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Russell Duffy wrote:
Anyone want to take a swag at how well this would work?
I'll take a shot. I can WAG with the best of them. Not so good at getting answers right, but I can WAG all day.
10lbs. That is about the weight of a rotor. But you'll be spinning it 3 times as fast, so it'll have 8 times the momentum (momentum is velocity squared, right?). The object is to keep the shaft from speeding up and slowing down, and I think increasing the momentum 8 times would accomplish that well.
other ideas: Have the disc water/laser cut. And you don't need 4130, so have the cutter use whatever steel they have on hand. Have a brake shop turn the disc and balance it, or you might just be able to get a brake rotor that would bolt right into place with little or no modification. The heavy duty Matco rotors I just bought seem to be around those dimensions if memory serves.
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