I've got a 4-1/8" jointer, branded Sears, made by AMT. Probably early 80s.
The bearing were shot, and I was able to pull them well enough, but I don't know enough to buy replacements. I figured there would be a number on the bearing itself, but they are totally without markings. (Oddly there is also no serial number for the machine itself. The model number is stamped on the plate, but the serial space is blank.)
The bearings are sealed, 1/2" I.D., 1-1/8" O.D.
I've tracked down an owner's manual, but it doesn't have those specs.
Sears and other replacement sellers list the part as "no longer available" but that must just mean the machine is no longer serviced. It seems like it must be a standard ball bearing.
Do I need anything very special on this little machine?