A rotor for an electrical machine

The invention relates to a rotor (1) for an electric machine with a rotationally symmetrical, essentially, rotatably mounted magnetizable laminated core (2) and a rotationally rigidly connected to the laminated core (2) connected to the shaft (3) for supporting the sheet stack (2). An improved flux concentration becomes possible, (2) has recesses (6), when the lamination stack, which are designed to be continuous open in the outer peripheral surface and / or inner circumferential surface of the laminated core (2). The invention further relates to a manufacturing method for such a rotor (1).