sleeve, ball bearing, and brushless?

[NewCompGeek]

getting some case fans and what is the difference?

 

[krakken]

Ball Bearings last a LOT longer, more reliable and are quieter.
Sleeve bearings are easier to make and break down more.

 

[NewCompGeek]

what about brushless?

 

[krakken]

good point. I don't know about brushless.

 

[krakken]

But I know that ball bearing is for sure the way to go.

 

[gogeeta13]

All muffin fans are brushless, you cant put a brush motor in a computer, too much interfearance(sp?)

 

[NewCompGeek]

any good sites that sell fans for cheap?

 

[Time2Kill]

<< any good sites that sell fans for cheap? >>



www.mpja.com
www.bgmicro.com
www.allstarelectronics.com

 

[Jen]

couple more is

jameco.com
allelectronics.com


ball bearing is the way to go........


Jen

 

[Jeff7]

Brushless fans are pretty much standard.
Basically, brushless refers to the way that the moving motor gets power from the wires.
Ball and sleeve refer to the bearings themselves.

You can get brushless ball or sleeve bearing fans. So basically, the brushless is usually standard in fans made in the past few years.

Don't get sleeve bearing fans. Ball bearing are good; another good one is called hydro-wave bearing. It's sort of like a sleeve bearing, but with several enhancements that make them as reliable as ball bearing fans. I have some 120mm Panaflo fans that use hydro-wave bearings. Those things are powerful, but very quiet.

 

[NewCompGeek]

whats different between ac and dc case fans?

 

[RealGun]

OK there are no AC case fans made that I know of.
All power inside the system is DC courtesy of the Powersupply therefore, all case fans are DC and most are at 12VDC.
I say most because some are at 7VDC and 5VDC depending on whose fan it is and how it was hooked up.

Ball bearing fans are slightly louder than sleeve bearing fans due to noise of the rotating balls. :Q

 

[Becks2k]

ball is louder than sleeve... and who cares about 70000hours(ball) vs 40000(sleeve)?

panaflo has their sleeve that last a long time, so does papst

 

[Jeff7]

AC fans put out a lot more ElectroMagnetic Interference than DC fans - that can cause data transmission problems in the computer, and it'll make your monitor look all funny.