Systems for rotor including composite material

A system comprising a rotor, the rotor including:

• a rotor shaft;
• a lamination stack on the rotor shaft, the lamination stack including:
• a lamination yoke including a recess in an outermost surface of the lamination yoke and a first groove in the outermost surface of the lamination yoke;
• a lamination shoe in the recess of the lamination yoke, the lamination shoe including a second groove in an outermost surface of the lamination shoe;
• and
• one or more first magnets in the recess of the lamination yoke between the lamination yoke and the lamination shoe, each first magnet of the one or more first magnets including a first magnet groove, wherein the first groove of the lamination yoke, the second groove of the lamination shoe, and the first magnet groove are aligned along a first circumference of the lamination stack as a first lamination stack groove;
• and
• a first carbon ring in the first lamination stack groove.

A system comprising a rotor, the rotor including:

• a rotor shaft;
• a lamination stack including a first lamination sheet, a second lamination sheet, and one or more magnets, the first lamination sheet and the second lamination sheet on the rotor shaft, and the first lamination sheet having a greater circumference than the second lamination sheet;
• the first lamination sheet including:
• a first lamination yoke including a first recess in an outermost surface of the first lamination yoke;
• and
• a first lamination shoe located in the first recess;
• the second lamination sheet including:
• a second lamination yoke including a second recess in an outermost surface of the second lamination yoke;
• and
• a second lamination shoe located in the second recess;
• the one or more magnets including a first portion and a second portion, the first portion of the one or more magnets having a greater thickness than the second portion of the one or more magnets, the one or more magnets being in the first recess between the first lamination yoke and the first lamination shoe and in the second recess between the second lamination yoke and the second lamination shoe, wherein the first portion of the one or more magnets aligns along a first circumference of the lamination stack with the first lamination sheet and the second portion of the one or more magnets aligns along a second circumference of the lamination stack with the second lamination sheet;
• and
• a carbon ring on the outermost surface of the second lamination yoke, an outermost surface of the second lamination shoe, and an outermost surface of the second portion of the one or more magnets.