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Brass Pulley for My TT

I recently had a machine shop make a Brass pulley for me to try, it is working great but; I am seeing some yellowish dust which I assume is brass. Is this normal? I don't have much knowledge of Brass so I am looking for answers??? Will this stop after a while or not? The belt is made of Mylar.. I have cleaned it off a couple times but it is still producing it...
jsman

Showing 1 response by invictus005

invictus005
597 posts
 
Brass is soft and a bad choice for a pulley. The mylar belt may polish a spot and stop, or it may continue to keep cutting it and producing brass powder.

Precision pulleys are made from stainless steel. 
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