The bearings running track and the load  

                          
                         
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                    A rotation, bearing inner ring and outer ring raceway surface, due to contact with the rolling scrolling, and running track to the dark side, the running track of the raceway surface does not belong to the anomaly, which can be found in the load conditions, so remove the bearing case, please pay strict attention and observation of raceway surface operation trajectory.
If you look closely at the track, it will learn that only bear radial load, axial load, bearing the load torque, or extreme rigidity is not equal in the bearing box. You can check whether the bearing with the unexpected load and installation error is too large, and become the cause of damage of bearing for clues. A deep groove ball bearing in the locus of the load under the conditions of production of different.
(a) is running track quantity can bear radial load of the inner ring rotates the ordinary.
(c) ~ (H) trajectory is shown to have a bad effect on the bearing, mostly short service life.
Track roller bearings
(I) of cylindrical roller bearing used in the inner rotating load the correct and the outer ring orbit radial load.
(J) is the inner and outer rings relative tilt, shaft deflection of the running track, the running track of the raceway surface, in the longitudinal produce shading at the exit load ring, orbit is tilted, double row tapered roller bearing inner ring rotation.
(K) represents a running track only burdens radial load of outer ring. L is expressed only under axial loading at the track. In the inner and outer rings tilted relative big bear radial load situation, its trajectory deviation in two columns of rail surface 180.