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Tator Tot's Big "Quiet" 120mm & 140mm Fan Round-Up - Page 110

post #1091 of 2743
i read somewhere that a sleeve bearing fan needs periodic maintenance . What would that be ? Why would they say this about sleeve bearing , why not ball or other bearings ?
post #1092 of 2743
Quote:
Originally Posted by jerry66 View Post

i read somewhere that a sleeve bearing fan needs periodic maintenance . What would that be ? Why would they say this about sleeve bearing , why not ball or other bearings ?

Sleeve bearings are flat concentric rings, the oil that lubricated them can dry up or push out the sides. Ball bearings use grease inside of races sealed with rubber, plastic, or metal and generally do not dry out unless you damage the seals.
post #1093 of 2743
Thread Starter 
Quote:
Originally Posted by jerry66 View Post

i read somewhere that a sleeve bearing fan needs periodic maintenance . What would that be ? Why would they say this about sleeve bearing , why not ball or other bearings ?

 

As Scorpion said above me, it all has to do with the bearing design.

 

Like wise, Ehume wrote a nice guide about how to re-lubricate your sleeve bearing fans.

Rifle Bearings can also use this treatment.

 

I honestly wouldn't worry about doing this except maybe once a year or so. If you're a water cooling guy who cleans his setup once every 3 months, you could also do it then.

 

The principle is the same as your car engine though. The oil gets used & evaporates out of the bearing, so it needs replacing for continued smooth operation.

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post #1094 of 2743
Thanks , guess a bit more work to do every few months . Any brand or type oi; you can recommend ? Any synthetic oils for fans ? They've worked well in my cars and bikes over the last 30 years , might as well use in the computer
post #1095 of 2743
Thread Starter 

Singer oil, easy to get, not expensive.

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post #1096 of 2743
NF-S12A finally up on amazon! The PWM version is being sold for a ridiculous $30 though...
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post #1097 of 2743
Thanks for the heads up, I just ordered the FLX version for $22.95. It said only 1 left so hopefully I got it.

EDIT: It now says out of stock so it looks like I got the last one. Looks like the next shipment will be in on the 8th.
Edited by Tyler Dalton - 3/5/13 at 11:46pm
post #1098 of 2743
Quote:
Originally Posted by Tator Tot View Post

I'll put it this way, since I don't wanna dig out data or give spoilers.
Certain fans have the same or better static pressure, produce more air, and are a tad quieter.

That doesn't mean GT's are bad though. Since some of those fans cost $20-30 USD. For a single fan. GT's you can pick up for $15-18, so almost half the price of some of the high end fans.

GT's are not "Godly" fans. They're just a good balanced offering that most folks can use in a multiple of situations, and an easy recommendation since the build quality & product are very consistent due to their server oriented nature.

That's one thing you'll find about Nidec, Delta, Panaflo (Panasonic, NMB-Mat, Matushiita), & Sanyo Denki (San Ace) fans, they are consistent products. As these are OEMs/ODMs who primarily focus on products for the server market. High Reliability and consistent performance & build quality.
Which again, is part of the reason GT's were originally so highly regarded.

Fair enough, I definitely look forward to the testing data when you're ready to release it. At least I can say that my GTs were a good value at $11 and $12.50 a piece.
     
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post #1099 of 2743
Hi guys, I'd like a quick recommendation. I have 4 cougar vortex 140mm's on my rads at full blast. I'd like a high airflow 140mm to put on the back of the case to exhaust all the hot air and match the noise of the cougars.
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post #1100 of 2743
Thread Starter 
Quote:
Originally Posted by DBEAU View Post

Hi guys, I'd like a quick recommendation. I have 4 cougar vortex 140mm's on my rads at full blast. I'd like a high airflow 140mm to put on the back of the case to exhaust all the hot air and match the noise of the cougars.

Just get another Vortex Hyper-Spin, they're not expensive.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553004

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