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sjfcontrol wrote:'Ya guys do realize this is a thread from four years ago, right?

At the rate most ham projects get done, he's probably still waiting for a good deal on the feedline.

If you're not looking for super-low-resistance, a Delrin 527UV bushing turned to slip fit inside a sleeve made from standard PVC pipe is pretty smooth moving and more weather resistant than anything metal. The Delrin should hold up pretty well, and the PVC is dirt cheap to replace if it fails after a year or two.

Smoothest bearings I ever managed to homebrew for a telescope were Delrin scraps running against PVC for the elevation and against a junk CD for the azimuth. Felt almost like ball bearings, but with just enough resistance to hold position once the scope tube was balanced and the CD leveled.