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Eda bearings lubrication method, divided into grease lubrication and oil lubrication. In order to make the combination bearing play function very well, first of all, to choose suitable conditions, using the method of lubrication. If only consider lubrication, oil lubrication of lubrication advantage. However, lubricating grease can simplify the structure around the bearing strength, compare the advantages and disadvantages of grease lubrication and oil lubrication. Rolling bearing fault is generally of two types, one is the bearing temperature is too high, the two is a bearing noise in operation.
Rolling bearing is allowed in the work of the minor operation noise, if the sound is too loud or unusual noise or impact sound, it indicates that the bearing failure.
Causes noise rolling bearings are more complex, one is the bearing outer ring, the surface wear. Because of this wear, destroyed the fit between bearing and housing, bearing and shaft, causes the axis deviates from the correct location, the axis in high-speed motion noise. When the Eda bearing fatigue, its surface metal flake, also bearing radial clearance increases the noise. In addition, combination of insufficient lubrication of the bearing, the formation of dry friction, as well as bearing broken produces abnormal sound. After bearing wear loose, loose cage damage, would also have abnormal noise.
Bearing rolling body and the inner, outer ring raceway surface are subjected to cyclical fluctuation load, resulting in periodic changes of contact stress. When the stress cycle number reaches a certain value, will produce fatigue spalling on the rolling body or the inner, outer ring raceway surface. If the bearing load is too large, will exacerbate this fatigue. In addition, the bearing is not being installed, shaft bending, also have a raceway spalling phenomenon.
Raceway on Bearing fatigue peeling can reduce the running accuracy of the shaft, the vibration and noise mechanism.
Burn bearing raceway, the rolling body temper. Burn the reason is the general lack of lubrication, lubricating oil quality does not meet the requirements or deterioration, as well as the bearing assembly too tight.
Uneven pits and roller roller contact surface bearing, the Eda bearing plastic deformation. The reason is the effect of bearing static load or impact load, the local stress more than material yield limit of the working surface, which generally occurs on the low speed bearing rotating.
Causes of bearing ring crack may be bearing with the tight, bearing inner ring of foreign or loose, inclusive deformation element bearing surface processing, installation of bearing bad etc..
Institutional operation, installation of bearing parts to allow a certain temperature, when the hand touch body shell, should not feel hot to normal, instead it indicates that the bearing temperature is too high.
The reason is: Eda bearing high temperature lubricating oil quality does not meet the requirements or deterioration, the oil viscosity is too high; mechanism assembly tight (spaces); composite preloaded bearing; bearing race rotation on the shaft or shell; overload; bearing retainer or rolling body fragmentation.