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Institutional operation, installing EDA 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 of high temperature of bearing: lubricating oil quality does not meet the requirements or deterioration, the oil viscosity is too high; mechanism assembly tight (spaces); one-way preloaded bearing; bearing race rotation on the shaft or shell; overload; bearing retainer or rolling body fragmentation.
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. Due to the wear, destroyed the fit between bearing and housing, a one-way 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, 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, also can produce abnormal sound of bearing damage.

Rolling bearing inspection is disassembled, can determine the fault and damage causes of one-way bearing according to the damage of bearing.
Constant pressure pretightening force is the so-called use coil springs, disc springs, given the appropriate preparation method of bearing. When in use, even if the changes in the relative position of bearing pre load, method. What types of seal bearing in use? It is even, the change of the relative position, pre load can also maintain a certain.
The bearing pre load line pressure constant preload, one-way bearing pre load spring stiffness rigidity is usually very small, so compared to deflection spring approximately parallel to the horizontal axis, and, therefore, the preset pressure monomer EDA bearing load applied rigidity and pretreatment
Axial load bearing rigid monomers approximately equal. Pre load, positioning the bearings and bearing a relatively rigid monomer pressure pretightening force.
Imported bearing raceway acoustic raceway and its control method is when the bearing operation, rolling rolling smooth continuous sound of the raceway surface, is a basic sound all rolling bearings are unique to happen. Bearings generally sound is rolling road sound with other sounds. Ball bearing raceway is irregular, frequencies above 1000Hz, the frequency rate does not change with the speed, but the overall sound pressure level increases with acceleration of the speed. Raceway bearing large, the raceway acoustic sound pressure level decreases with the increase in viscosity of the rolling bearing; but say small, the sound pressure level in the viscosity increases to about 20mm2/s above, by a reduction to increase. The bearing seat more rigid, rolling road sound of a sound pressure level is low. Such as the radial clearance is too small, rolling road sound of a sound pressure level and frequency with reduced radial clearance and increased dramatically