The fan bearing classification

Bearing form refers to the air-cooled radiator fan used bearing type. On mechanical engineering, Bearing type very much, but on the radiator products Bearing form according to the basic principle of using classification is then three: using the sliding friction Sleeve Bearing (Sleeve Bearing) and the use of rolling friction of Ball Bearing, Ball Bearing) and two kinds of Bearing form mixture of the three. In recent years the radiator manufacturer in bearing new technologies, such as magnetic bearing, bearing fluid protection system, hydraulic KOYO 6205-RS Bearing Construction, nano ceramic bearing and so on are also improve on these basic forms of bearing, basic working principle or no change.
Oil-retaining Bearing, Sleeve Bearing) is the use of sliding friction Sleeve Bearing, use oil as a lubricant and drag reduction agent, early use running low noise, also lower the manufacturing cost, but the Bearing wear serious, life has a great gap between the ball Bearing. And this kind of bearing with long time, because of the reason of the oil seal (computer radiator products can't use high-grade oil seal, oil seal is the ordinary paper), lubricating oil will gradually evaporate, and dust will enter the bearing, leading to a fan speed slow, increase the problems such as noise, serious still can because the bearing wear caused fan eccentric caused violent vibration. Appear the phenomenon, open the oil seal oil, or only new fan out another purchase.

Single Ball Bearing (1 + 1 Sleeve Ball Bearing) is the improvement on the traditional oil Bearing, in the form of sliding friction and rolling friction, match with a Ball Bearing is actually a dual Ball Bearing oil Bearing way to reduce the cost, it is between the rotor and stator with Ball Bearing lubrication, and lubricating oil. It overcomes the oil bearing life is short, unstable, and rising costs are extremely limited. Single ball bearing absorb advantages of oil bearing and double ball bearing will increase the service life of bearing in 40000 hours, the disadvantage is that after adding ball, running noise is increased, but still less than double ball bearing.

Double Ball Bearing (2 Ball Bearing) belongs to more high-grade Bearing, in the form of rolling friction, adopted two Ball Bearing, Bearing of several small steel Ball around the axis, when fan page or axis of rotation, steel Ball is followed. Because is a sphere, so less friction, and there is no oil leakage problems. Double ball bearing has the advantage of long service life, about 50000-100000 hours; Anti-aging performance is good, suitable for high speed of the fan. Double ball bearing fault is the manufacturing cost is high, and at the same speed level of noise is the largest. Double ball bearing and hydraulic bearing has good sealing ability, especially the double ball bearing. Double ball bearing is the embedded in the fan, rotational part have no direct contact with the outside world. In the environment of the seal, bearing a relatively stable working environment. So almost all of the large diameter fan 5000 turn level using double ball bearing. The hydraulic oil bearing due to possess unique back type, so the lubricating oil leak less likely.

Rifle Bearing (Rifle Bearing) technology on behalf of the manufacturer is CoolerMaster, CoolerMaster currently has most of its traditional oil Bearing fan to upgrade to the new Bearing. Million-member as the improvement of traditional oil bearing, bearing adopts hollow high wear-resisting material, oil bearing, reduce the friction between bearing and shaft core, rifles with reverse spiral groove bearings and gear oil groove of the shaft core, oil will form a reverse migration when the fan is running, so as to avoid loss of oil, thus improve the bearing life. Rifle bearing fan by adopting the above structure and parts, oil and oil ability improved, and reduce the noise.

Bearing fluid protection system (Hypro Bearing) its name derives from HY (Hydrodynamic wave, fluid mechanics wave) PRO (Oil protection system, Oil protection system), is a well-known design of radiator and fan manufacturers ADDA patent product, is also based on the traditional Oil Bearing for a number of improvements. Protection system bearing and hydraulic fluid bearing the very same goal, two design respectively adopted some original improvement measures, but the essence of circulation oil system, all aspects of the performance also. Usually product life of up to 50000 hours.

Hydraulic Bearing (Hydraulic Bearing) is invented by AVC technology, is modified on the basis of oil Bearing. Hydraulic bearing has greater than oil bearing oil storage space, and has a unique ring type oil supply loop back. Hydraulic bearing fan had significantly lower operating noise, service life is also very long, can reach 40000 hours. Hydraulic bearing still in essence is a kind of oil bearing. But this kind of improved, greatly extended the life than ordinary oil seal bearing, and inherited the oil-retaining bearing, the advantages of low noise operation. The hydraulic bearing has got application in AVC radiator, but not all AVC radiator adopt hydraulic bearing fan.

Vaporization Bearing (VAPO Bearing) is modified by Sunon the maglev technology, is the oil Bearing bushing to strengthen hardness, and the use of special material, its inner surface is through special processing, thus overcomes the drawback of oil Bearing not resistant to high temperature, and magnetic levitation technology cooperate again, will greatly prolong the service life.

Magnetic suspension Bearing, Magnetic Bearing) motor has maglev (Magnetic System, MS) design, the lines of Magnetic induction and the maglev line, vertical shaft core and maglev lines are parallel, so the weight of the rotor is fixed on the orbit, using almost no load in the opposite maglev axial line direction top bracing, form the whole rotor suspended, in a fixed orbit operation. Maglev in fact is a kind of auxiliary function, therefore, is not an independent bearing form, the application must also cooperate with other forms of bearing, such as magnetic levitation + ball bearing, magnetic levitation, oil bearing, magnetic levitation + vaporizing bearing, and so on. The technology has not been the European and American countries.

NANO Ceramic Bearing (NANO Ceramic Bearing, NCB) still in essence is a kind of oil Bearing, was first introduced by foxconn in their products. Traditional oil bearing fan in use process more serious wear and tear, and when used for a long time the reliability is low. Nano bearing effectively overcome the problem: ceramic bearing technology adopted special macromolecule material with special additives to fully mix, bearing the core we use special dioxide comprehensive materials, made use of punching die and sintering process, crystal particles by past 60 dropped to 0.3 um um, solid, smooth, wear-resisting and so on characteristics. Nano ceramic bearing has a strong ability of resistance to high temperature, less volatile, which greatly extend the service life of the fan, the nature of the nano bearing similar to ceramic, as it is smooth grinding. According to the test, using nanometer ceramic bearing of fan average service life of 150000 hours or more. The technology is not the real nano technology, the use of materials is not the real nanoscale materials, merely adopted nano words like to attract attention.