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Old 02-23-2019, 04:47 PM
corsican corsican is offline
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Join Date: Feb 2019
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POST ID # = 995380
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Question which of those 2 fans has greater LIFESPAN: true fluid dynamic (FDB) or ball-bearing?

suppose we got 2 fans of same size blades design etc.

one is a a true FDB fan

the other's a (double) ball bearing fan

both spin at same constant speed 24/7

which one will kick first?

I ask cause FDB at its core is suppose to be a super-sleeve bearing fan and sleeve-bearing fans are suppose to last much shorter than ball-bearing. does this apply to FDB too? I know FDB lasts a lot longer than reguler sleeve-bearing but how does it compare to the best ball-bearing fans?
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