HELLO, I was wondering if anyone had part numbers for the bearings with collars on the ez rake model that fits the estate keeper? I was changing out all of the tines and noticed that the bearings on each end of the tine shaft are a bit worn out. During disassembly I ran into a few problems, first the set screws holding the bearings are stuck solid, some penetrating oil and patience fixed this problem, next was the drive sprocket, it seems to be rusted on and its location between two steel plates leaves me unable to use a puller or even get a good angle on it for some old fashion hammer negotiations! I will work this out eventually but I would like to source the parts so that when this finally breaks free I can reassemble and get back to work. Any help would be greatly appreciated, thanks in advance. Eric.