Bronze bearing re-forming

[N Cook]

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.

 

[Homer J Simpson]

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.

Can't you buy Oilite bearings there?

http://www.applegate.co.uk/engineering/company/co_31354.htm

 

[[email protected]]

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.

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

 

[Ron(UK)]

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 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)