- 900 RPM +/-10% 148.72 CFM +/-10%
- Fluid Dynamic Bearings (FDB)
- $17.99 –
- Free Shipping (restrictions apply)
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Not really a FDB 03/29/2014
This review is from: BitFenix Spectre Pro All Black 200mm Case Fan
They look good and are reasonably quiet at 5v when operated vertically.
They are noisy if you mount them horizontally. I opened one up, and found there to be no seal for the fluid. There wasn't enough fuild to lubricate the thrust washer on one end of the shaft and that was causing noise.
Even worse, the other end of the shaft had an rubber o-ring on it instead of a thrust washer. I doubt that rubber will last very long when being spun against the grooves in the bearing.
This shouldn't be called a FDB, it is designed horribly.
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