wrote in message
...

I can't find anything to solve my problem because I obviously don't know
how to
explain my problem.
I want the be able to spin by hand a heavy 24" round turntable on top of
my
workbench using centrifugal force. Like the wheel on a car but horizontal.

I was going to make it out of 4 inches of MDF but I can't find a bearing
or
swivel or anything that will allow this top spin horizontally.
Lazy susans are strong and stable but don't allow a friction free spin.

I'm sure what I need is out there but I have no idea what it is, or what
it's
called.

There are all sorts of bearing to spin stuff vertically, isn't there one I
can
attach to this table that doesn't cost hundreds of dollars.

Here is how I would do it.
I would drill 3" holes in all but the last (top) piece of MDF. Insert two
or three common single row sealed ball bearings. Mount the shaft on a 12"
square steel plate. Weld it or if no access to a welder, press and swedge
fit. Add a spacer over the shaft to stop the disc from hitting the base
and allow the shaft to reach all ball bearings without touching the top
piece of MDF.

Mount/secure vertically and balance. Re-mount on bench and spin away.

Note: Bearing holes and shaft size are dependant on the size bearing you
buy. Typ. Bearing this general size is $8. Graingers.

Dave



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