Patent ID: 8051710

Claim:
A high-speed machine comprising: bearings; a stator; and a high-speed, midlength balanced rotor assembly for rotation about an axis of rotation defining an axially extended, radially concentric, centerline borehole and an array of radially or tangentially distributed, axially extended pockets or slots; and at least one balance correcting weight disposed within said axially extended, radially concentric, centerline borehole and at least one other balance correcting weight disposed within said array of radially or tangentially distributed, axially extended pockets or slots; wherein said at least one balance correcting weight disposed within said axially extended, radially concentric, centerline borehole and at least one other balance correcting weight disposed within said array of radially or tangentially distributed, axially extended pockets or slots are provided to the high-speed, midlength balanced rotor assembly after the bearings and the stator have been added to the high-speed machine.