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The bearing classification for the cooling fan

What's the bearing classification for the cooling fan?

The bearing classification for the cooling fan

The cooling fan bearings are divided into: the Sleeve Bearing cooling fan and the ball bearing cooling fan.

Sleeve Bearing is the most commonly used as a cooling fan bearings. it's uses oil as a lubricant and DRA,the advantages is that low price and samll noise when you use it.The disadvantage is that the bearing is easy to wear and short lifespans,others,once the bearing used long time,lubricant inside the bearing sleeve is easy to leak out, then noise increases, and pollution and other accessories.

Ball Bearing generally use two ball bearings,Rolling friction instead of sliding friction,So less friction;Do not oil, there was no oil spill.
Its advantages are long time lifespans,Performance Anti-aging,Suitable for high fan speed; The disadvantage is high Manufacturing costs, and maximum noise.

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