[time-nuts] 53132 replacement fan
David G. McGaw
david.g.mcgaw at dartmouth.edu
Mon Nov 21 13:15:43 EST 2016
I will point out that I have rejuvenated many a fan by peeling off the
round label covering the bearing and adding a small amount of oil.
On 11/21/16 12:57 PM, jimlux wrote:
> On 11/21/16 6:39 AM, Charles Steinmetz wrote:
>> Tom wrote:
>>> Airflow 7.17 CFM
>>> 6300 RPM
>>> Noise 24 dBA
>>> Same exact form factor.
>>> Air Flow 9.2 CFM
>>> 9500 RPM
>>> Noise 42 dB(A)
>> Note the 18dB greater noise (that's a HUGE difference). Even with bad
>> bearings in the original fan, it is probably considerably quieter (by
>> 10dB or more) than the proposed replacement. On the other hand, the
>> replacement moves 28% more air, which may be a good thing.
> That's a 40mm fan, which is a standard size, I'll bet you can find a
> slower turning/quieter fan.
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