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RE: (ET) Brushes for sweeper



hmm methinks we may be talking different brushes here....???
Dave

> National Carbon Products makes brushes.....(800)395-7776
> Located in Greenville SC.
>
> If you provide the motor model number, I can see if a drawing exists as I
> work for GE Motors.  That would make it easier.  As a last resort, you 
> can
> measure the width and thickness and guesstimate a length and ask them for
> a brush,
>
> Brushwear is related to surface speed, sparking, spring tension, and
> commutator roughness.  Cleaning the commutator with non-metallic 
> sandpaper
> will help and make sure no mica fins between the segments are sticking up
> due to copper wear.
>
> Silicone sealant also makes brushes wear extremely fast - do not seal the
> motors with it.....great for the bathroom but not for dc motors.
>
> ...Walt
>
> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu
> [mailto:elec-trak-bounces cosmos phy tufts edu]On Behalf Of Christopher
> Zach
> Sent: Monday, September 05, 2005 9:02 PM
> To: Elec-trak list
> Subject: (ET) Brushes for sweeper
>
>
> Does anyone know where I can find spare brushes for the Elec-trak
> sweeper? At the same time is it ok to run the motor on that at a
> somewhat slower speed? It really picks up well but I think it's going to
> beat the brushes to death.
>
> Chris
>
>
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