waxing
2020-11-24
According to the inner shell, shell and roller burned out the cause of the accident 1 degree analysis.
Inner fire is the most serious, roller is a bit light, the shell was nearly unchanged.
In the elimination of the cause of the poor bearing inner size is not standard, can do the following.
Small shaft head of tolerance and shaft head is fine, in the inner ring and shaft head have obvious traces of friction.
If it is on one or both sides of the inner friction marks, there is movement of opposite bearing inner parts in contact with the bearing inner abnormal friction burn caused by heating.
2 inner shell are serious burn mark, black roller deformation, even is the general inner or outer shell tolerance smaller ambassador bearing clearance, appear even negative tolerance, caused by burn.
Or the maintenance of the bearing type selection is wrong, can choose big clearance of bearing.
3 shell badly burned, inner shell, roller had no obvious change, can observe whether there is friction.
The lateral friction marks, can say a lack of bearing housing and shaft sit fit tolerance, bearing operation is shell sliding friction caused by the abnormal.
If there is friction marks is the shell side or both sides, there is movement of opposite bearing shell parts in contact with the bearing shell anomaly caused by friction heat generating burned on a: basic knowledge of bearing of the bearing under a: nine different method of bearing lubrication!
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