Correct installation and adjustment of low noise NTN bearing should pay attention to use five points

All know NTN import bearings belong to precision parts, when use requires a fairly cautious attitude, so is the use of the high performance bearing, if use undeserved, also cannot achieve the expected performance effect, and easy to make imports NTN bearing damage. Most of the bearing smoke bad for many reasons - — Than previously estimated load, the effective sealing, with the tight is too small, as a result of NTN import bearings clearance, etc. Any of these factors factors there is its special damage forms and will leave a special signs of deterioration. Examine the damaged shaft bearing, therefore, in most cases can find its possible causes, generally speaking, a third of the NTN import bearings damage resulting from the fatigue damage, a third of the other resulting from poor lubrication, a third of the other resulting from pollutants into the bearing improper handling or installation. So, we speak of is how to protect it, prolong the service life of it, who is not willing to let NTN import bearings, wear-resisting durable, unless you have a nerve problem ( Ha ha) , the use of the bearing should be paid attention to the following: 1, low noise, NTN bearing installation and adjustment also can imitate grouping method of long life bearings, makes the interference fit the size is consistent, NTN bearing clearance is relatively consistent, and hope to cooperate with interference within may take smaller values, to ensure the deformation of NTN bearing raceway is small, and rolling body caused by noise. 2, clearance on the relationship between the noise is very large, ideally when NTN bearing is in running state, the highest temperature clearance value is zero. Judgment methods of clearance is too large, stationary state make 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 NTN 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, 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, but for NTN bearing's outer ring by using elastic constant pressure preload.