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  "Barometric Ball Bearing" Case Fan Noise/Reliability? 
 
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john albrich Apr 14, 2012, 06:58am EDT Reply - Quote - Report Abuse
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Can anyone share their experience with any case fans that use "Barometric Ball Bearing" bearings?
(In particular, experience info on the Cooler Master "Excalibur" line of fans, but other brands (if they exist) would be welcome) Example:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103083

They promise long life (100,000 hours) PLUS lower noise (13dBA-30dBA@86CFM). I think most case fans, including dual-ball-bearing fans which I use, are typically ~36dBA or higher for ~80CFM).

Note: another nice things about the Cooler Master "Excalibur" series is you can supposedly remove the blade assembly for easy and thorough cleaning. I don't have one yet to try it.


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Dr. Peaceful Apr 18, 2012, 03:21pm EDT Reply - Quote - Report Abuse
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Edited: Apr 18, 2012, 03:35pm EDT

 
>> Re: "Barometric Ball Bearing" Case Fan Noise/Reliability?
Way too fancy for a PC case fan... ;) Good thing is, it's not too expensive to have one.

Here is an schematic diagram of the bearing from Cooler Master itself.
http://www.coolermaster.com/product.php?product_id=6634

Couldn't find much technical (read physics / aerodynamics / mechanic engineering) details regarding the bearing design. Unless you pay to read their patent. http://www.tek-chain.com/english/inn-what.htm (BTW, they may be innovative in fan technology, but not really innovative in English... LOL ;) )

The main idea is to maintain the same barometric pressure in the center of the fan, hence reduce wear and increase durability.

fred berry May 19, 2012, 03:05am EDT Reply - Quote - Report Abuse
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Edited: May 19, 2012, 03:06am EDT

 
>> Re: "Barometric Ball Bearing" Case Fan Noise/Reliability?
That's a wonderful explanation.....and the diagrammatic explanation is just enough to make things understand.




john albrich May 19, 2012, 03:29am EDT Reply - Quote - Report Abuse
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>> Re: "Barometric Ball Bearing" Case Fan Noise/Reliability?
.
I was really hoping for someone on HWA who has actually used them to provide some feedback (e.g. is the design truly superior or is it simply advertising hype?).

The theory and specs were easily found before I asked my question, but theory and specs don't tell us anything about the real-life vs. advertising hype.

At the time of my initial post I hadn't found any real-world reviews, tests, or experiences. Perhaps they were too new to the market. I was hoping to get some feedback before I committed to a purchase (they were 2X the price of some dual-ball-bearing fans that have worked will for me in the past). I ended up buying more dual-ball-bearing fans since they have performed adequately in the past.

Meats_Of_Evil May 19, 2012, 09:27pm EDT Reply - Quote - Report Abuse
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>> Re: "Barometric Ball Bearing" Case Fan Noise/Reliability?
Heck, a fan is a fan in my eyes. Except this one has: "nine massive sword-shaped blades which generate outstanding high air pressure" lol. But the main selling point to me is the removable blades for easy cleaning, I hate having to clean the blades of the fan, I never get the job fully done.

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Everything I write is Sarcasm.
john albrich May 20, 2012, 02:51am EDT Reply - Quote - Report Abuse
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>> Re: "Barometric Ball Bearing" Case Fan Noise/Reliability?
Meats_Of_Evil said:
....But the main selling point to me is the removable blades for easy cleaning, I hate having to clean the blades of the fan, I never get the job fully done.

The removable blade hub is part of the attraction, too. Although I haven't had much trouble cleaning regular fan blades using a cleaning brush for an electric shaver. A small toothbrush is ok (even better when I've cut it down to where it's only about 3 or 4mm wide), but the smaller shaver cleaning brush is easier and faster.


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