Which fan?

[flibberdipper]

So, I know nothing about fan bearings. Or if the type even makes much of a difference in its longevity. But, I'd rather go a little overboard on researching this stuff to make sure the wrong path is not taken. So, the black bladed one has double ball bearings and the white bladed one has fluid dynamic bearings. In a computer that is on 24/7, which will last longer? Assume the fan speed is consistently 50-70% of the max speed, and the temperature around the fan will be 45-65C (which it probably will be), since this will be used on a heatsink.

 

http://www.newegg.co...N82E16835186073

 

http://www.newegg.co...N82E16835186072

[TheKDub]

I believe that fluid dynamic bearings last longer, though I might have heard wrong..

[flibberdipper]

I believe that fluid dynamic bearings last longer, though I might have heard wrong..

Glad we're on the same page then.

[Guest]

Fluid dynamic should last longer and be quieter that the other.
Here is an explanation from the man himself,

[ObscureMammal]

 

I saw this a while back, it might help

http://www.gamersnexus.net/guides/779-computer-case-fan-bearing-differences

[flibberdipper]

I saw this a while back, it might help

http://www.gamersnexus.net/guides/779-computer-case-fan-bearing-differences

That helped more than Linus. Thanks bruv.

[WoodenMarker]

What Arctic Cooling calls FDB for their PWM fans are just glorified rifle bearings. The PWM CO is better being designed for 24/7 operation with double ball bearings.

http://www.hardwaresecrets.com/article/The-Truth-About-Fluid-Dynamic-Bearing-FDB-Fans/1807