Maybe not. I'm still surprised that I can't get it to go back together properly - nothing seems sealed, in the usual industrial sense. The seals popped right out and do not seem damaged, the roller and ball bearings are tiny and hard to clean and pack, but not impossible. Just be careful not to lose any balls or rollers, and get them back properly into their cages, and it seems to reassemble correctly. Except it hasn't, so far.