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Thanks Chad and Ginny!

As for the bearings, they're just sealed ball bearings for a 3/8" shaft. I machined aluminum bearing blocks and pressed the bearings into them, and what you see in the picture is the back side of the block.

I did some work on my burner tube today, but I didn't get far enough along to see a flame. :( Definitely this weekend though, and I'll have more pictures then.

-Dave