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Unread 29-10-2011, 20:01
Trent B Trent B is offline
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AKA: Trent Borman
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Re: High Tensile Sprocket Bolts

Inherently by using spaces you are cantilevering the bolts which extends the amount of shear stress it is feeling. I would go with adams earlier part suggestion of a hex shaped nut that can screw onto the bolt in fit in the placation wheel holes, thus the bolts will be rigidly held relative to the wheel hub and have extra support (via the nut) for the period they extend beyond the surface of the plaction wheel.

Shearing is greatly related to the amplitude of stress, if you can see concentric semi circles that all seem to be surrounding one point on an edge of the sheared face and expanding as they cross the face it was likely fatigue failure.

Steel bolts, if below their fatigue limit should never fail due to fatigue, if you notice a fatigue pattern (you can find pictures online) you need to reduce the load you are putting on the bolts through some means.
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Former 2502 (Talon) Captain and 3928 (Neutrino) Mentor, currently teamless and attending Penn State for graduate school.
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