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Cylindrical roller bearings for regular equipment maintenance, operation and external parts replacement bearings were removed for inspection, required in order to determine whether this bearing parts can be used again and record usage of good and bad. Should carefully investigate and record split down the situation and appearance of FAG bearings. In order to understand and investigate remaining amount of lubricant, after the sampling, to a good wash bearings. Test results, if found bearing damage and abnormal situation, please follow identify the reasons for the phenomenon of bearing damage, develop countermeasures. In addition, test results, if there are several flaws words below, bearing it can not be used again, you need to replace the bearings.
Cylindrical roller bearings before damage can be achieved in real life by bearing wear, damage is usually not caused by a tired, but by bearing wear, erosion, seal damage and other causes. Yet no matter in laboratory tests or in actual use, can significantly seen in the same work under the premise of the appearance of the same bearing, generally speaking, a third of the FAG bearings damage due to fatigue damage, bearing Another one-third due to poor lubrication guide, the other third due to contaminants entering the bearing guide or the installation mishandled.
Cylindrical roller bearings to improve the accuracy of rotation, reducing vibration and bearing noise test studies have demonstrated improved precision bearing rotation, vibration and noise reduction were associated with deviation from circular rings significantly reduces a great relationship. This is to improve the entire bearing capacity to create good conditions. In addition, if the rolling bearing raceway for super finishing except crown, but also can improve the bearing capacity. Super finishing work greatly improved bearing performance and life, because there are so many beloved ultra-fine features and effects, so more and more bearing rings finishing of all ages.
Bearing cleaning: Remove the lower bearing overhaul, the first recorded appearance bearings, confirm the remaining amount of lubricant, lubricant sampling inspection, the wash cylindrical roller bearings. As a cleaning agent, general use gasoline, kerosene. FAG bearings maintenance and judgment: In order to determine whether the removed bearing can be used to clean the bearing after inspection. Check the raceway, the raceway, with the surface state, cage wear, bearing clearance increases and there is nothing to fall dimensional accuracy injury exception. The purpose of bearing lubrication: lubrication of rolling bearings aimed at reducing internal friction and wear, to prevent burning stick.
Cylindrical roller bearings selected and precautions when using rolling bearings Summary of selected species, type and size are varied. Of the mechanical means to perform the expected performance, choose the most suitable bearing is critical.
Cylindrical roller bearings can accommodate installation space inside the bearing installation space due to the design of the bearing shaft type by focusing on the shaft rigidity and strength, it is generally first determine the shaft, ie bearing diameter. However, there are a variety of sizes FAG bearings series and types should choose the most suitable bearing type.
Cylindrical roller bearings proper maintenance and timely maintenance, road construction machinery in order to ensure the proper functioning of an important aspect. If the bearing maintenance, maintenance and disappearance of thousands of able to work even longer; the other hand, a significant decrease bearing life, there may even be Burnt, shafts and other serious accidents. General bearing lubricant operating temperature should not exceed 50 ℃. To ensure adequate lubrication, lubrication, reliable, timely and periodically checks to petroleum, remain within the specified range. Some should be kept clean, according to the oil quality requirements promptly replaced. Under certain conditions, the bearing failure, and immediately delete it. FAG bearings failure and common methods are as follows.
Cylindrical roller bearings heat. If the lack of bearing lubricant, fuel, and check the oil is smooth, and if there are impurities in the oil, the bearings should be cleaned and replaced with new oil, clean the filter, if the Assembly is bad, the journal and bearing crooked, biased load plus the bottom bearing pad; if the bearing clearance is too small, you should re-adjust the gap.
Major oil surface friction. If the tubing plug, shallow oil groove, pipes should be cleaned and deepened tank, if the oil temperature is low, poor mobility, should replace the oil temperature, if the oil ring is rotated slowly, splash well, you should check the oil ring closure, grazing, oil is too high, put the oil standard height, if shim block the oil, check the gasket to adjust the position.
If the gap is too large FAG bearings, gaskets should be removed to adjust; if the rotating body (gears, wheels, tape) homeostasis is bad, you should check and adjust the dynamic balance, if the bearing is not stable, bearing bolts close tight shaft offset greater if the United States, coupled with the ground should pad cylindrical roller bearings, adjust the coupling mounting accuracy.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7922A5 NSK | 110 | 150 | 20 |
| 7321B NSK | 105 | 225 | 49 |