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Re: Andymark Churros
Quote:
Originally Posted by asid61
It would have to be an absolutely massive wheel (like 8") and cantalievered out 2" from the chassis bearings to have a factor of safety of 2, according to my calculator. And tool steel axles is still overkill. 4140 steel would be my next choie.
Interestingly, the cantaliever only slightly affects the factor of safety.
Of course, if they want to run something lie 24" wheels, then I could see tool steel being a valid choice. But before doing that I would just increase the axle diameter.
EDIT: Actually, is tool steel even capable of taking axle type loads? It might be too brittle.
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Does your calculator include torsion? Or the combined stresses of bending and torsion? Do you make some allowance for the fatigue strength of aluminum?
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