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Home > General Chat > O/T sprocket ratio help

wolfie

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Somewhere around Swindon

Had a little google time but could not find what i wanted

i have two sprockets linked via chain

I need sprocket A (say 30mm dia) to do one full revolution for sprocket B's half revolution what size will sprocket B be? i would say double size (60mm) but is it really that simple?

Ta

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


Sprocket

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Member #: 965
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Preston On The Brook

2:1

Easier to count teeth *wink*

For example, Large sprocket 24 teeth small sprocket 12 teeth.......obviously tooth profile must be the same otherwise they wont run on the same chain. Number of teeth x pitch will then determine the circumference

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


Carlzilla

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Quarry Bonk

Is this for the toylander? Bmx stuff (if of any use) is around 2.7:1 (mine is 25 to 9) but mountain bike singular rear cogs might work for you, they are used to convert geared rear hubs to single speed with spacers. They are quite small too, http://2.bp.blogspot.com/-T4Gb5KJ58So/T8kZ...00/DSC_0246.jpg

On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper

On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!!

17.213 @ 71mph, 64bhp n/a (Old Engine)


lee.pb

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Lancashire

http://www.baumhydraulics.com/calculators/spk_ratio1.htm

Simples *smiley*

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

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