Quote:
Originally Posted by jt20
my personal opinion on this issue:
metal fans extend a greater mass away from the axis of rotation allowing a much greater risk of being unbalanced. Logically, this imbalance should pose threats to whatever bearing surfaces are along this axis.
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This is like Ben Bernanke speaks. Say something as if nothing is spoken. I do not know whether I understand. Air flow depends on the diameter of the fan, speed of rotation. The pitch may make a difference but I am not a scientist. Personally, I think they should be compatible and I would evaluate it on price. My 2 cents.
