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L1A liquid bearing?

Originally posted by: 0roo0roo
Originally posted by: Cerb
fancy sleeve bearing = fluid bearning
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don't all sleeve bearings have oil? 😉 thats a fluid.
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Yes, but so do ball bearings.
IIRC, the point of the fluid bearing is that the oil used, in theory, keeps a thin, moving film so that there is no metal-to-metal contact.

...in theory.
 
sleeves wear out faster then ball bearings.

that being said, sleeve bearings at low rpms like panaflos will last for a long time😛

i think my vantec stealths haave balls though.. i forget.
 
Originally posted by: 0roo0roo
sleeves wear out faster then ball bearings.

that being said, sleeve bearings at low rpms like panaflos will last for a long time😛

i think my vantec stealths haave balls though.. i forget.
Click to expand...
Many 15000rpm SCSI drives use fluid bearings, and they're warranted for five years of 24/7 operation. That comes out to almost 40 trillion revolutions. Not bad for "sleeve" bearings 😎

The difference between the Panaflo hydrodynamic bearing and a conventional sleeve bearing is partly that the Panaflo uses a thrust plate that has a wave shape that is made to keep the rotor suspended on an oil bearing... check their PDF file here for a schematic on that.

 
Generic sleeve bearing fans have a habit of dying early, after less than a year usually - at least for me. I've not had a Panaflo die on me yet.
 
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