Main shaft

The main shaft transfers the torque from the rotor to the gearbox or, for some direct drive designs, to the generator

Description of Manufacturing Process
Typically forged with mating surfaces turned or milled to final dimensions

Description of Supply Chain
Due to the size of these components, they are typically cast and machined close to the nacelle assembly location

Scottish Opportunity
Relevance to Scottish Supply Chain: Low

Manufacturers are well established and located close to turbine nacelle factories in Germany, Denmark and Spain