The noise of non-standard bearing manufacturing and maintenance and damage causes and measures

The noise of the non-standard bearing manufacturing and maintenance and damage causes and measures source: bearing | last updated: - 2020 08 - 28 the noise of non-standard bearing manufacturing and maintenance of non-standard bearing materials of metallurgical quality were the main factors influencing the premature failure of the non-standard bearings. Follow the metallurgical technology ( Such as non-standard vacuum degassed bearing steel, etc. ) The increase of raw material quality is improved. Raw material quality factor in non-standard bearing failure analysis share has dropped significantly, but it is still bearing failure is one of the main influence factors. Proper selection is still essential factor is a standard bearing failure analysis. Non-standard bearing failure analysis, the main task of the model is based on a lot of background material, analysis data and failure forms, find out the main factors of non-standard bearing failure, so that the improvement measures are put forward, to extend of self-aligning roller bearing of non-standard, avoid premature failure of the non-standard bearing sudden. Shanghai non-standard bearings manufacturer of non-standard bearing vibration on the failure of non-standard bearing size effect is significant. Such as peeling, indentation, rust, crack and wear will be reflected in the non-standard bearing vibration test so through the use of special non-standard bearing vibration measurement device ( Frequency analyzer and vibration meter, etc. ) Can measure the size of the vibration through the frequency distribution can be concluded that the details of the abnormal vibration measured values due to the use of non-standard bearing premise or sensor installation position and different therefore require prior to each machine measurement value judgment dimension after analysis and comparison. Non-standard bearing damage causes and measures of non-standard bearing cannot be directly observed in the operation, but through the noise, vibration, temperature, lubricant, etc can be learned about bearing abnormal condition. The representative of the bearing damage cases; There are crack, crack defect part of the gap. The reasons are as follows: the impact of the host load is too large, spindle and bearing with large amount of interference; Also have larger stripping friction causes the crack; When installation precision is bad; Improper use, With copper hammer, card into the big foreign body) Friction and crack. Action: check the conditions of use, at the same time, set the appropriate interference and check material, improve the installation and use, check the lubricant to prevent friction crack. 2, the raceway surface of the metal strip surface stripping operation. After stripping is obviously concave and convex shape. Bearing roller and reasons both inner and outer ring raceway surface under periodic pulse load, resulting in a cycle change of contact stress. When stress cycle number reach the set value, the rolling element bearings, their work within or on the surface will produce fatigue peeling off. If the bearing load is too big, can make the fatigue. In addition, the bearing installation is not straight, shaft bending, also can produce the raceway stripping phenomenon. ”