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#1
15-06-15, 22:29
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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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is mos redintegro __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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#2
16-06-15, 01:27
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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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Alastair Lincoln, UK. Under Restoration: 1944 No2 MK2 Loyd Carrier - Tracked Towing 1944 Ford WOT6 Lorry The Loyd on Facebook
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#3
16-06-15, 06:20
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'F' series sprockets are interchangeable between U.C. Marks.
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#4
16-06-15, 07:22
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copy
Quote:
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Ford F30 under restoration
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#5
16-06-15, 09:53
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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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is mos redintegro __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
16-06-15, 10:48
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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:
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Alastair Lincoln, UK. Under Restoration: 1944 No2 MK2 Loyd Carrier - Tracked Towing 1944 Ford WOT6 Lorry The Loyd on Facebook
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#7
16-06-15, 11:23
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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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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions....
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#8
16-06-15, 23:11
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sprockets
Yes, Lynn, I still have a few available from reserve stocks, Cheers.
And you are correct in what you say about the little shoulder, about 2mm thick, once machined off , a few minutes in a lathe ,end up dimensionally the same as English and Canadian.
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Valentine MkV Covenanter MkIV Lynx MKI and MKII Loyd Carrier / English / Candian / LP. M3 Stuart
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#9
17-06-15, 08:12
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Sprockets
Just to show you the different sprockets in picture form, you can see the raised edge of the LP one, over laid onto the English one.
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Valentine MkV Covenanter MkIV Lynx MKI and MKII Loyd Carrier / English / Candian / LP. M3 Stuart
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#10
17-06-15, 22:10
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Sprockets.
Gents, would it really matter if you didn't machine that shoulder off?, just run them as is?.
Kevin.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008. 3" Mortar Universal Carrier 1943 registered 06/06/2009. 1941 Standard Mk1 stowage Carrier, Caunter camo. 1941 Standard Mk1 stowage Carrier, light stone. 10 cwt wartime mortar trailer. 1943 Mk2 Daimler Dingo. 1943 Willys MB. 1936 Vickers MG carrier No1 Mk1 CMM 985.
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#11
18-06-15, 15:10
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I have sourced a pair of CAN/BRIT ones now, thanks folks.
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is mos redintegro __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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#12
19-06-15, 01:07
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have them laser cut from 4140 no machining required unless you want to throw them on the lath and put some lead in on the sides
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