FAG bearings during operation the surface of contact friction, if the continuing friction over the type of FAG bearings capable of withstanding and too little lubrication measures the range of cases, you very likely will cause damage of bearing surface gravity, such as surface cracking. Once the surface has been cracked, so not hard to promise it may extend to the bearing, then the consequences will be even more serious.
FAG bearing surfaces even a hairline crack hungry, with continuing friction of rotation, will make it more serious. Crack surface in the first case of little depth, continue to wage of excessive fatigue, it will be with this depth is deeper, which formed the Commission, so there will be potholes on the surface, there will be consequences of noise.
Crack once extending from the surface to the internal, it shows the type of FAG bearings life summary, so be sure to know something about all the bearings, well aware that their work time and precision, to guarantee lubricant supply and demand during the operation.