FAG bearings under load at a very low speed (n<10/min) operation, and requires only a very short life (in this case, under the given load is equivalent to p, then the life equation is necessary to calculate a very low basic dynamic load rating c, so choose based on the life of bearings in actually running seriously when overloaded);
Bearings in the rotation, and in addition to the normal operating load, also subjected to heavy shock loads.
In these circumstances, permissible load is not depends on the material of the fag bearing fatigue, but in terms of load on permanent deformation of bearing Raceway with a scale. Role in stationary bearings, or slow swinging of load on the bearings, or impact load acting on rotating bearings, rolling pressure on flat surfaces, as well as enable Raceway to appear sunken. Roller SAG distribution may not rule on, might correspond to the location of the rolling elements evenly distributed. If, during the several rotating load is maintained, then the SAG evenly on the whole raceway. Permanent deformation of the bearing resulting in increased noise and vibration and friction. And increase internal clearance or alter parts of interaction between.
These changes will cause much damage to bearing performance, depending on the specific use of FAG bearings in requirements. Therefore, in order to meet any one of the following requirements, must ensure permanent deformation does not occur or to a very limited extent only; to that end, the chosen bearing with sufficiently high static load carrying capacity:


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