computer fans
The Enermax Everest fan measures 120x25mm and spins at 1000RPM, moving up to 46CFM and operating as quiet as 8dBA. Features Enermax's revolutionary new
Twister bearing design for double the lifetime of standard double-ball bearing motors, other features include detachable blades for easy cleaning, and
anti-vibration rubber mounts. Comes with native 3pin connector with 4pin molex adapter supplied.
Well, there really wasn't much else I could find about this on the net.
What I did find suggested that it was magneticly stabelised and more claims that it would out last ball bearings twice over.
There was also stuff about how oil would dry out but as these didn't require oil, they would not have the problem!
So I bought a couple.
Now dear reader, feel free to skip over if you don't care a damn about PC fans, but I am always interested in new dvelopements particularly if they are meant to last for a huge length of time.
As the propella is removeable, I did so, and studied the bearing setup to see what it was all about.
Now, It's perfectly possible I've missed some majour point, but all I found was a sort of inversion of the standard sleave bearing.
I.E. the fixed motour part has the spindle sticking up purminantly fixed at the back, and the rotating fan hub has a soft plastic sleave bearing surrounded by a tube as part of the hubs molding.
At the front of the fan under the sticky label is a small magnet, and under that inside the sleave insert is a single steel ball which inherrits the magnetism from the front magnet and sticks to the top end of the shaft when the propella is attached.
So, no end play, but what about the rest?
There was certainly oil in it, possibly some kind of silicone stuff, but certainly not any different from the usual from what I could tell.
I cleaned it out, as one claim suggested it should work fine without it!
Well, within not much time, it got the wobbles just like any other sleave bearing fan. So, it definitely does require oil!
Certainly I think it's better than a bog standard sleave bearing model, but I just can't see it lasting even half as long as a duel ball bearing model, letalone twice as claimed!
I think the hype factor is pretty high on these!
Adendum,
I chickened out!
I ended up getting an antec duel ball race model that should easily out last the rest of the server!
Twister bearing design for double the lifetime of standard double-ball bearing motors, other features include detachable blades for easy cleaning, and
anti-vibration rubber mounts. Comes with native 3pin connector with 4pin molex adapter supplied.
Well, there really wasn't much else I could find about this on the net.
What I did find suggested that it was magneticly stabelised and more claims that it would out last ball bearings twice over.
There was also stuff about how oil would dry out but as these didn't require oil, they would not have the problem!
So I bought a couple.
Now dear reader, feel free to skip over if you don't care a damn about PC fans, but I am always interested in new dvelopements particularly if they are meant to last for a huge length of time.
As the propella is removeable, I did so, and studied the bearing setup to see what it was all about.
Now, It's perfectly possible I've missed some majour point, but all I found was a sort of inversion of the standard sleave bearing.
I.E. the fixed motour part has the spindle sticking up purminantly fixed at the back, and the rotating fan hub has a soft plastic sleave bearing surrounded by a tube as part of the hubs molding.
At the front of the fan under the sticky label is a small magnet, and under that inside the sleave insert is a single steel ball which inherrits the magnetism from the front magnet and sticks to the top end of the shaft when the propella is attached.
So, no end play, but what about the rest?
There was certainly oil in it, possibly some kind of silicone stuff, but certainly not any different from the usual from what I could tell.
I cleaned it out, as one claim suggested it should work fine without it!
Well, within not much time, it got the wobbles just like any other sleave bearing fan. So, it definitely does require oil!
Certainly I think it's better than a bog standard sleave bearing model, but I just can't see it lasting even half as long as a duel ball bearing model, letalone twice as claimed!
I think the hype factor is pretty high on these!
Adendum,
I chickened out!
I ended up getting an antec duel ball race model that should easily out last the rest of the server!