Does anyone know how to compress or deform those small plain bearings of small motor shafts.? An awkward sized motor, that if the wear on one of these oolite/cintered or whatever bronze coloured bearings could be magicked away would give some more life to the motor. I don't fancy turning a salvaged one to fit, hardly anything to get hold of.
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
Can't you buy Oilite bearings there?
on
Oilite bearings are sintered bronze with oil pressure-injected into it. The idea is that the oil gradually oozes out as the bronze wears. These are short-term motors with minimal longevity, however that may be prolonged with the use of specialized lubricants. Most applications are high-speed, low-torque motors such as models and such-like, so any of the high-tack lubricants made for the hobby industry are applicable. Look for those designed for R/C cars or boats that stay where put and are formulated not to attract (much) dust or dirt. Nothing is perfect, but some of these lubricants are pretty damned good.
To answer your direct question, NO they cannot be safely deformed as they are a structure that may be likened to that of a sand-castle. Once their internal structure is disturbed by pressure or impact, they will crumble with possibly spectacular (negative) results.
Peter Wieck Wyncote, PA
on
Peter is correct, I can see what you're getting at by suggesting crushing it lengthways to reduce the diameter of the bore, but you`ll probably find that it cracks.
I think the only practical way would be to open out the bore and accommodate a brass sleeve which is a good fit on the motor shaft.
Sometimes the wear is 'one way' that is, the bore has worn oval in the direction of the pressure on the shaft, and it may be poossible to rotate the motor so that a relatively unworn part of the bearing does the work.
IALSBIMJW (It`s a long shot but it might just work)
Ron(UK)
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