In this schematic the "Ball" is used most often.
A sample from the products for the Steering Sten (gs750c include: Bolt 10x40, Head,steering Stem, Lace,steering Outer Upr, Nut,steering Stem(25x44x10).
The sub assemblies and components that make up this Steering Sten (gs750c include this Stem,steering, the most expensive part.