This paper describes the final design of the new 5 MN•m torque standard machine which is currently under installation at PTB in Germany. The machine can generate additional components for multi-component investigations and it is capable of applying -to a certain degree -dynamic torques. In the future, it can be extended to a maximum torque capacity of 20 MN•m.

A hinge measurement flexure calibration set-up for stiffness measurements has been built at the Physikalisch-Technische Bundesanstalt (PTB) to estimate parasitic loads on PTB's 5 MN•m torque standard machine (TSM). This paper describes the improvements made to a measurement flexure calibration set-up made since its first presentation. The list of measurement uncertainty influences is refined. Initial results of a combined transversal force and bending and torque moment stiffness measurement are presented and compared to a previous finite element analysis.