Replacement gears for an old Roomba 4200/1300 series Brush Deck

These are 3 Gears that stripped in my Roomba Dirt Dog. I have also used them for repairing a Brush Deck in Roomba 4200 Series Discovery. Gear18V2 fits over a ballbearing in the Gearbox, But you could use gear18-withbush as a direct replacement if your gearbox doesn't have the bearing.