The causes of premature failure FAG deep groove ball bearing

Cause there are many reasons for the premature failure of the FAG bearing, but the main is improper operation and maintenance, poor lubrication, pollution overload, assembling, transportation, remove during shock and impact. Pollution is often artificially, is due to factors such as disassembly tool is not clean. Pitting: it is the most typical FAG bearing failure modes, the main reason is deep groove ball bearings in handling ordinary impact and incorrect assembly, raceway causes creasing. When indentation after race, rotating roller, every impression will produce a shock, have a rolling effect on indentation, in creasing flake peeling, at the same time increasing vibration, noise increases. In addition, when there is a external load bearing and turns, not because of external vibrations will cause the indentation FAG bearing inner and outer ring rolling path, roll over time leads to production of flake, flake debris is more harmful to the bearings. To prevent these accidents, in daily work, can adopt the method of effective, eliminate the source of vibration or shock, keep good lubrication, can apply mild to deep groove ball bearings at the beginning of the carrier roller and rolling contact is good, improve the ability of earthquake, and the installation with hole not alignment, can cause the failure of the bearing. In actual work because of the bad lubrication or excessive overload work, excessive friction and heat soften bearing steel production, cause deep groove ball bearings volume expansion at the same time, mutual extrusion pressure, when reach a certain degree, FAG bearings will lock on the shaft, when the bearing temperature gap smaller, rolling element and cage stents produced by stress enough to keep the rack, with the extension of time, the cage will fracture, thus speeding up the bearing failure rate. The influence of fit clearance, clearance between shaft and the shaft hole is too big, relative movement between the two, one is with the axis of the period of transition of the wear gap is more and more big, finally lead to bearing damaged. Second, bearing produce scratch, affecting the precision of the movement, these caused the premature failure deep groove ball bearing, are against our real work, therefore, to study how to avoid premature bearing failure, prolong the service life is of great practical value.