Crank failure modes

[Gasser Nate]

I have never liked those roller bearings, pain in the ass to get off the crank and from my testing don?t last as long as ball bearings. I always replace them with ball bearings when I get the chance even though logic says the rollers should last longer. If it has those sealed type mains I have seen them suck in a gut full of water through their seals and then rust away because the water can’t evaporate out. And that is pretty good hours out of a racer!
But after that bit of info I am wondering where else water made it too?