A lot of big truck “hub assemblies” that are replaced as a unit are still ball bearings. Front of my passat is ball bearings and i have replaced them once or mabey one side twice but its got 400k miles on them. My 49 is still on its originals but it did have low mileage when i bought it. I dont think a lot of those old trucks really drove all that many miles before being replaced or parked indefinitely.
