After sorting through 3 sets of wheel bearings, with no luck, finally found the correct, 6303z that fit, bike bandit no luck, z1 no luck, all balls no luck, for some reason, even Kawasaki michrofich is wrong for application, thank god I had one original rear wheel bearing to get a number off of. I still have yet to find the seal, two sets of those wrong also, Its not a morris mag either thank god, hopefully I wont run into this when I get into tearing down the engine, {fingers crossed} never throw away anything untill you have the correct part in hand.
1979 kz 1000 06 katana 750