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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
28.11.2014 - mod-your-case.de NH-D9L
Test verdict: "Mit dem NH-D9L geht Noctua einen etwas anderen Weg als bei dem kürzlich getesteten NH-U9S und kreiert einen sehr kleinen Twin-Tower-Kühler, welcher in der Theorie mit bis zu drei Lüftern bestückt werden kann. Durch diesen Aufbau ist Noctua ein sehr guter Spagat zwischen einer guten Kühlleistung und einer sehr hohen Kompatibilität gelungen. Die Kühlleistung liegt trotz der im Vergleich zum NH-U9S geringeren Masse und dem mittig montierten Lüfter auf einem sehr guten Niveau." (Patrick Seus, mod-your-case.de)
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27.11.2014 - TecnoGaming.com NF-F12 industrialPPC-2000 PWM
Test verdict: "Ventiladores de alta calidad y rendimiento!" (Alejandro Dau, TecnoGaming.com)
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27.11.2014 - mod-your-case.de NH-U9S
Test verdict: "Mit dem NH-U9S hat Noctua wieder einmal gezeigt, dass man ein gutes Produkt mit viel Entwicklungsarbeit noch besser machen kann. Dies bezieht sich nicht nur auf die Kühlleistung des neuen NH-U9S, sondern auch auf die Kompatibilität." (Patrick Seus, mod-your-case.de)
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27.11.2014 - DVTests.com NF-P14s redux-1500 PWM
Test verdict: "After I spent some time having fun with the biggest fans included in the series I can say that I am really impressed to see the classic NF-P14 revived in the shape of two brand new, much cheaper versions with absolutely renewed appearance and much better performance." (Dobrin Krastev, DVTests.com)
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