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Old 02-09-2007, 09:09 PM
Charlie C's Avatar
Charlie C Charlie C is offline
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Default And another ring roller

I did not want to steal Scratch's thread. Here are some pictures of the ring roller that I built some years ago. It will bend a 3/8 X 1 inch flat bar and maybe some more.
The first pic showes the chain drive, I was going to drive the gear box with a drill motor but to get the power out of the drill it would turned the rollers too fast and you would over run the bar ends and the end of the bar would drop between the rollers.
The second pic is a head on look at the rollers and the pressure bar. The bolts on top of the bar push down on the roller bearing block. Brass bushing are used as bearings for the rollers.
Pic 3 is pretty much the same as Pic 2.

Pic 4 shows the pressure bar at the top of the frame, the bolts push down on the bearing block. To remove the ring you pull the two pins( the bolt and the one with the cottor key) on both sides and lift out the top roller.

The ends of the ring do not form completely if the material is cut to the correct circumfrence. I either leave the material extra long than cut off after forming or I will cut to the correct length and weld the two ends togeather, grind the weld and put the ring back in the roller and reroll the ring. This way the ring comes out a true ring.
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  #2  
Old 02-09-2007, 10:27 PM
Scratch Scratch is offline
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Nice!
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  #3  
Old 02-09-2007, 10:36 PM
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justweldit41 justweldit41 is offline
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looks cool i bet the gearbox helps on the larger things
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Old 02-10-2007, 11:37 AM
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moe1942 moe1942 is offline
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Charlie, that is one of the best I have seen. Nice job..
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Old 02-10-2007, 01:00 PM
LeonS LeonS is offline
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Very nice, heavy duty roller, and w/the bushings makes it extra special, looks similar to the one my cuz built, except he used two gears for the reduction. What mat'l are the rollers? I also like the railroad iron anvil.
Thanks for sharing your ideas.
L*S
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Old 02-10-2007, 08:14 PM
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Charlie C Charlie C is offline
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Leon the rollers are seamless tubbing from some thing that I picked up some place. The shaft has a donut machined and welded on than the donut was pressed into the tubbing and welded. Than the whole works was placed between centers and machined all over. That made the shaft and the tubbing square with each other.

A friend just gave me another piece of railroad iron so the railroad anvil will be getting a twin. When the rain goes away.
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