On a lazy susan I made, there were two pieces -- the revolving "plate", and
the stand on which the plate sat. I mounted a large dowel to the back of
the revolving plate, and then recessed the bearings from the front wheel of
a bicycle into the stand., with a similar bearing set at the bottom of the
column into which the dowel sat, This gave a very smooth and sturdy support
to the plate, which turned easily with the touch of the hand.
wrote in message
...
On Sun, 10 Apr 2005 20:44:33 -0400, "John Flatley"
wrote:

BlairR,

I may be missing a few appends to your posting, but I still do not have a
picture of what you are trying to do.

You want to spin by hand, not turn, a 24" diameter, 4" thick MDF turntable
located on your workbench. And you want it to spin this turntable with
something unknown on it, at some unknown rpm for some unknown period
of time.

Although I've seen a number of solutions offered, I submit to you that if
you
describe in some detail what you are trying to accomplish with your
turntable,

I want to spin a heavy turntable 24" across. I want it to spin easily and
for as
long as possible while supporting about 100 pounds.

Replace the wheel and tire on a utility trailer, or a car or truck with a
heavy
table the same size as the tire turn it on edge so it is horizontal and
give it
the ability to sit in or on a work bench and it would work great.

I can get the hub, and the bearing.
But getting the part the bearing sits in and fastening that to a work
bench is
beyond my ability and rather costly.
I was hoping there was a product out there that would do this.
I can find all kinds of shafts and bearings to spin a vertical disk like
grinding stones but nothing that will support a horizontal disk.