We have a Tmec expert on the forum and I am sure he will have some thoughts on this for you.
Did you purchase from Excalibur?
What is Excalibur telling you?
Why did it eat up the roller, was the roller seized?
You might try a chain guide as opposed to a chain roller.
Here is a link to several different rollers and guides.
http://www.ebay.com/sch/i.html?_from...rs=spell_check
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