Lubricating grease in advance of the seal seal type bearing grease filling, and the filling amount of grease inside the housing, grease filling for every once in a while to supplement or replace. In addition, the multiple IKO bearings require lubrication of machinery, also use the pipe connected to the centralized supply in the lubrication of grease. Lubricating grease fill can be achieved long after a grease is not needed, and the sealing device structure is relatively simple, so widely used. Oil lubrication is relatively simple. Regular lubrication can improve the service life of miniature bearings.
Imported 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 inner and outer rings of bearings with surface wear. Because of the wear and damage the bearing shells, IKO bearings and shaft, causes the axis deviates from the correct position, the axis in high-speed motion noise. When the miniature 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 and bearing broken produces abnormal sound. After bearing wear loose, loose cage damage, would also have abnormal noise.
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 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); micro preloaded bearing; bearing race rotation on the shaft or shell; overload; bearing retainer or rolling body fragmentation.
Selection and control of the shaft and the bearing chamber tolerance: press bearing bearing should be flexible rotation not block a sense of. If there is obviously the rotation is not flexible, indicates that the axial size is too large, the tolerance to cut. Such as IKO bearing onto the shaft by hand after rotation has obvious "rustle" sense, the tolerances of the shaft may be too large or the roundness of the shaft is not good. So in the control of the shaft and housing tolerances to control the roundness, many domestic manufacturers only on tolerance control, no control of roundness.
Because the miniature bearing is a high precision products, such as improper assembly is easy to bearing raceway damage, cause damage to the bearing. Bearing assembly shall have the special mould, can not be beat, after pressing shaft when only small force, force pressure when only circle circle. The assembly requires use of a pneumatic or hydraulic, in press down to touch to the state level, if tilt will cause the bearing channel due to the stress damage, and the bearing guide ring. Many manufacturers are considered to be before the bearing problem, through our advocacy, motor factory is now aware of the main insulation paint problems. This is mainly because the acidic material insulating paint volatile out of the formation of corrosive substances in a certain temperature, humidity, IKO bearing raceway corrosion cause bearing damage. The problem can only be good choice of insulating varnish, and after drying ventilation for a period of time after the assembly.