I remembered that you had a thread about straw chopper rotor replacement, with pictures. I just hadn't searched for it yet.

I did know you did an upgrade.

I just went to TSR website and looked over some stuff.

http://www.tsrparts.com/straw-choppers-complete-units-fine-chop-for-john-deere-combines.html#AA

Those rotor bearings, have been replaced on our rotor, about 12 years ago, or so. That may help in getting them removed (if necessary). I remember torching them off. I also had to reinforce the side plates with washers, and weld them in place, for the bearing flange holes. (We had bearing failure, at night, with soybeans; Dad couldn't hear it, but I did, when I returned with empty wagon)

Thanks for the photos.