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Time：2022-03-14Views：0
Commonly used bearings for cooling fans are: ball bearings and oil-impregnated bearings.
Oil-impregnated bearings: Sleeve Bearings are sleeve bearings that use sliding friction and use lubricating oil as lubricants and drag reducing agents. It can be said that it is the most common bearing technology on the market. Due to its low cost and simple manufacturing, many products, including well-known brands, are still in use. Its advantages are quiet, low noise and low price during initial use.
Ball Bearing: Ball Bearing changes the friction mode of the bearing, adopts rolling friction, and there are some steel balls or steel columns between the two iron rings, supplemented by some grease lubrication. This method more effectively reduces the friction between the bearing surfaces, effectively improves the service life of the fan bearing, and thus reduces the heat generation of the radiator and prolongs the service life. The disadvantage is that the process is more complicated, resulting in increased cost and higher working noise.
The working principle of the cooling fan is realized by energy conversion. Its circuit principle is generally divided into various forms. The performance of the fan will be different depending on the circuit used.
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