Yeah, MSC or Link do 'em. They're the same for all of the old Yammies that came with loose ball bearings.
Fairly dear at ~$75 for a set, though.
ITs would have come with tapered roller bearings from the factory, so they're a much larger OD (same ID, FWIW).
The Link/MCS part appears to be a mix-and-match set (ie: The inner and the outer started life as two different bearings), which would explain the price.
I've got the measurments written down, just gotta remember to take them into the bearing shop next time I there. They definitely looked at me dumb when I quoted the numbers stamped into the bearings...