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  #11  
Old 02-03-2021, 10:58 AM
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Originally Posted by toprecycler View Post
Quick search pulled this up. Maybe this will help you search more
I have that stored on my computer, I was there yesterday.
I am hoping to go with the K profile because of ease of availability at any car parts store or auto dealer.
I may be machining another one, but I have other things on the fire at the moment so trying to bypass that.
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  #12  
Old 02-03-2021, 12:56 PM
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?.......
I may be machining another one, but I have other things on the fire at the moment so trying to bypass that.
If you do end up machining another multi v pulley, consider using a slice of heavywall pipe for the rim rather than bending flat bar. Might save a lot of aggravation.

If you have issues finding shorts of pipe close to the right dimension, check with your local oilfield supply. Casing couplings can be bought separate from the pipe bodies.... in the larger sizes, 5/16" - 3/8" wall thicknesses are common measured from the thread root to OD.

Just checked my old (35 years) Browning catalog. That catalog includes a poly vee section, but jumps directly from J profile to L and skips K.

Another thought.... every pumpjack has at least a pair or triplet of B or C section vee belts driving the gearbox. The sheaves/pulleys are changed routinely to change the speed of the jack. Most supply stores will have sources for double and triple groove pulleys. Whether or nor you can afford oilfield pricing is another issue.
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Last edited by camdigger; 02-03-2021 at 01:19 PM.
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  #13  
Old 02-03-2021, 04:11 PM
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Would there be such a thing as a coupling that was 11" OD?
Would that be for 10" pipe...do they even use that size?
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  #14  
Old 02-03-2021, 05:43 PM
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Get a piece of dom tube. Probably be $150 for a foot, or more


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  #15  
Old 02-03-2021, 05:49 PM
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Originally Posted by Ironman View Post
Would there be such a thing as a coupling that was 11" OD?
Would that be for 10" pipe...do they even use that size?
Not real common, but there is 10.75" casing. Another source might be a drill collar cutoff from someone like Argus Machine. Drill collars are around up to 13" OD and usually have a bore no larger than 3". Even as heavy as that is, drill collars do crack in rough drilling.
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  #16  
Old 02-03-2021, 07:39 PM
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There is a few 11" flat belt pulleys on ebay,
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Last edited by digr; 02-03-2021 at 08:28 PM.
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  #17  
Old 02-03-2021, 08:13 PM
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The guy I was telling you about has only very old equipment and all are V belt pulleys.
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  #18  
Old 02-04-2021, 07:28 AM
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I am no help on the pulleys,but i buy belts from "the V Belt Guys"
They have all kinds of belts and they have great prices.
I make an alternator kit to replace a DN50 on a Series 60 engine in buses.
I needed a belt,12 rib that the auto stores could not supply.
V belt guys have them in stock for 20 bucks or so.
I have 60,000 miles on one of those belts now,no wear to be seen,so the belts are good stuff.
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  #19  
Old 02-04-2021, 06:15 PM
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A post by Three Piece triggered a thought. Could you machine an old compressor flywheel to serve as your drive pulley? I 'm guessing this is for the Witte to run a generator head so it's low RPM.
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  #20  
Old 02-06-2021, 04:08 PM
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Would this work? Takes some machining.
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