Works to a point, but there are two bearings in every such fan that I have ever seen. Only the truly small fans have a single bearing (think CPU/GPU fan in your PC).
The typical arrangement found under the label is a clip (metal or plastic), a washer, a ball (or sleeve) bearing, a spring, another ball (or sleeve) bearing, a washer, and then finally the armature. You have to remove the label, remove the clip from the shaft, and the fan and hub will slide off. Then you lube *both* bearings and reassemble. -Chuck Harris David G. McGaw wrote: > 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. > > David N1HAC > > > On 11/21/16 12:57 PM, jimlux wrote: >> On 11/21/16 6:39 AM, Charles Steinmetz wrote: >>> Tom wrote: >>> >>>> EFB0412MD >>>> Airflow 7.17 CFM >>>> 6300 RPM >>>> Noise 24 dBA >>>> >>>> FBK04F12U >>>> 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. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
