Introduction to the types of cooling fan bearings of Taiwan fan brands.electric fan direct sales

　　There are different types of cooling fans. We all know that the classification of cooling fans has a lot of basis, including the appearance to the internal structure has a very detailed classification. One of the most important things for cooling fans is cooling fan bearings, so what kind of cooling fan bearings do Taiwan fan brands have.

　　Common bearings for cooling fans are: ball bearings, oil-impregnated bearings, and magnetic suspension bearings.

　　Ball bearing

　　Ball Bearing changes the friction mode of the bearing, adopts rolling friction, and there are some steel balls or steel columns in the middle of 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.

　　Oil-impregnated bearings

　　Oil-impregnated bearings (Sleeve Bearing) are sleeve bearings that use sliding friction and use lubricating oil as a lubricant and drag reducing agent. 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.

　　Magnetic bearing

　　Magnetic Bearing (Magnetic Bearing) motor adopts Magnetic System (MS) design, which uses magnetic force to suspend the rotor in the air, so that there is no mechanical contact between the rotor and the stator. The principle is that the magnetic induction line is perpendicular to the magnetic levitation line, and the shaft core and the magnetic levitation line are parallel, so the weight of the rotor is fixed on the running track. The rotor is suspended on a fixed running track. Compared with traditional ball bearings and oil-impregnated bearings, magnetic bearings have no mechanical contact, and the rotor can run to a very high speed. It has the advantages of low mechanical wear, low energy consumption, low noise, long life, no lubrication, and no oil pollution. , especially suitable for high-speed, vacuum, ultra-clean and other special environments. In fact, magnetic levitation is only an auxiliary function, not an independent bearing form. The specific application must be matched with other bearing forms, such as magnetic levitation + ball bearing, magnetic levitation + oil bearing, magnetic levitation + vaporized bearing, etc.

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