Imported bearing trajectory method - bearing knowledge

When imported bearing rotation, imported bearing inner ring and outer ring raceway surface with rolling body is rolling contact, as the dark side, thus orbit trajectory are attached to the raceway surface does not belong to abnormal, the change can be learned that load conditions, so when remove the imported bearing, please keep close attention and observation on the surface of the raceway. If you look closely at orbit, will know that only bear radial load, bear the axial load of big, inherit the torque load, or extreme rigid in bearing box is not equal. Can check if the bearing with accidents such as whether the load and the installation error of kingdoms, the cause of bearing damage and be investigated for clues.