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Thread: Hydraulic bearing

  1. #11
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    Quote Originally Posted by Tator Tot View Post
    Are you talking about AVC fans specifically, or fans in general?

    On the open consumer market, Hydraulic Bearing or Hydro Dynamic Bearing is really a crapshoot on what you're going to get. It's even worse now after the RGB craze and the number of rebrands coming out of China that don't even list their bearing type most of the time.

    I was referring to a General Fancase that's come with Hydraulic bearing in specifications,like these :

    http://www.idcooling.com/Product/det...e/SF-12025-RGB (opened and it was a rifles bearing)

    Some powersupply advertising Thier fan as Hydraulic bearing either.

    https://www.gigabyte.com/Power-Supply/Power-Supply , here the review
    https://ru.gecid.com/power/ ( Yate Loon D12SH).

    And here the last one I've opened 1 hours ago.
    https://cdn.discordapp.com/attachmen...1/DSC_0267.JPG ( that circle surrounding is magnetic)

    All iam trying to say is , based on the amount of fans I've been opening (those fan I referred above), most of them ended up to be Rifle bearing. And you're right , pretty much can't tell which one you'll get without opening them and it's confusing.

  2. #12
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    Quote Originally Posted by Ave_Votsira View Post
    That's one weird thing.

    Majority of them I see are Rifles Bearing. While some are Sleeve and some are hydro dynamic.

    Here one of hydraulic I've opened lately https://cdn.discordapp.com/attachmen...1/DSC_0256.JPG

    In order to qualify as a rifle bearing I assume the grooves must be helical?

  3. #13
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    Quote Originally Posted by ashiekh View Post
    In order to qualify as a rifle bearing I assume the grooves must be helical?
    On the top and bottom, yes. Hard to see in that picture, but it looks like those might be helical groves on top.

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    ashiekh (07-09-2019)

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    I think you are right.

    I've always wondered if a large wad of porous material might be enough for a long life fan with a lot of oil being held in the wad.

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    Quote Originally Posted by ashiekh View Post
    I think you are right.

    I've always wondered if a large wad of porous material might be enough for a long life fan with a lot of oil being held in the wad.
    Are we going back to that "sintered bearing" conversation we had this time last year?

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    Oops

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    Jon Gerow (07-09-2019)

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    Here is a list of bearing names from fan manufacturers for their upgraded sleeve bearing fans:

    Hydraulic Bearing AVC

    Hypro Bearing ADDA

    Rifle Bearing Magic (Protechnic)

    Magnetic Sunon

    Vapo Bearing Sunon

    HYB Yate Loon

    Superflo Bearing Delta

    Some of these names are trying to emulate or confuse the customers into believing they are on the same level as Matsushita's (Panasonic) patented Fluid Dynamic Bearing (FDB).

  10. #18
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    I don't think it's fair to put Magnetic/Vapo in the same group as the rest. Obviously, there is a "bearing" to keep the shaft in place, there's almost zero friction on that bearing since the shaft is supported by a magnetic field.

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    For me friction is not so much the issue as longevity; I assume maglev bearings have long MTTF?

    Did I just use an acronym? Shame on me.

  12. #20
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    Quote Originally Posted by ashiekh View Post
    Did I just use an acronym?
    You used an initialism.

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