When the stainless steel bearings  is selected, the type of bearing ring bearing load is the main consideration. It is understood that the type of bearing ring bearing load is different, so the bearing coordination should be completed in different ways to ensure the normal operation of the bearing.

Usually, there are three kinds of load stainless steel bearings the bearing ring, one is fixed load, the other is the rotating load, and the other is the swing load and the indefinite load. Each load has different characteristics, requiring bearings to be matched in different ways.


The so-called fixed load is the synthetic radial load acting on the stainless steel bearings  ring, which is borne by the local area of the ring raceway and passes to the relative area of the shaft or bearing seat. It is characterized by the synthesis of radial load vectors and relative static rings. In this case, the bearing rings can be loosely matched.


The synthetic radial load acting on the bearing ring is rotated along the circle of the raceway, and the load that is subjected to each part is rotating load, and the synthetic radial load vector is rotated relative to the ring. Sometimes the direction and size of the load can not be determined exactly, the rotating load is much larger than the fixed load, and the synthetic load is still rotating load, and if the rotating load is much smaller than the fixed load, the synthetic load is swinging load.


Regardless of the rotating load or the swing load, its size and direction are constantly changing, and in the variable working state, the load of some bearing rings may be rotated when the load is possible, sometimes the fixed load, but also the oscillating load, that is, the indefinite load.


The swing load and the unsteady load should be treated in the same way as the rotary load. The loose fit will result in the damage of the mating surface, so it should be relatively tightened. The transition rings or interference fit should be chosen for the rings and shaft holes which are rotated relative to the load direction, and the heavier the load is, the greater the interference should be.