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USA Trains

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USA Trains
Posted by Anonymous on Thursday, July 10, 2008 8:33 PM

Need to know what these parts are made of? (circled parts)

Toad

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Posted by GP-9_Man11786 on Thursday, July 10, 2008 8:40 PM
My guess would be zinc. The parts are about the right color. Hope that helps.

Modeling the Pennsylvania Railroad in N Scale.

www.prr-nscale.blogspot.com 

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Posted by Anonymous on Thursday, July 10, 2008 8:51 PM

So zinc would wear down easy? Like that is on most all electrical pickups for g gauge.

Toad

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Posted by jerryl on Thursday, July 10, 2008 8:58 PM
I think they are graphite...same material motor brushes are made of.   Jerry
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Posted by mgilger on Thursday, July 10, 2008 9:02 PM

Graphite would be my guess also.

Mark

M. Gilger - President and Chief Engineer MM&G web

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Posted by DMUinCT on Friday, July 11, 2008 8:44 AM

   It's a Motor "Brush" or Pickup "Brush" (125 years ago they were copper brushes) and are normally made of a carbon materials such as graphite mixed with a hardening agent like copper dust, asbestos, or asinic.

  They very in hardness, they are designed to wear, they are required to be softer than the surface they run against, such as a motor commutator or as a pickup on the side of a wheel, both of which you do NOT want to wear.

Don U. TCA 73-5735

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Posted by vsmith on Friday, July 11, 2008 9:12 AM

Just as an aside, I wasnt aware USA sold those - I could use those, I have to add power pickups to a couple of projects, thanks for the sideways heads-up Big Smile [:D]

got a part # Question [?]

   Have fun with your trains

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Posted by Anonymous on Friday, July 11, 2008 9:40 AM
 vsmith wrote:

Just as an aside, I wasnt aware USA sold those - I could use those, I have to add power pickups to a couple of projects, thanks for the sideways heads-up Big Smile [:D]

got a part # Question [?]

R2084Electrical Pick-Up with Brushes 7.50

 

Toad

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