3 ms·And weirdly enough making high quality ball bearings.by JamesBarney 4y agoAnd weirdly enough making high quality ball bearings.lovemenot 4y agoI heard that the pachinko industry got its head start from the post-war surplus production of ball bearings. Perhaps the quality you mention is now feasible as a result of the scale economics from pachinko ball production.loeg 4y agoYep: NSK, NTN.