Chinese car bearing network bearing classroom: SKF bearing demonstrates very strong regularity while it uses, and repetitiveness is very good. Normal high-quality bearing SKF bearing While beginning to use, vibration and noise are smaller, but frequency spectrum is a bit in disorder, the amplitude is relatively small, it may be because of some defects in the manufacture process, for instance due to surface burr,etc..
Sports are shaken and kept certain level with the noise some time later, frequency spectrum is very single, only appear one, two times frequently. Seldom present the above frequency spectrum frequently of the triple worker, it is very steady to adjust the state of the heart ball bearing, enter the stability work one.
Continue, enter, use later stage run, SKF bearing shake with the noise beginning to increase, the different sound appears sometimes, but it is relatively slow to shake the change increasing, at this moment, bearing kurtosis value begins to reach certain number value suddenly. We think, SKF bearing is shown as the initial trouble promptly at this moment.
At this moment, require that monitors this SKF bearing tightly, keep a close eye on its change. Hereafter, bearing kurtosis value began to drop fast again, and was close to the normal value, and vibration and noise began to increase notably, it increases the range and begins to accelerate, act as and shake and exceed and shake standard time such as ISO2372 standard ,Its bearing kurtosis value begins to increase fast too, will already exceed and shake the standard, and kurtosis value exceeds the normal value can use the relative standard of the kurtosis When, we think that already entering later period, the trouble is produced to adjust the heart ball bearing, need to overhaul the apparatus in time, change SKF bearing.
SKF bearing demonstrate the intersection of trouble and characteristic to get appear serious trouble damage, embrace axle, burn, the intersection of sand and shelf, come loose, split, get away for bearing dish, pearl one are abraded etc. generally later period Time does not mostly exceed one week, the apparatus is the larger in capacity, the faster the rotational speed is, its spacing interval is the shorter. So, in adjusting the trouble of the heart ball bearing to diagnose actually, once find the trouble characteristic in later period, should judge resolutely the bearing has troubles, arrange to overhaul as soon as possible.
Use the factor to mainly mean it accords with the technical requirement whether installation adjusts, uses and maintains, safeguards and repairs etc.. According to the technical requirement that SKF bearing is installed, used, safeguarded, maintained, control and check the load, rotational speed, working temperature, vibration, noise and lubricated condition that SKF bearing bears in operation, find abnormality and look for the reason immediately, adjust, make it return to normal.
First of all, spinning the bearing of the spindle in the spindle should be fully guaranteed to lubricate during operation, it and add lubricating oil regularly at according to using,can’t oils broken for a long time. So for user’s enterprise, should select for use well, appropriate the intersection of spindle and lubricating oil. The new specialized spindle oil can be by improving lubricated performance prominently, lengthening changes oil cycle, the service life lengthening spindles and adjusting the heart ball bearing, have better rustproof, antiseptic performance,etc..
Secondly, adopt and strengthen the bearing that nylon material keeps the shelf, use the temperature to be be lower than ℃120, forbid the oil to be boiled and washed.
In addition, the spindle is maintained should pay attention to the method while washing, avoid damage, scratch the surface of rollers. Want, try hard, remove the intersection of SKF and the intersection of bearing and residue of position, should adopt, develop, release, suck spindle, it washes I to be good in oil method inside the foot. Should notice that avoids adopting the toppling over type and making and washing the rubbish to gather and remain on the bearing position, result in adjusting the question of failing etc. of producing the noise, abrasion of the heart ball bearing.
