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20 Aug 2000, 20:32 (Ref:31696)
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#1 | ||
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Racer
Join Date: Jan 2000
Posts: 235
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Here's a shot of an upright from an F1 car taken at Spain this year. Graet photo courtesy of the http://www.F1-photo.com site.
Can anyone tell me what the carbon part attached to the disc bell is for? I've had a close look and if I had to put money on it, would say its for cooling purposes. Another question is why is the wheel-mounting face of the bell so different in colour from the flange attached to the disk?  |
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20 Aug 2000, 20:42 (Ref:31703)
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#2 | |
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Rookie
Join Date: Aug 2000
Posts: 67
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Yes that's what it is for. There's a scoop on the other side that collects air.
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20 Aug 2000, 20:46 (Ref:31706)
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#3 | ||
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Racer
Join Date: Jan 2000
Posts: 235
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I know teams pass cooling air from the collection duct through the hub and to the centre of the disc, but in this case, I can't see how the air gets to the outboard carbon part.
As for the difference in colour, I now see that the finish has worn away from the wheel mounting face. |
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20 Aug 2000, 20:48 (Ref:31707)
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#4 | ||
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Veteran
Join Date: Oct 1999
Posts: 1,512
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I don't wanna come across as a Dufus here, but in the absence of splines or other wheel/shaft location device, couldn't "the carbon part attached to the disc bell" and the fact that "the wheel-mounting face of the bell (is) so different in colour from the flange attached to the disk" be attributed to a wheel location device? What is to stop the wheel turning on the shaft apart from the tightened wheel nut? Isn't the "wheel-mounting face of the bell" a friction-drive kinda thang?
Oh go on... just call me a Dufus!  |
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20 Aug 2000, 20:59 (Ref:31712)
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#5 | ||
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Racer
Join Date: Jan 2000
Posts: 235
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Dufus, for several years now, F1 teams have done away with splines, etc. and instead have installed the drive pegs on the wheels themselves which locate in the large-ish holes on the wheel-mounting face. There are usually only 4 pegs on the front wheels to transmit braking torque and there are many more holes on the hub which means fitment is a lot quicker. Furthermore, in the unlikely event of drive-peg failure (particularly at the rear) the replacement of the wheel fixes the problem.
As Cadillac found out at Sebring this year, if the design of the peg/wheel interface is not done carefully, the method can actually lock the wheels onto the hub, preventing removal. |
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20 Aug 2000, 21:05 (Ref:31714)
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#6 | ||
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Veteran
Join Date: Oct 1999
Posts: 1,512
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Well there ya go.
You earn a new name every day! |
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