Honey extractor- Dadant 20 Frame- Stripped Gears
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  1. #1
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    Aug 2015
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    Galveston, tx.
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    Default Honey extractor- Dadant 20 Frame- Stripped Gears

    The Worm gear on my Dadant 20 Frame extractor finally gave out. My extractor has the horizontal motor with a right angle gear box...Dadant stopped using the Jones motors and could not locate a replacement gear. The only suggestion was to upgrade to the new vertical style motor $460.

    it is a 38 tooth wormwheel gear (2" dia- 0.5 bore) I have not been able to source a replacement...

    I still have a few frames to extract so I am fixing up the manual unit... until I find a solution

    any Idea where I might find the gear in question?
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  3. #2
    Join Date
    Jun 2014
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    South Hamilton, MA
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    187

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    http://us.misumi-ec.com/
    http://www.mcmaster.com/

    If anyone knows of other parts places, please tell me. I don't have any need to extract yet. I would like to eventually have an automated apiary, and I don't know how much machining I want to do. There's one place that begins with "z" or "y" and is 4 letters.
    David Smolinski USDA hardiness zone 6b

  4. #3
    Join Date
    Jan 2006
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    Lee\'s Summit, MO
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    2,514

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    I converted my Dadant to the new vertical engine 3-4 years ago when I refurbished one just like yours. The lower reel bearing and motor had seized up and mice had taken it over for what appeared decades. I yanked all the pulleys, gears, belts, bearings, and motor. Cleaned it thoroughly. I cut the reel shaft 3-4" inches shorter (as required to convert) Installed a new lower reel bearing, lovejoy coupler on the reel shaft and the new motor. It's been a champ ever since. A single custom wormgear is going to run you as much as the electric motor and take a few weeks at least. Short term I'm not sure what to tell you other than try to borrow an extractor from another Beekeeper. Long term, convert it and you'll never look back.
    Ninja, is not in the dictionary. Well played Ninja's, well played...

  5. #4
    Join Date
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    Rader, Greene County, Tennessee, USA
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    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Welcome to Beesource!


    I think you will have better success replacing both gears (the one on the motor as well as the stripped one) as a matching set.

    For instance, for worms with a 1/2" bore and a 20:1 ratio, see this page: http://www.amazon.com/Boston-Gear-GH...8376555&sr=1-6
    There are a variety of mating gears linked lower down on that page, here is a direct link to one of them:
    http://www.amazon.com/Boston-Gear-G1...SFW7ZH7R3TPDS5

    Not cheap, but $75-$80 is quite a bit less than an entire new drive.


    Note: I have no experience replacing gears on a Dadant extractor. The above product pages are simply examples of matching gear sets available. Note that other combinations produce differing reduction speeds/ratios. Make sure you measure your motor shaft diameter before making a choice, and consider whether a keyway is needed for the motor shaft gear and if so, keyway size.
    Graham
    USDA Zone 7A Elevation 1400 ft

  6. #5
    Join Date
    May 2012
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    Rockford, MI
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    4,323

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Local tool and die shop should be able to bust one out in about an hour.

  7. #6
    Join Date
    Jan 2015
    Location
    Lima, NY, USA
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    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears


  8. #7
    Join Date
    Sep 2013
    Location
    Stone County Ar. USA
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    449

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Quote Originally Posted by Rader Sidetrack View Post
    Welcome to Beesource!


    I think you will have better success replacing both gears (the one on the motor as well as the stripped one) as a matching set.

    For instance, for worms with a 1/2" bore and a 20:1 ratio, see this page: http://www.amazon.com/Boston-Gear-GH...8376555&sr=1-6
    There are a variety of mating gears linked lower down on that page, here is a direct link to one of them:
    http://www.amazon.com/Boston-Gear-G1...SFW7ZH7R3TPDS5

    Not cheap, but $75-$80 is quite a bit less than an entire new drive.
    Rader is right , they need to be replaced as a set . I was also going to suggest Boston Gear ...
    Retired wannabee Hillbilly Farmer in backwoods Arkansas
    Our biggest crop is rocks ...

