Originally Posted by DSQR
FYI - If noise is the only issue, a ball bearing fan will produce more noise than a sleeve bearing fan.
I had never thought about bearing types in computer case fans but this video
suggests that sleeve bearing fans get louder as they get older and its the opposite with ball bearing fans - they get quieter with more use. Plus the ball bearing fans generally last longer and sleeve bearings are more suited to a vertical installation rather than horizontal.
2011 Rockwood Signature Ultra Lite 8293SS, 12K Equal-i-zer
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed, 3.73
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