NSK bearings failure damage judgment method of loading charge

Before import bearings completely destroyed, it provides users find enough time, do not ignore the existence of this kind of friction, it will cause a decrease in the speed of riding, make long distance energy consumption greater speed slower. If subtle for surface roughness, if there is proper thickness of lube film, the surface stress generated by the probability is quite low, which is why the choice of appropriate for the reason of engine oil for lubrication, however, if the load exceeds the oil film pressure of pu value ( The fatigue load limit value, such as high speed, high pressure shock) , the material fatigue will come sooner or later. NSK bearings data of metallurgical quality was affected imports bearing early off effect of the primary factors. Follow metallurgy skills ( For example, the bearing steel vacuum degassing, etc. ) The increase of the original data quality improvement. Original data quality elements in bearing off effect analyze the proportion of distinct decline once, but it still is one of the primary influence factors of bearing off effect. Material can be properly still are elements of a bearing off effect analysis needed to think. Imported bearing effect analysis of the primary obligation, that is, on the basis of many sets of data, analyze data and effective way, find out the formation bearing effect of the primary elements, so that puts forward improvement measures for extending bearing period of service, to prevent sudden bearing attack early off work. 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 unexpected load and installation error is too big, etc. , shall be investigated and be outside the spherical bearing hold clues to the cause of damage. Lubrication is very important, not only for imported bearing, also for all bearings. But please note that the bearing should not add too much grease. And then replace the NSK bearing lubricant. Use after xie used engine oil, engine oil lubrication bearing if possible, should be impregnated with fresh oil and let the machine in low speed rotation for a few minutes. As far as possible make the oil collecting residual pollutants, and then purging in addition to the oil. And the use of grease lubrication bearing in replacing grease, used by Joe in addition to the editor should avoid contact with cotton to any part of the spherical bearing. Because these residues fiber may wedged in between the scroll and damage, especially the application of small bearing more need to pay attention to this problem. NSK bearings is available, mainly considering bearing damage degree, mechanical properties, importance, and operating conditions, to the next overhaul period. If there are the following defects cannot be used again, new bearing must be replaced. Inner ring and outer ring, rolling element and cage on any one have crack or gap. 1, ring, rolling body fracture on any one. 2, rolling on the pavement, guard, rolling body significant card. 3, keep wear significantly significant relaxation or rivet. On page 4, raceway and rolling body rust, injury. 5, NTN bearing raceway surface, rolling body has serious indentation and mark. 6, inner ring diameter or outer diameter surface has obvious creep. 7, due to the hot color change is obvious. 8, NSK bearings of grease sealed, sealing ring or dust cover breakage is obvious.