Hey James,

Assuming the base is fixed to the ground, is there any chance the
"bottom" of the piece is "hollow" vertically for a distance, say over
a foot? I've had good success with a system where the "bearing" is
mounted high.

Imagine a 5 gallon pail inverted, with a bearing at the now highest
point, and the bearing mounted to the ground (base) by a "pole".
Imagine a "pole" mounted in the ground, or on a base in the ground,
and about a foot or so high (higher the better), with a roller
bearing at the top of the "pole", and the "pail" turned upside down
over all this. Keeps the bearing high, and dry.

If this doesn't make sense, lemme know and I'll send off a DWG or IGES
of it.

Take care.

Brian Lawson,
Bothwell, Ontario.
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On Wed, 01 Sep 2004 09:04:07 -0700, RainLover
wrote:

Hey everyone.

I'm building a sculpture and the client wants to be able to turn it if
he wants. It'll weigh around 300 lbs.

I want a large round track with bearings for ease of turning...
probably around a 2' or 2.5' diameter. It will be under the base, so
it won't be exposed to direct weather, but it will be exposed to
moisture and some dirt/leaves/whatever even though it'll be on a plate
itself.

I was thinking brass or stainless steel, but I don't know what's
normal? Would regular steel work if it was greased up well? It would
probably never get RE-greased, but then again, it's never going to
spin at 100 RPMs.. just be shifted around from time to time.

Any suggestions on local (seattle/tacoma) or online suppliers?

Thank you!!!

James, Seattle (port orchard), Washington, USA, Earth