Parts such as the Counter Shaft: Shaft 1, Weight 1, Nut, Hexagon, Screw, Countersunk(4jt) are included in the Tz125 2000 4jt7 Denmark 104jt-100e1 Counter Shaft parts fiche.
The sub assemblies and components that make up this Counter Shaft include this Gear, Balance Wt, the most expensive part.