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Noctua SSO-Bearing
Thanks to an optimised principle of operation, the self-stabilising oil-pressure bearing (SSO bearing) surpasses current types of ball, sleeve or liquid bearings in terms of long-term stability and quietness.

    Noctua - Bild
    The rotary motion of the axis generates pressure upon the special oil enclosed within the bearing. This causes the build-up of a dynamic pressure field that centres and stabilises the axis within the bearing shell. While conventional liquid bearings employ the principle of hydrodynamic pressure too, the SSO bearing is equipped with an additional magnet that supports the self-stabilisation of the rotor axis. This allows for a faster, more precise and more reliable centring of the rotor axis and thus increases the long-term stability and quietness of the bearing: When the fan starts, the dynamic pressure field of the liquid bearing needs to build up first, which results in an initial precession of the axis, the so called gyro effect. This amounts to an increased abrasion until the axis is stabilised through the build-up of the dynamic pressure field, which may by and by lead to increased noise emission and bearing defects. Because of this, the SSO bearing possesses a built in magnet, whose field ensures the immediate self-stabilisation of the rotor and hence reduces the gyro effect. In addition to the stabilisation during the start-up phase of the fan, the supporting magnet allows for a more exact centring of the axis within the bearing shell and thus further reduces bearing resistance, abrasion and noise emission.

    Noctua - Bild





    Noctua - Bild
    The sleeve and ball bearings currently predominating the fan market exhibit major drawbacks: While conventional sleeve bearings initially have very low noise emissions, they mostly possess unsatisfying long-term stability, which leads to a short overall lifespan and increasing noise after longer operating times. High grade ball bearings, on the other hand, while providing satisfying long-term stability operate at slightly higher noise levels from the beginning. The SSO bearing not only surpasses the quietness of conventional sleeve bearings but also the long-term stability of current top-of-the-line ball bearings.

    Noctua - Bild




Noctua
02.09.2015 - OverclockersClub.com NH-L9x65
Test verdict: "Are you looking to build a small system based on an ITX motherboard? With a six-year warranty, the NH-L9x65 retails for $59.99 and would be right at home in your HTPC build." (Chris Dawalt, OverclockersClub.com)
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01.09.2015 - WhatNext.pl NH-D15S
Test verdict: "Oczywiście cooler posiada wszystko to co wersja NH-D15 – znakomitą jakość wykonania, stosunkowe ciche działanie na niższych obrotach, świetne akcesoria i dobrą wydajność. Dlatego też, jeśli starszy model NH-D15 jest zbyt szeroki i nie zamontujecie dwóch śmigieł to polecam zakup tej wersji." (Michał Andruszkiewicz, WhatNext.pl)
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01.09.2015 - Neoseeker.com NH-C14S
Test verdict: "With the availability of past and future mounting kit options from Noctua, a 6 year warranty and several fan configuration options, the NH-C14S cooler proves an exceptional design that will help your computer system operate with ideal thermal performance." (Marvin Purdy, Neoseeker.com)
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01.09.2015 - ITPC.net.pl NH-U14S
Test verdict: "Mogę z czystym sumieniem polecić każdemu chłodzenia tej firmy, gdyż wyróżniają się wysoką wydajnością i idealną wręcz jakością wykonania. Ewidentnie jest to wzór do naśladowania." (Karol Kaszubowski, ITPC.net.pl)
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