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Johan
 
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Default Need a source of small carbon brushes

I work part-time for a non-profit medical equipment supplier, repairing
and maintaining electric wheelchairs, scooters, etc.

I've repeatedly had to consign an otherwise perfectly sound machine to
junk simply because the manufacturer no longer stock motor brushes for
their older models. The brushes that _are_ available cost anywhere from
$13 to $20 dollars each -- not each pair, each, dealer cost.

I've been measuring and recording brush sizes from as many different
pieces of equipment I can and am looking for a source of generic carbon
brushes for 24 VDC motors. I doubt there's much difference in the
composition of the brushes as nearly all the motors have very similar
current loads and power ratings. -- I.e. no copper-impregnated carbon
compounds, etc. All seem very similar that way.

Of course, I'm also comparing the brushes that are currently stocked
with the older versions as well. Sometimes we get lucky and a newer
model's brushes fit the older machines. Still pricey as all heck,
though.

I'm looking for a supplier to get the prices down for folks who have no
funding source for repairs, etc.

Anybody know a good source for small quantities? (25-50 pairs) I can FAX
or email pictures of the brush assemblies and their dimensions. Most
incorporate the contact plate and springs. (for plain ol' screw-cap
brush holders)

Most are about 1/4 X 7/16 X 1/2 to 3/8 X 1/2 X 5/8 Thickness, width,
length.