Bearings, Grooves, and Airport Wheel Repairs

I guess in 2008, Boeing recommended a change to the bearing. It's some kind of

a bearing that's in that pylon. I guess there's two styles of bearings that are in that,

that pylon. There's one that has a split groove and the newer one that has a solid

groove. I have no idea what that means. Mike, do you know anything

about that? Uh, no. No, I don't know anything

what their grooves and bearings... They're- I know one tends to fall off more than the

other. That's true. Not, not that funny but... I mean,

bearings, I remember taking apart, like, we'd take apart