A good drum repair shop can put the drum on a router table and re-cut the bearing edge.
warboy mentioned possibly contacting DFGreg, who works at
Drum Foundry. You can find Greg's contact info on their web site.
I've also known some guys to send their set drums to
Precision Drum for repairs. You could try contacting them (and others) as well.
In the meantime, tell your tenor players to stop hitting the **** shell! Play in your zones, and in control. If you can't control where the sticks are going, you're probably trying to play above your ability level. (And audiences are NOT impressed by hard stuff played like crap.)
By the way, this is why the rim flange on Yamaha tenors is turned inward toward the shell. It helps keep stray sticks and mallets from whacking the bearing edge.