Fluid Dynamic Bearings

[skydigger123]

Do Fluid Dynamic Bearings (FDB) hvae anything to do with the
quality/life of the drive, or is it purely for noise levels?

thx!

 

[Impmon]

Do Fluid Dynamic Bearings (FDB) hvae anything to do with the
quality/life of the drive, or is it purely for noise levels?

It's supposed to be quieter although the initial spinup may be louder
than ball bearing drive.

 

[J. Clarke]

Do Fluid Dynamic Bearings (FDB) hvae anything to do with the
quality/life of the drive, or is it purely for noise levels?

Supposedly they last longer than ball bearings. I've never seen any
statistics on this though that did not come from someone who was trying to
sell FDBs so take it with a dose of salt.

 

[Arno Wagner]

Do Fluid Dynamic Bearings (FDB) hvae anything to do with the
quality/life of the drive, or is it purely for noise levels?

FDBs will likely fail catastrophically, if they do. Ball bearings
can fail by degrees (and get yery loud before they do). All in
all FDBs should be about as good ad BBs, but only time will tell.

Arno

 

[Leo]

FDBs will likely fail catastrophically, if they do. Ball bearings
can fail by degrees (and get yery loud before they do). All in
all FDBs should be about as good ad BBs, but only time will tell.

For the last couple of years practically all problems met to me with
bearings were problems with FDB. Some tens Seagate Barra II, II and
IV, Fujitsu MPG-FF with jamming FDB and only one SCSI Fujitsu (9 years
old) with collapsed BB. But FDB are steadier against impacts.

Leonid