fang
Seasoned Member
Posts: 100
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Post by fang on Dec 11, 2013 17:52:08 GMT
Can anyone tell me what diameter the winding drum flanges (or overall diameter of the drum assembly) are (approx all the same?  ) on the various John Hainings Fowler ploughing engines?? Thanks |
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Post by fostergp6nhp on Dec 11, 2013 21:27:55 GMT
10 5/8" OD on a 2" class V.
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Post by Jo on Dec 12, 2013 13:56:39 GMT
Hanning's BB1 and Superbas are also both 10 5/8"
(Full size they were: 5' 4" = 10.66" true to scale)
Jo
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jasonb
Elder Statesman
Posts: 1,209
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Post by jasonb on Dec 14, 2013 21:14:54 GMT
Are you sure Jo
On the Z7, Z7S and Superba the lower flange is 10 3/4 and the upper which incorporates the gear is 11 5/8" OD
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Post by fostergp6nhp on Dec 15, 2013 20:52:33 GMT
The gear is bolted on for the class V and i believe that the BB/BB1 use the same drum.
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Post by Jo on Dec 16, 2013 11:34:15 GMT
Jason: He asked about the drum, which on my original Fowler BB1 drawing shows the same size flange top and bottom. The top flange being integral to the gear but making it a devil to cut.
The gears that bolt on to the drum are different sizes/tooth count on the various engine.
Jo
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fang
Seasoned Member
Posts: 100
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Post by fang on Dec 16, 2013 20:43:07 GMT
Many thanks for the replies. It was actually the gear I was most interested in, as I had assumed, as mentioned, that this was an integral part of the drum. I did not realise the models had a seperate gear bolted on!!!
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Post by fostergp6nhp on Dec 16, 2013 22:44:46 GMT
In the class V articals it says at one point that it is bolted on and also in the same series that it is integral with dummy bolts fitted! But the gear is 96 teeth x 8 DP. OD is 12.25".
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jasonb
Elder Statesman
Posts: 1,209
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Post by jasonb on Dec 17, 2013 7:41:40 GMT
I got the impression Fang wanted to know the largest diameter he would have to turn and he did ask about all hainings ploughing engines.
One thing with the separate ring gears is they are very thin and could be a difficult thing to hold if you are going to avoid distortion
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fang
Seasoned Member
Posts: 100
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Post by fang on Mar 7, 2014 20:40:21 GMT
Is the winding drum the largest gear on a ploughing engine?? Or is the gear wheel attached to the rear wheel larger in dia?? I'm wanting to find out the largest diameter gear I will need to cut on a traction engine!!
Thanks again
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Post by fostergp6nhp on Mar 8, 2014 10:01:08 GMT
10"OD 78t 8dp final drive.
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Post by suctionhose on Mar 16, 2015 21:51:10 GMT
Is the winding drum the largest gear on a ploughing engine?? Or is the gear wheel attached to the rear wheel larger in dia?? I'm wanting to find out the largest diameter gear I will need to cut on a traction engine!! Thanks again Winding drum on a PE |
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) on the various John Hainings Fowler ploughing engines??
