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Old April 10th 05, 01:59 PM
Wilson Lamb
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If you can get a little metalwork done, a front car hub would be great.
Tell us how much weight you want to carry.
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
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
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

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

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Old April 10th 05, 03:14 PM
Duane Bozarth
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WillR wrote:
Force is acting downward when stopped and mostly horizontal when rotating.

The gravity load doesn't behave any different whether it's spinning or

To OP, what you're application calls for is a "thrust bearing". Lazy
susans or rotating TV, etc., stands are commercially available for 100+
lbs. The large under-counter one Dad and I built for Mom some 30 years
ago now, used the thrust bearings from a small disc--3/4" shaft
available from a good farm implement supply. What their actual load
rating is I'm not sure, but it would easily hold 250-300 lb, I'm sure.
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Old April 10th 05, 03:44 PM
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1000 pounds and ball bearings.

"WillR" wrote in message

I checked Lee Valley. Load capacity 100 lbs. on the largest Lazy Susan.

They use roller bearings. Since I was going to suggest this was a roller
bearing application anyway it seems like a good fit... If these are high
quality they should be low friction. Maybe they would work...

Force is acting downward when stopped and mostly horizontal when rotating.

Occasional Techno-geek

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