Originally Posted by
ARGOJIM
Do the sprockets move Scott?
If so sand the heck out of the axle that is exposed, then blast everything good after you get the collars off. Recently i did an attex that the sprockets were stuck on so i drove them in, so in your case drive them in past bearing rusted section and remove rust/sand and then drive them out. You would probably want to sand outside of machine also so they don't stick further. If the sprockets are stuck using split collars to make up gap can achieve the same since axles have flanges and can't go out the other side.