Not sure about the roller but its probably the same since '05. I'm at 200 hrs and have had no problems.
I would not just pop out seals. If your going to use what you have, I'd remove the seals and clean out all grease, so its like a new open bearing. Also, make absolutely sure that the oil holes in the cases exist and are open.
I'd just get the proper open stuff and install that. The roller is rated at a higher load than the ball bearing. You could also look into ceramics or hybrid ceramics, the guy I get bearings from is big into this now. Nice thing about ceramics is they require much less lubricatiion and are more heat tolerant, which would make them less prone to seizure should something go wrong, like jetting, air leak, etc.
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