Dempster 12A main shaft 8’

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Blade Runner
Posts: 1
Joined: Sat Jan 05, 2019 10:49 am

Dempster 12A main shaft 8’

Post by Blade Runner »

I am looking for a used main shaft for a 8’ Dempster 12A.
Moderate wear is acceptable. Jeff Johnson
mtblah
Posts: 1997
Joined: Thu Mar 26, 2020 12:09 pm
Location: new braunfels TX

Re: Dempster 12A main shaft 8’

Post by mtblah »

Jeff , the main shaft on your Dempster , ( or most any windmill ) is a standard cold rolled piece of round steel , 7/8 inch stock cut to length then take to your local machine shop and they can cut the threads to match the existing nut you took off each end .
there are several windmillers on this site with the skills & machings that do this kind of work regurlarly and they are now just sitting back & smiling :D
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windybob
Posts: 3870
Joined: Mon Jan 14, 2019 5:59 pm
Location: Ames Oklahoma

Re: Dempster 12A main shaft 8’

Post by windybob »

Mike a 12-A mainshaft is 1 1/8 minimum. Maybe 1 1/4. They are pretty stout mills. Reg #12 8 ft are 1 1/8.

Dan B can have them.
Call Dan Benjamin for parts. P M me for the phone number. IF YOU TALK TO HIM, AND HE HELPS YOU, THEN BUY FROM HIM. IT CREATES GOOD KARMA.
mtblah
Posts: 1997
Joined: Thu Mar 26, 2020 12:09 pm
Location: new braunfels TX

Re: Dempster 12A main shaft 8’

Post by mtblah »

Windy is right , again , 8ft #12 is 1 1/8 "dia fan shaft , 10 ft #12 fan shaft is 1 3/16 "
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