Power disipation in the motor is not the limiting factor. Moving a robot requires work and the motor provides that work with a high eficiency already. Plus, cr

Power disipation in the motor is not the limiting factor. Moving a robot requires work and the motor provides that work with a high eficiency already. Plus, cryo temps require a lot of power to keep thing cool and coper and iron embrittle so the forces acting on the winding could shatter them.