Why not contact Wayne directly and pose the question..
Wayne is certainly one of the most informed people that is knowledgible about the A833s..
We have bought many transmissions and parts from Wayne, he is a straight-shooter..

But again if there is no USA manufacturer of the bearing, the Chinese one is likely the only available choice on the supply side..

Kinda like the A833 reverse lite switch, pay $12-20 for the Chinese version or $60-80 for the NOS USA/Canadian one. Our A833s are now almost 50 years old and certain new renewal parts made in the USA are just not commonly available any more..

Just my $0.01..