Farm Equipment - Model 20 AC disc harrow bearing assemblies

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Model 20 AC disc harrow bearing assemblies

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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=104596
Printed Date: 04 Oct 2025 at 6:55am
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Topic: Model 20 AC disc harrow bearing assemblies

Posted By: Cernunnos
Subject: Model 20 AC disc harrow bearing assemblies
Date Posted: 10 Apr 2015 at 2:28pm

I started getting my disc ready for field work and thought this would be a good year to really go through it by replacing the bearings. Placed a call with Brenda at Sandy Lake and she looked up the AGCO price which turned out to be about $340.00 per bearing assembly (part # 70330133). That's a lot more than I wanted to spend. She mentioned that some people replace the wood bearing with three metal bearings instead to make up the width of the original bearing. Before I go that route, does anyone know of any aftermarket sources for wood bearings of this type? Are the aftermarket bearings pricey also? Or has anyone made these wood bearings themselves (I'd assume they would be hard maple or oak)? Lastly, it seems that replacing them is pretty straight forward but are there any tips on doing so or anything I need to do to prep a wood bearing?

Any information would be greatly appreciated.

P.S. I know it has been mentioned in some other posts but I am very impressed with the customer service at Sandy Lake. It's refreshing to be really assisted with questions, and have a business who takes time and effort to help a novice out.

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1951 CA, 1952 CA with cultivator, 20 Series 8' disc harrow, 2 bottom pick-up plow, forage blower, 2-row rear mounted drill corn planter, Allcrop grain drill, No. 80T sickle mower, MN No. 130 barge box

Replies:

Posted By: tbran
Date Posted: 10 Apr 2015 at 3:20pm

wood? don't understand - 70330133 is a roller bearing.
BalPAk - We repair the 70330133 if your core is good for $100
If you have wood boxing - you can't use the 330133 ...

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Cernunnos
Date Posted: 10 Apr 2015 at 6:47pm

Thanks for that information. I was misinformed awhile back that the bearings on this disk were wood. This new information makes me feel better. I will PM you for more info.

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1951 CA, 1952 CA with cultivator, 20 Series 8' disc harrow, 2 bottom pick-up plow, forage blower, 2-row rear mounted drill corn planter, Allcrop grain drill, No. 80T sickle mower, MN No. 130 barge box

Posted By: Ray
Date Posted: 12 Apr 2015 at 6:53am

I have several of the bearing no. 70330133 for sale. Good,used,original. 785-353-2392 Thanks

Posted By: Ajstev1@gmail.com
Date Posted: 08 Jun 2017 at 7:45pm

Looking to get bearings replace how long of a turn around is it to repack

Posted By: Mikez
Date Posted: 08 Jun 2017 at 10:23pm

Wear abouts in New York are you

Posted By: CrestonM
Date Posted: 08 Jun 2017 at 11:24pm

Don't mean to hijack the thread, but I have a 20 series disc for a CA, and I was wondering if they use a certain type of disc blade, or are they universal? If they are Allis specific, does anyone have 4 they could spare?

Thanks

Posted By: Ajstev1@gmail.com
Date Posted: 09 Jun 2017 at 5:48am

Rochester

Posted By: Mikez
Date Posted: 09 Jun 2017 at 10:51pm

Oh ok wrong side of the state.
Welcome to the forum