There are four nylon gears that operate the accessorie drives on the Case prep station. A couple of my gears have crumbled and they do offer a replacement set of steel gears. If anybody has this Hornady prep station and has experienced a breakage of one of these gears eBay sells a replacement set of steel gears for 13 bucks. For a while one of my three accessory drives hasn't been operable because it broke I just use the other two. Tonight I was prepping some cases in one of the other gears broke. I took it apart and saw what was happening and ordered me a new set of gears for the prep station which should last a lot longer than the nylon gears which it came out with. Just a bit of trivia if anybody has experienced some breakage there.
