Jules Richardson wrote:
Because they were never sold presumably, unlike
gearbox bearings.
Presumably there are parts of a hard disk that never left the factory
except in a complete drive.
Nah, all bearings are standard.
Yes, and the spindle motor bearings in an ST506 are probably standard too
(although with considerably less run-out than any car gearbox bearing
I've seen!). The problems are :
1) Fittlng new beraings to the spindle motor (which was assembled with a
press, and which wasn't designed to ever come apart
2) Bearing failure is not a common problem in these drives. Other parts
are a lot more speciallised.
-tony