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  #1  
Old 15-06-15, 23:29
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Richard Harrison
 
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Location: Cullercoats Newcastle Upon Tyne United Kingdom
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Default Carrier sprockets

Hey folks, I am wanting to make some spare sprockets for my carrier, is there a correct CAD file out in our community that I could use to get some cut ?

Also can F type sprockets be used on the later style drums and vice versa ?

Cheers


Richie
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1942 Ford Universal Carrier No.3 MkI*
Lower Hull No. 10131
War Department CT54508 (SOLD)
1944 Ford Universal Carrier MkII* (under restoration).
1944 Morris C8 radio body (under restoration).
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  #2  
Old 16-06-15, 02:27
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Alastair McMurray
 
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Richie,
I have a cad file for a sprocket, however the price was such that getting one sent from Australia seemed cheaper!
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  #3  
Old 16-06-15, 07:20
Michael R. Michael R. is offline
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'F' series sprockets are interchangeable between U.C. Marks.
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Old 16-06-15, 08:22
Arthur Morel Arthur Morel is offline
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Default copy

Quote:
Originally Posted by ajmac View Post
Richie,
I have a cad file for a sprocket, however the price was such that getting one sent from Australia seemed cheaper!
Any charnge of a copy please
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  #5  
Old 16-06-15, 10:53
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Richard Harrison
 
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Likewise !

Alastair what grade steel was required ? I am wondering weather they need to be heat treated etc ?
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__5th Div___46th Div__
1942 Ford Universal Carrier No.3 MkI*
Lower Hull No. 10131
War Department CT54508 (SOLD)
1944 Ford Universal Carrier MkII* (under restoration).
1944 Morris C8 radio body (under restoration).
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  #6  
Old 16-06-15, 11:48
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Alastair McMurray
 
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Not sure, a grade that is flame hardenable as I believe only the teeth are hard with a softer core for toughness. They need to be plasma profiled then final machined on a lathe for the bolt holes, ID, chamfers and tooth profile. I was quoted 175 just for a mild steel profiled blank version to trial on.

This a jpg of the CAD I did, can send you the .dwg file if you like:
Attached Images
File Type: jpg Sprocket_Loyd_Machining.jpg (72.0 KB, 24 views)
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  #7  
Old 16-06-15, 12:23
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Arthur send a private message to Andrew Rowe on this forum about sprockets.
Andrew has previously advertised Australian pattern carrier sprockets for sale on this forum, but I do not know the current situation.

The Australian sprocket would be able to be used on a riveted carrier if one shoulder (they are on both sides of the sprocket) was to be machined (turned) off. The shoulder is about 3 or 4 ml. thick. Removing the shoulder would put the sprocket centre line back in the centre of the track.
Riveted carrier ones have no shoulders.
The pitch and mounting hole pattern are the same between the two types of carriers.
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