If your after bearings ,just take the old bearings or the numbers off them down to your local bearing centre & they should be able to match them with a after market set or a single bearing for you as mine over here in Aust I had no problems getting bearings for my old Troy. As for rotor blades I cut down a set from another brand that was a simalar shape . But drilling the holes took a bit of doing

being made out of Hytensile steel .