  9. #8
    Join Date
    Aug 2012
    Location
    Barrie, Ontario, Canada
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    1,512

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    The spun gear looks like it was made of phenolic. It is the weak link by design. Make sure the replacement gears are similar in case of a jam.
    Adam - Zone 5A
    www.adamshoney.com

  10. #9
    Join Date
    Apr 2003
    Location
    Greenville, TX, USA
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    4,613

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Boston Gear has just about anything you need. Another option is to convert it to the old Dadant belt drive with slip clutch. Pretty sure all the parts are still available.
    http://www.bostongear.com/products/open/wg.html#
    Last edited by Ross; 01-19-2016 at 01:03 PM.

  11. #10
    Join Date
    Jul 2011
    Location
    Richardson, TX, USA
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    378

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Quote Originally Posted by txbeeco View Post
    The Worm gear on my Dadant 20 Frame extractor finally gave out. My extractor has the horizontal motor with a right angle gear box...Dadant stopped using the Jones motors and could not locate a replacement gear. The only suggestion was to upgrade to the new vertical style motor $460.

    it is a 38 tooth wormwheel gear (2" dia- 0.5 bore) I have not been able to source a replacement...

    I still have a few frames to extract so I am fixing up the manual unit... until I find a solution

    any Idea where I might find the gear in question?
    A machine shop can probably make you another one but it won't be cheap.

  12. #11
    Join Date
    Apr 2003
    Location
    Greenville, TX, USA
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    4,613

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Some of the OWWM guys had a set made for Delta wedge bed planers. They were about $600 a set.

  13. #12
    Join Date
    Dec 2007
    Location
    Annapolis Valley, N.S. Canada
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    310

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Quote Originally Posted by txbeeco View Post
    The Worm gear on my Dadant 20 Frame extractor finally gave out. My extractor has the horizontal motor with a right angle gear box...Dadant stopped using the Jones motors and could not locate a replacement gear. The only suggestion was to upgrade to the new vertical style motor $460.

    it is a 38 tooth wormwheel gear (2" dia- 0.5 bore) I have not been able to source a replacement...

    I still have a few frames to extract so I am fixing up the manual unit... until I find a solution

    any Idea where I might find the gear in question?
    I realize this thread is 5 years old, but......
    I have the same issue as the original post, but now they have 3D printers. I have a good rear drive as well as a broken one. Could one not take the worm wheel that is stripped in the original post and simply have it replicated? It would not be made of metal thereby still remaining the weak link in the set up as was probably the design.

  14. #13
    Join Date
    Apr 2018
    Location
    Northern Colorado, USA
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    633

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Most 3d printer parts are nowhere nears as strong as machined/molded/cast parts. I would be surprised if a printed gear in this application lasted more than a few batches of frames.

  15. #14
    Join Date
    Dec 2008
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    Menomonee Falls, Wis.
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    4,178

    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Most quotes from the local gear shop, Butler Gear, start at 500 dollars.

    All you need to make your own is a blank, a Horizontal mill, a dividing head, and the gear train to spin the dividing head from the spindle at the PROPER speed.

    I did so to make a new bronze worm for my Rototiller brand Rototiller.

    Not the easiest route, but some of us Germans are very cheap.

    Crazy Roland

  16. #15
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    May 2011
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    Algoma District Northern Ontario, Canada
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    Default Re: Honey extractor- Dadant 20 Frame- Stripped Gears

    Quote Originally Posted by elmer_fud View Post
    Most 3d printer parts are nowhere nears as strong as machined/molded/cast parts. I would be surprised if a printed gear in this application lasted more than a few batches of frames.
    I dont have a lot of faith in even the monolithic or solid nylon or whatever they are called, gears. I kind of lump them all together as "plastic"! The first 3D printed stuff was even more sketchy but I think I saw some discussion that the latest technology was producing items with a lot better mechanical properties.

    I came across a machining forum that had a lot of info on retrofittting lathes with stepper motors and controls. There is lots of surplus items if you know how to spec. what you need.
    Frank

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