INA deep groove ball bearing installation failure prevention

INA bearings after installation, in order to check whether installed correctly, check for running. Small mechanical can rotate with the hand, to confirm whether to rotate smoothly. Check project has caused by foreign bodies, scars, creasing seized up, due to bad installation, installation of seat processing bad moment is not stable, because the clearance is too small, installation error, seal friction caused by the torque is too big, and so on. If there is no abnormal can start power operation. Dynamic operation, from the beginning of the no-load speed, slowly up to the rated operating conditions. Test run to check the items, whether there is abnormal sound, deep groove ball bearing temperature, lubricant leakage or discoloration, and so on. If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection. 1, installation and adjustment of low noise bearing can also emulate grouping method of long life bearings, makes the interference fit the size is consistent, INA bearing clearance is relatively consistent, and hope to cooperate with interference within may take smaller values, to ensure the deformation of bearing raceway is small, and rolling body caused by noise. 2, clearance on the relationship between the noise is very large, ideally when deep groove ball bearing is in running state, the highest temperature clearance value is zero. Judgment methods of clearance is too large, stationary state INA bearing axial displacement, the extent of the reciprocating is bigger, the big and heavy turbidity of a noise during operation. 3, if the hate sharp whistlers, shows deep groove ball bearing preload is too big, preloaded, bearing a large prestressing degree should have to relax. If the clearance is too large, can make the two bearing ring along the axial relative offset slightly: both reduced clearance, and increase the axial rigidity, INA bearing noise can be reduced. 4, rolling body around would not bite into the no-load area or channeling, that will not only increase the noise can also cause wear and tear, and the small clearance and large axial stiffness can eliminate the phenomenon. But cannot too small clearance, lest cause high temperature and shorten the life. 5, sometimes because of the host operating temperature range is very large, or the size of the shaft and the bearing hole discreteness is very big, can't get a setting on a proper clearance, in this case, can the INA bearing's outer ring by using elastic constant pressure preload.