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Old 21 Jan 2011, 19:40 (Ref:2818958)   #1
JJ68
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Carbon/Carbon Racing clutch

Hi for part of one of my uni assingment i have to spec a clutch. Now i know how to calculate this and have sourced a suitable clutch (AP carbon/carbon 140 Dia) this fits my brief perfectly as the flywheel Dia is 150mm. I have a torque figure, material, number of plates and co-efficent of friction. Therfore i need to calculate the clamping force... however i cant do this until i calculate the mean radius of my clutch friction plate. I know the external Dia, but cant find any info an the internal Dia anywhere?

Does anybody know this figure, or can help me in anyway?

Cheers.
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Old 21 Jan 2011, 21:53 (Ref:2819037)   #2
tristancliffe
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tristancliffe should be qualifying in the top 10 on the gridtristancliffe should be qualifying in the top 10 on the grid
Your flywheel is 150mm overall? A 140mm AP carbon clutch is 166mm in diameter overall - http://www.apracing.com/drawings/cp7142cd.pdf

That shows the inner diameter of the clamping area as 97mm.

therefore a 115mm triple plate clutch might be more useful, with the inner diameter being 85mm - http://www.apracing.com/drawings/cp8153cd.pdf

Hope that helps a bit.
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Old 22 Jan 2011, 13:02 (Ref:2819197)   #3
JJ68
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Thanks TristianCliffe thats very helpful
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