Is your fan silent? Experts explain the difference between 6 big fan bearings

The development of radiators has been accompanied by two major themes: heat dissipation and mute. To improve the heat dissipation performance, the easiest way is to increase the speed of the fan. When the speed of the fan increases, the noise will also increase. At this time, the noise comes from two aspects. On the one hand, it is the whirring of the air cutting when the fan is running, and on the other hand, it is the sound generated by the friction of the fan's mechanical equipment. This sound is emitted by the bearing. Some radiators of poor quality often result in poor use of the fan. If you buy that product, it may not take long before you can enjoy the terrifying noise caused by the bearing.

From this, we can see how important the bearing, which is an important part of the fan, is to our radiator. The following fan bearings are more common in the products on the market. Let's take a look:

1. Sleeve Bearing

Sleeve Bearing: This type of bearing can be said to be the older bearing technology on the market, but because of its low cost and easy implementation in technology, many products including well-known brands are still in use, and its advantages It is quiet, low noise and cheap in the initial use; however, in the later stage, due to the volatilization of internal oil and the ingress of dust, it will cause serious wear on the bearing, which will slow down the speed and increase the noise. The average life span is only 8000~15000 hours.

2, Rifle Bearing

RifleBearing: RifleBearing technology developed by CoolerMaster uses a shaft core with reverse spiral grooves and oil baffle grooves. When the fan is running, oil will form a reverse flow to avoid oil loss. The modified type of oil-impregnated bearings, Laifu Bearing effectively improves the service life of the bearings. In terms of cost, there is not much improvement compared with oil-impregnated bearings. It can be said to be a good economical solution among low-end products.

3, HYDRAULIC Bearing

HYDRAULICBearing: The HYDRAULICBearing technology introduced by AVC utilizes magnetic support for levitation, coupled with special oil film lubrication, which effectively solves the contradiction between the long life of the fan and low noise.

4, NACOOL Bearing

Nano bearing NACOO LBearing: Introduced by FOXCONN, a new type of bearing material made of nanocomposite materials has good performance in high temperature resistance and wear resistance. This kind of bearing can effectively improve the wear resistance of fan bearings. And it will not be affected too much when used in a complex environment, and the service life is increased to more than 120,000 to 150,000 hours compared with ordinary bearings.

5, BALL Bearing

Ball Bearings: Compared with oil-impregnated bearings, ball bearings change the friction method of the bearing. This method more effectively reduces the friction between the bearing surfaces and effectively improves the service life of the fan bearing. Extend the service life of the radiator. The disadvantage is that the process is more complicated, which leads to higher costs and higher operating noise.

6, dual ball bearing DUALBALL Bearing

DUALBALLBearing: Ball bearings also include dual ball bearings. Compared with single ball bearings, the service life of dual ball bearings can reach more than 50,000 hours. The stability is very good, but the result is higher Working noise and manufacturing costs.

There are different differences between the radiator products using these bearing technologies on the market. The simplest is the difference in price. Understanding these differences can help us decide according to our needs when choosing a radiator. At the same time, it also avoids that some merchants are shoddy, so that they have spent the wrong money and cannot achieve the results they want.