combine chain wear blocks
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=165295
Printed Date: 29 Aug 2025 at 12:51pm
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Topic: combine chain wear blocks
Posted By: Ron(AB)
Subject: combine chain wear blocks
Date Posted: 24 Oct 2019 at 10:08am
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Has any one tried making their own replacements? (I'm looking at my L3) Is there anything special about the wood? It looks like oak? What about hard plastic? Some chains use a steel roller for a tensioner, is there any advantages to wood? |
Replies:
Posted By: Michael V (NM)
Date Posted: 24 Oct 2019 at 10:11am
| My L3 has plastic/nylon,or something like that,,I believe you can get aftermarket roller tensioners, but may be a little more $$.. |
Posted By: plummerscarin
Date Posted: 24 Oct 2019 at 10:19am
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I made a bunch out of oak using my metal bandsaw. The radius is a little too tight for my blade but it will work. They don't seem to last as long. I'm not sure if there is a wax or oil impregnated into the wood or if is a different wood type. My next thought is if it's possible to get wax soaked into the wood for better lubrication and oil these chains more frequently than specified. The new block I used for a pattern did not look like oak to me. |
Posted By: Ray54
Date Posted: 24 Oct 2019 at 11:56am
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I have made some just using a piece of a small of a branch that was well seasoned California Blue Oak. I am sure Gleaner back in the day used what ever was the cheapest the day they built your machine. I worked for a father and stepson that had a 75,78,79,80,82,and 83 MH2's over the years. Some used wood blocks and other came with the roller tensioners. Since those days I have been around a teflon infused plastic that was used on a steel belt as a carrier on the sorting belt in walnut processing. Much better life than wood and it was quieter than wood too. Kind of similar to the plastic cutting boards for food prep but a oiliness you can feel.Depending on cost and if you could a block of it may be the best. But I don't even know the name of it.
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Posted By: CrestonM
Date Posted: 24 Oct 2019 at 11:59am
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I’ve seen both the wood and plastic idler blocks, as well as some replaced with a steel idler pulley. When I make wood blocks, I let them soak in oil until I need them. I don’t know if there’s much to my theory, but it seems as the block heats up during use, the oil kinda wicks up through it, helping lubricate the chain. But maybe it’s all in my head? |
Posted By: allisrutledge
Date Posted: 24 Oct 2019 at 12:10pm
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I made all mine out of UHMW. They do wear good but Delrin would be a better choice. I sawed mine the thickness I needed and then cut them in half. The last onesI left them round and they will give you about 3 wear surfaces. Look in McMaster Carr for the UHMW OR DELRIN. Self lubricating UHMW 3.5 x12 inches is around 40.00 ,DELRIN is 60.00. ------------- Allis Chalmers still exist in my mind and barns |
Posted By: DiyDave
Date Posted: 24 Oct 2019 at 5:35pm
Po folks got po ways, as my grandfather usedta say... I've made many a wear block, in my day! White oak is good, locust better, delrin probably best. And of course, soak in oil, fer a coupla years, if possible! Our submarines, at one time used lignum vitae, about the hardest wood on earth, for shaft bearings, at one time! ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: ac hunter
Date Posted: 24 Oct 2019 at 6:41pm
| I thought the wear blocks used to be made of hard maple impregnated with oil. |
Posted By: Mikez
Date Posted: 24 Oct 2019 at 8:24pm
| What's the part number. Curious if we have any. Thanks |
Posted By: DanWi
Date Posted: 24 Oct 2019 at 10:13pm
| Make sure the grain of the wood runs in line with the chain. If the chain and sprockets are good you shouldn't have that much tension on the return side of a running chain. |
Posted By: darrel in ND
Date Posted: 25 Oct 2019 at 6:59am
| I've made many of them out of high density plastic. Just got some 2 inch thick stuff and cut em with a hole saw. They are round instead of the odd shape. Used as big of a hole saw as I what would fit for the application. Darrel |
Posted By: DiyDave
Date Posted: 25 Oct 2019 at 5:41pm
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Made a mistake, forgot to mention another wood, as good or better than locust, is osage orange (bowd'ark)... ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: Lonn
Date Posted: 29 Oct 2019 at 10:07pm
------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
ac hunter wrote:Posted By: Ron(AB)
Date Posted: 30 Oct 2019 at 12:27am
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I found these: uploads/2163/chain_tightener.pdf" rel="nofollow - chain_tightener.pdf |
Posted By: dawntreader74
Date Posted: 31 Oct 2019 at 12:05am
| the maple works an last the best for me used red maple. |