if you want Better bearing you could always find a local bearing supplier and get 6206 and 6207 bearing but you still need the seal which is special to this range of washing machines . if it is a 30mm shaft it uses smaller bearing and another seal
the gen kit does use a rubber shrouded bearing but i dint think there is a weep hole in the rear drum half so it makes no rael difference
as said before check your spider first and if you go ahead pay careful attention to the wiring harness as they rub on the concrete weights if badly routed
Dave