Bearing form terms

Bearing form refers to the air-cooled radiator fan used bearing type. In 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 sliding friction sleeve bearing ( SleeveBearing) And the use of rolling friction bearing ( 滚珠轴承) 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 bearing, bearing, nano ceramic bearing and so on are also improve on these basic forms of bearing, basic working principle or no change. Oil-retaining bearing, SleeveBearing) Is the use of sliding friction sleeve bearing, using oil as a lubricant and drag reduction agent, the early use of 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 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. The single ball bearing ( 1 + 1 sleevebearing球) 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滚珠轴承) 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 ( RifleBearing) technology