There are several types of radiator bearings

The bearing form refers to the type of bearing used by the air-cooled radiator fan. In the mechanical engineering, the bearing type is very much, but in the radiator products on the use of several: the use of sliding friction sleeve bearings and the use of rolling friction ball bearings and two kinds of bearing mixed with these three. In recent years, the major radiator manufacturers in the introduction of new technologies, such as magnetic bearings, wave bearings, core bearings, Lai Fu bearings are also on the basic form of the above bearings to be improved, the operating principle is still no change The Ordinary air-cooled radiator mainly use oil bearing and ball bearings.
Oil-bearing is the use of sliding friction sleeve bearings, the use of lubricants as a lubricant and drag reduction agent, the initial use of low noise, low manufacturing costs, but this bearing wear serious, life than the ball bearing a great gap. And this kind of bearing use for a long time, due to the reasons for the oil seal (computer radiator products are not possible to use high-grade oil seal, the general is the ordinary paper seal), the oil will gradually evaporate, and dust will enter the bearing, causing fans Slow speed, noise and other issues, but also because of serious wear and tear caused by fan eccentric vibration caused by vibration. The emergence of these phenomena, or open the oil seal, or only out of the purchase of new fans.
Ball bearings change the friction of the bearing, the use of rolling friction, this way more effectively reduce the friction between the bearing surface phenomenon, effectively enhance the life of the fan bearings, and therefore the radiator life extension. The drawback is that the process is more complex, resulting in cost increases, but also bring higher work noise.