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FAG bearing in using it to demonstrate a high level of regularity, and repeatability is very good. Normal quality bearings when used at the start, vibration and noise are small, but some scattered spectrum, amplitude is small, it may be due to some defect in the manufacturing process, such as caused by Burr on the surface.
Movement after a period of time, to maintain a certain level of vibration and noise, spectrum is single, only Yi、erbei frequency. Rare three times more than double the frequency spectrum, bearings are very stable, entered a period of stability.
Continue to run into use late, bearing vibration and noise began to increase, sometimes abnormal noise, but changes in the vibration increases more slowly, at this time, bearing kurtosis value suddenly reaches a certain value. We believe that the performance for the early failure of the bearing.
In this case, calls for the close monitoring of FAG bearings, pay close attention to the changes. Thereafter, bearing towering degrees value also began fast declined, and close to normal, and vibration and noise began significantly increases, its increased significantly began accelerated, dang vibration over vibration standard Shi (as ISO2372 standard), its bearing towering degrees value also began fast increases, dang both over vibration standard, and towering degrees value also over normal value (available towering degrees relative standard) Shi, we believes that bearing has entered advanced fault etc, needed timely overhaul device, replaced bearing.
Sweden demonstrated advanced fault features of FAG bearings to serious failure occurs (usually bearing damage such as axle, Burns, Sha spallation, Raceway, beads to wear) most of the time not exceeding one week, device capacity larger, faster speeds, shorter intervals. Therefore, practical in bearing fault diagnosis, once advanced fault feature, there should be decisive judgment bearing failure, as soon as arrangements for inspection.
Use factors mainly refer to installation and adjustment, maintenance, maintenance, repairs and other compliance with technical requirements. Depending on the bearing of the installation, use, maintenance, maintenance technical requirements, the load borne by the bearing in operation, speed, temperature, vibration, noise monitoring and checks and lubrication conditions, abnormal findings immediately find the cause to adjust, bring it back to normal.
First of all, spindle bearings spindle in operation, to fully ensure lubrication and lubricating periodically based on actual usage, not oil for a long time. So, for user enterprises should use better, more suitable spindle lubricant. New dedicated spindle oil can dramatically improve lubricity, extended oil change periods, extending the life of the spindle and bearings, also has a good anti-rust, anti-corrosion performance and so on.
Secondly, use reinforced nylon cage bearings, temperature should be below 120 ° c, no oil cooking cleaning.
In addition, the spindle maintenance method of cleaning should pay attention to prevent damage, scratch the surface of the roller. Try to clear the Sweden FAG bearing parts of residues, feet washing, suction should be used ingots of internal cleansing oil method is preferred. Should be careful to avoid dumping and to clean the rubbish accumulated residue bearing parts result in noise and bearing wear failure and so on.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NJ2207ET NSK | 35 | 35 | 23 |
| NJ2206ET NSK | 30 | 30 | 20 |