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Author: Subject: Kinda transmission question
scutter

posted on 16/2/05 at 10:45 PM Reply With Quote
Kinda transmission question

Having recently got hold off a C***rh*m 90 deg gearbox for my speedo drive, Would anyone be able to tell me the thread of the output form the following info,

26TPI with a 18.5-19mm Dia.

Bet this bugger stumps you lot.

ATB Dan.

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NS Dev

posted on 16/2/05 at 10:55 PM Reply With Quote
Well, you asked for an answer, but you'll think I'm crazy!

I can only think it must be 3/4"by 26 tpi, (to state the obvious for a start!) and the only thread that has this dimension is, wait for it................................3/4" BSC (British Standard Cycle thread!)

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DEAN C.

posted on 16/2/05 at 10:58 PM Reply With Quote
Bloody hell.your Zeus book must be even older than mine!





Once I've finished a project why do I start another?

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NS Dev

posted on 16/2/05 at 11:11 PM Reply With Quote
I've lost mine!!!

I guessed 3/4" UNF, then realised that was far too coarse, but was the finest "normal" thread I knew of, then I remembered the trusty BSC threads, which use 26tpi across loads of diameters, so I did a quick net search and hey presto!

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niceperson709

posted on 17/2/05 at 04:51 AM Reply With Quote
You may be able to find something to adapt in a bicycle shop as this thread is still used on pushies .
best wishes
Iain





Best wishes IAIN
life is not the rehearsal , it's the show so don't sit there thinking about it DO IT NOW
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