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Bolens Walk-Behinds Using Block Chain


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#1 gunstuff1000 ONLINE  

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Posted March 21, 2014 - 02:29 PM

Anyone have any experience with the older bolens walk behinds that use block chain instead of roller chain? Is block chain still available to buy or is it complelty obsolete? I'm getting a bolens that has block chain an it's pretty worn out I'm guessing I will need to replace it so curious if this is even possible or will I just have to make do with what I have.
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#2 KC9KAS OFFLINE  

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Posted March 21, 2014 - 03:36 PM

If I am thinking correctly, and "block chain" is the flat chain like is used on hay elevators, then yes it should be available at any farm implement store.

I googled "block chain" and didn't get anything that was remotely associated with what we are talking about!


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#3 Lauber1 OFFLINE  

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Posted March 21, 2014 - 04:31 PM

im sure he's thinking flat chain, it has another name but I haven't heard it for so long I forgot it.



#4 gunstuff1000 ONLINE  

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Posted March 21, 2014 - 04:52 PM

Here is a picture that shows the chain I'm talking about you will probably have to blow it up to really see it gooimage.jpg

#5 classic ONLINE  

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Posted March 21, 2014 - 05:23 PM

My buddy replaced the flat chain on an old manure spreader twice, so it has to be available. I'll see where he got it and let you know. Someone else may chime in first though.

#6 classic ONLINE  

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Posted March 21, 2014 - 05:33 PM

Try Evans Implement company, they call it square sprocket chain. Is this it? I just blew up the picture of your chain and yours looks different than the chain this pic. It appears that yours is a laminated type.

Attached Thumbnails

  • CB-2701.jpg

Edited by classic, March 21, 2014 - 05:50 PM.


#7 DougT ONLINE  

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Posted March 21, 2014 - 05:54 PM

It's not the flat implement chain. It's more like the antique bicycles used to use. I always called it skip link chain but not sure what the proper termination is. Aaron's probably right on that. That must be a pretty early DJ to still use that chain.


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#8 Lauber1 OFFLINE  

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Posted March 21, 2014 - 06:22 PM

I think that type of chain was called link belt. I've seen it in old ad's, but never in person.


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#9 gunstuff1000 ONLINE  

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Posted March 21, 2014 - 07:19 PM

It's not the flat implement chain. It's more like the antique bicycles used to use. I always called it skip link chain but not sure what the proper termination is. Aaron's probably right on that. That must be a pretty early DJ to still use that chain.

. Doug, I'm just calling it that because that's what Mike has been calling it. I'm pretty new to these really old old tractors The picture is a bolens model HB. The model D I'm getting has the same chain on it would be nice to find a source for chain when I go to restore it would like new chain if possible

#10 Nato77 OFFLINE  

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Posted March 21, 2014 - 08:09 PM

Glad to hear your getting that model D!
I think you might end up having to build a chain like that. Would be very time consuming but doable. Looks like is mainly flat stock.

Next thing is how wore are the sprockets? If the chain is wore the sprockets have to be.

You might want to hunt down some old machinery jockeys. I've seen chain like that on something but can't remember on what it was.
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#11 LPBolens OFFLINE  

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Posted March 21, 2014 - 09:28 PM

Aaron, I am probably wrong about this, but that looks a lot like an older version of what is known as "double-pitch roller chain" Double pitch uses half as many rollers as regular roller chain. Check it out at www.mcmaster.com. The chain they show is not identical, although it looks like the major difference is that where your chain has alternate solid connectors, McMasters has open long  links.


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#12 UncleWillie OFFLINE  

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Posted March 22, 2014 - 12:00 AM

It looks like a Leaf chain with the links in a different order.



#13 Cvans OFFLINE  

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Posted March 22, 2014 - 12:04 AM

 

 

It looks like a Leaf chain with the links in a different order.

Looks like scares chain to me. Very hard to find. 



#14 jdcrawler OFFLINE  

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Posted March 22, 2014 - 09:51 AM

Ive only seen drive chain like that on machinery from back in the 20's and 30's.

How old is that garden tractor, Aaron ?

 

 

This is what the  Double-Pitch Roller Chain looks like That Doug suggested  and is available on line from McMaster-car industrial supply.

 

60815kp1l_zps103f9f24.png

 

 

It comes in pitch length ( A ) of 1", 1-1/4", 1-1/2" & 2".

Roller dia. ( B )   .312 - .400 - .469 & .625.

Roller width ( C )  5/16 - 3/8 - 1/2 & 5/8.

 

d03bchainl_zps3720c837.png


Edited by jdcrawler, March 22, 2014 - 10:07 AM.

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#15 gunstuff1000 ONLINE  

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Posted March 22, 2014 - 01:21 PM

[quote name="jdcrawler" post="432307" timestamp="1395499893"]Ive only seen drive chain like that on machinery from back in the 20's and 30's.
How old is that garden tractor, Aaron ?
 
 
Ray, the tractor pictured is a bolens HB high boy from the 20's. From what I have gathered bolens used that style chain till the early 30's then switched to standard roller chain As soon as I get the tractor I'm getting home I will have to measure up the chain an see if that chain from McMaster Carr is compatible The bolens I'm getting is a model d with the briggs pb engine I think it's from around 1924-1927 somewhere in between there




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