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  #1  
Old 10-21-2010, 01:08 PM
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Lube for wood bearing surface?

Hey. I'm not much of a wood butcher, but I made a jeopardy wheel, complete with a clacker (tongue depressor)

The wheel is plywood, with a hardwood "bearing" glued to the backside (3"x3"x1/2" hardwood with hole in center) It's less then 1/8" off during it's spin, so I think I did damn good

The "axle" on which the "wheel" spins is foam paintbrush handle that's been sanded at a slight taper, and has a fender washer screwed to it (preventing the wheel from slipping up the axle, or off the axle)

The problem I have is that it spins well for a few spins, then rotates less revolutions before stopping. It never binds up completely, but it does get slightly harder to spin.

I used some bee's wax smeared on the "axle" and the inside of the "bearing" I also have access to silicone spray, and teflon spray... I could also use a rats tail file to put small groves in the axle or bearing to hold the lubricant...

Which would be the best lubricant, and, should I bother with the file?

Thanks everyone
~Nate

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  #2  
Old 10-21-2010, 01:17 PM
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I would use candle wax.

Better still though, two pieces of metal tubing one that slips into the other.
Mount one in the wheel, one on the shaft.

An old junk bearing mounted in the wheel as another alternative.
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  #3  
Old 10-21-2010, 01:20 PM
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a tiny bit of Never Seize?
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  #4  
Old 10-21-2010, 01:22 PM
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Quote:
Originally Posted by Nate View Post
Hey. I'm not much of a wood butcher, but I made a jeopardy wheel, complete with a clacker (tongue depressor)

The wheel is plywood, with a hardwood "bearing" glued to the backside (3"x3"x1/2" hardwood with hole in center) It's less then 1/8" off during it's spin, so I think I did damn good

The "axle" on which the "wheel" spins is foam paintbrush handle that's been sanded at a slight taper, and has a fender washer screwed to it (preventing the wheel from slipping up the axle, or off the axle)

The problem I have is that it spins well for a few spins, then rotates less revolutions before stopping. It never binds up completely, but it does get slightly harder to spin.

I used some bee's wax smeared on the "axle" and the inside of the "bearing" I also have access to silicone spray, and teflon spray... I could also use a rats tail file to put small groves in the axle or bearing to hold the lubricant...

Which would be the best lubricant, and, should I bother with the file?

Thanks everyone
~Nate
Natural bee's wax is a relatively soft wax you might try regular candle wax/ parrafin as it's harder. Plumbers candles which you can get at a True Value hardware store are the hardest wax I know of, they're parrafin with steric acid added to raise the melting point of the wax. I'd suspect the friction from turning is heating up the bee's wax melting it where it's then less than a perfect lubricant. Ultimately you'll probably need either a harder axle or bearing material. Plastic against steel/aluminum/brass is a pretty good combo or the traditional brass/bronze bearing on a steel axle.

Or scavange a ureathane roller blade wheel/s somewhere and use that roller bearing, you might be able to use drywall screws to attach the complete wheel to the backside or the frontside or better stiil both front and back sides of your project and then a bolt for the axle.
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  #5  
Old 10-21-2010, 01:32 PM
1990 500SL
 
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Another thought, if you go with just wood on wood.

Varnish the two surfaces, then use wax or even soap.
Wax prefered, I like the plumbers wax suggestion.
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  #6  
Old 10-21-2010, 01:33 PM
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Olive oil is also quite a good lubricant
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  #7  
Old 10-21-2010, 01:36 PM
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Cant to candles, or anything from Ace Hardware. Living in tents, in Kuwait. Options are bees wax, silicone spray, or teflon spray, with or without groves in the surfaces...

Cant make a change in design so late in the game... Good thought though, I could have gotten a paint roller.

Tks for the help!

~Nate
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  #8  
Old 10-21-2010, 01:51 PM
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Quote:
Originally Posted by Nate View Post
Cant to candles, or anything from Ace Hardware. Living in tents, in Kuwait. Options are bees wax, silicone spray, or teflon spray, with or without groves in the surfaces...

Cant make a change in design so late in the game... Good thought though, I could have gotten a paint roller.

Tks for the help!

~Nate
Oh! So in that case you best bet is to find some JarHeads! The USMC is by far the best at field expedient fabrication, over a hundred years of making due with all the crap the Army and Navy throws away breeds a culture of improvision!

On a serious note though thanks and keep safe, good luck!
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  #9  
Old 10-21-2010, 02:01 PM
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Make a couple thrust washers out of a milk jug (polyethelene) or similar container (motor oil bottle, antifreeze jug)
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  #10  
Old 10-21-2010, 02:06 PM
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Petroleum jelly?

I use it on the exposed, fast-surface rusting spool bolts of the patio awning on the exterior of my motorcoach.

Last edited by Skid Row Joe; 10-21-2010 at 03:05 PM.
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  #11  
Old 10-21-2010, 02:16 PM
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Quote:
Originally Posted by Army View Post
Olive oil is also quite a good lubricant
I like it with thinly sliced fresh garlic cloves, sauted with spaghetti - yummm.

Or, with vegetable oil and lemon juice drizzle over a plain lettuce / sliced celery salad - double yummm...
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  #12  
Old 10-21-2010, 02:39 PM
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diesel exhaust soot?
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  #13  
Old 10-21-2010, 03:06 PM
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you could always grind up the graphite in a pencil
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  #14  
Old 10-21-2010, 08:19 PM
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graphite (ground up pencil would work well. Teflon spray would be good a well. Any fat/grease will help. there are many applications of wood bearings, normally its metal on wood, wood on wood is not as good. I wouldnt worry about grooves as the wood is porous and they may cause it to stop in the same spot all the time. How long does this need to spin for & how fast? You dont want to keep every one waiting too long for a result!!

Try & keep the sand out of it !!

Good luck !!
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  #15  
Old 10-22-2010, 12:00 AM
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Bar soap is actaully really good for this kind of stuff. I knew an old carpenter who would us it for putting in quality hinges, where flat head brass screws are used. Or any screw that's long and will bind up: you just drag the screw across the soap so that a bit gets into the threads and the sucker will go in about twice as easy. If it works that good doing that, it could be good for what you have going on.

The taper might be a problem also. Violin pegs work on the principle of a taper binding in a similarly shaped hole.

So, what kind of jeopardy game you got going on the side?

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