I need ideas for a support bearing for a spinning table.

I need to spin a 24 inch round table at about 150 RPM several hours a day. The motor will drive a belt going around just under the table at a circumference that allows the slow speed. What I can't find is a lazy susan or bearing that I can attach under the spinning table and to the top of my work stand. Because the motor is driving the table it is also pulling it sideways so a standard lazy susan bearing might not work as they are designed for force downward, not sideways.

Any thoughts.

Reply to
Jack R
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i built a 24" lap grinder that spins at around 125 rpm under load. i used the following plans:

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and just scaled them up for 24". i used 2 pillow blocks and a couple of pulleys to make the arbor, and 2 flange blocks to support the axle.

chose the pulley sizes to get the speed you want. if you want my spreadsheet that has the part numbers and places i used, send me an email. remove the obvious from the address.

Reply to
Charles Spitzer

Check out

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for some ideas.

George Anderson Montreal Canada

Reply to
George

Ouch!

Reply to
zxcvbob

Hi,

Any of the ball bearings types that one normally thinks of are called "deep groove" bearings.

They will take a load downward (axial), as well as sideways; usually pretty substantial in each direction.

Try a company like Bearing Specialties, etc.

Bob

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Reply to
Robert11

Current Dodge truck front hubless designs come to mind. Maybe the 1 ton model, 2000, 2001 year. Bottom flange ( inboard on the truck ) will have 4 threaded holes so you can bolt it to something. The top flange ( outboard on the truck, where the rotor and wheel attach ) will have eight studs. Maybe 5-6" total height. Nice big ol' tapered bearings in there, too. That'll handle a load!! And guess what? With rim / tire assembly on the vehicle, it turns out to be almost a 24" diameter if not more. Put a side force on it all you want, that's how they work in their designed environment. Multi-directional load.

Reply to
Mark and Kim Smith

What are you going to do with this thingamajig? Cosmetics important? If you can find a junk potter's wheel, it might work.

Reply to
Norminn

150rpm is quite fast for 24inch diameter. It's fast enough to need things fastening down to it.

For a hub, go to a scrapyard and get a car front hub. Something with a Macpherson strut often allows easy unbolting and re-mounting. A brake disk can make a base for the table.

Rubber toothed belt drives will easily drive by friction alone onto a turned cast iron cylinder and a toothed pinion on the small diameter motor shaft.

Reply to
Andy Dingley

Drive the table with a rubber wheel at the edge, and put one or more idler wheels across from the drive wheel. What's this for, pottery?

Reply to
Goedjn

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