Boxford change wheel – bore size?

This topic has 5 replies, 3 voices, and was last updated 14 July 2013 at 22:15 by Keith Long.

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14 July 2013 at 08:37 #12156
Keith Long
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@keithlong89920
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14 July 2013 at 08:37 #124520
Keith Long
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@keithlong89920
Hi

Can anyone please advise me what the bore size is on change wheels for the Boxford lathes? I know they are 18dp and I assume 14.5deg.pa, but I can't find the hole size anywhere.

Thank you

Keith
14 July 2013 at 09:07 #124524
Saxalby
Participant
@saxalby
Hi Keith,

Just measured mine and the gear bore is 9/16 inch.
14 July 2013 at 09:09 #124525
Keith Long
Participant
@keithlong89920
Many thanks for that – as far as I'm concerned that's the perfect size – means I can fit them to my lathe which is something totally different!

Keith
14 July 2013 at 21:32 #124575
Robbo
Participant
@robbo
Keith, you are also correct to assume a pa of 14.5 degrees for the changewheels, though some fixed gearing in later models was changed to 20 deg.
14 July 2013 at 22:15 #124579
Keith Long
Participant
@keithlong89920
Thank you for confirming the pa, that really is one of the specifications that's difficult to check – especially by just a visual inspection.
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Boxford change wheel – bore size?

Boxford change wheel – bore size?

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