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Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
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I suspect what you called "bearing chatter" was actually chain/teeth meshing noises, as in the chain wasn't meshing smoothly. This, if extreme, can explain the chain trying to climb up ("jump off" the teeth and when doing so the chain tend to try to stop moving. "locking up".
So I suspect the chain was too tight, the front ring and rear cog were not coplanar WRT each other, you have a bent tooth or more, or the chain has twisted/snaking links.
But one problem with these speculations is that some can be the result of the incident so without the bike/parts in hand it's real hard to say exactly what went on. What is easy to say is that you should let a more experienced guy do the repairs. Why? Because the chain is a significant part of the brake system. Andy
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AndrewRStewart