The fan bearing is a type of bearing, which refers to the type of bearing used by the fan of the air-cooled radiator.
In mechanical engineering, there are many types of bearings, but there are only a few types used in radiator products: sleeve bearings using sliding friction, ball bearings using rolling friction, and a mixture of the two types of bearings. In recent years, major radiator manufacturers have introduced new technologies for bearings, such as magnetic bearings, water wave bearings, magnetic core bearings, and hinge bearings. . Ordinary air-cooled radiators mainly use oil-impregnated bearings and ball bearings.
Oil-impregnated bearings are sleeve bearings that use sliding friction. Lubricating oil is used as a lubricant and a drag reducer. In the initial use, the operating noise is low and the manufacturing cost is also low. However, this kind of bearing wears seriously, and its service life is far behind that of ball bearings. Moreover, if this kind of bearing is used for a long time, due to the reason of the oil seal (it is impossible to use high-grade oil seal for computer radiator products, generally it is ordinary paper oil seal), the lubricating oil will gradually volatilize, and the dust will also enter the bearing, causing the fan The speed becomes slower, the noise increases and other problems. In severe cases, the fan eccentricity caused by bearing wear will cause severe vibration. If these phenomena appear, either open the oil seal to refuel, or have to eliminate and buy a new fan.
The ball bearing changes the friction mode of the bearing, adopting rolling friction, which more effectively reduces the friction phenomenon between the bearing surfaces, effectively improves the service life of the fan bearing, and thus prolongs the service life of the radiator. The disadvantage is that the process is more complicated, which leads to an increase in cost and higher working noise.
