There are several forms radiator bearings

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Bearing form refers to the shape of the air-cooled radiator fan bearing class. Type in mechanical engineering, bearing very much, but the radiator products will then categories: sliding friction sleeve bearings and rolling friction ball bearings and two bearing types combining these three. In recent years, new technologies, such as magnetic bearings, water bearing, core bearing Laifu bearing the major radiator manufacturers launch of the bearing are also to be improved from the above basic form bearing How it works or does not change . Ordinary air-cooled radiator major oil bearings and ball bearings.roll bearings
Oil bearing sliding friction sleeve bearings run, the use of oil as a lubricant and DRA, the early use of low noise, low manufacturing costs, but this serious bearing wear life than ball bearings have a big gap. And the use of such bearings over time, due to the oil seal (computer radiator products can not use the high-grade oil seals, generally is ordinary paper oil seal), lubricating oil will gradually volatile, and the dust will enter the bearing, causing the fan slower speed, the noise increases, b ut also a serious fan eccentric bearing wear lead to severe vibration. These phenomena, either to open oil seal refueling, or only out to purchase another new fan.
Change the bearing friction ball bearings, rolling friction, more effective way to reduce the friction between the bearing surface phenomenon, effectively increasing the life of the fan bearings, and thus extend the life of the radiator. Brought drawback is that the process is more complex, the cost of upgrading, it also brings higher noise.sealed bearings