Patent ID: 8531081

Claim:
A method for producing a rotor assembly ( 12 ) for a rotating electrical machine, the rotor assembly comprising two rotors ( 20 ; 22 ) defining between themselves at least one inter-rotor space ( 28 ) suitable for accommodating at least one magnet structure ( 30 ) comprising at least one index mark, the method comprising the following step: positioning the magnet structure ( 30 ) against at least one of the rotors, using the index mark ( 75 ) to identify a direction of orientation of the magnetization of the magnet structure; the at least one magnet structure ( 30 ) having a side face ( 72 , 73 ) facing a claw of the at least one of the rotors ( 20 ; 22 ) when positioned against the at least one of the rotors; the at least one index mark ( 75 ) being formed on a surface of the at least one magnet structure ( 30 ) other than the side face ( 72 , 73 ) thereof so as to be visible when the at least one magnet structure is assembled in the inter-rotor space of the rotor assembly ( 12 ) against the at least one of the rotors.