myford 7 change gear bore size

This topic has 3 replies, 3 voices, and was last updated 10 March 2014 at 16:24 by ega.

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9 March 2014 at 18:17 #146554
rob mod
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@robmod64531
Hello

First post so greetings. I am stripping and rebuilding etc a ML7 and wonder if anyone has ever found change gears with a bore other than 5/8 please, I have some which purport to be suitable but are only 1/2. The only thing I have found is this link which may or may not be correct. and seems to be contrary to every other reference?

http://www.lprtoolmakers.com.au/myford-lathe-back-gears-full-set-enlarge-myford-lathe-back-gears-full-set/

Any help gratefully received

Thanks

Rob
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9 March 2014 at 18:17 #7078
rob mod
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@robmod64531
myford 7
10 March 2014 at 13:58 #146640
Brian Wood
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@brianwood45127
Hello Rob,

Welcome aboard, I hope you find useful information from the forum. There are other threads dealing with rebulds of an ML7 which maybe useful for you, fairly recently listed too.

Genuine Myford gears are 5/8 inch bore and have been since ML4 days in the 1940's as far as I know. I did look at your link and my first thoughr was that the bore size quoted at 1/2 inch may simply be a typo.

Enjoy the project

Brian
10 March 2014 at 16:24 #146649
ega
Participant
@ega
Rob Mod

Just a thought, and I hope I'm not insulting your intelligence – have you checked that the gears you have are the correct diametral pitch and pressure angle? If by chance they aren't, then they clearly aren't suitable.

I recall buying gears from Nottingham and having to lap the nominal 5/8" bore out to fit my Super 7.
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myford 7 change gear bore size

myford 7 change gear bore size

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