Electric motor

An electric motor comprising:

• a housing;
• a stator fixed relative to the housing;
• a rotor having a hub portion, a cylindrical portion made of a magnetic material, and a disk portion made of a non-magnetic material, wherein the hub portion has a first end, a second end, and a through hole therethrough;
• a brake assembly fixed relative to the housing and configured to selectively prevent rotation of the rotor, wherein the brake assembly comprises (i) a base that is fixedly attached to the housing, and (ii) a brake housing having a first cylindrical portion and a second cylindrical portion, the second cylindrical portion of the brake housing being concentrically positioned within the first cylindrical portion of the brake housing, wherein the first cylindrical portion and the second cylindrical portion extend axially from the base;
• a first bearing mounted between the first end of the hub portion of the rotor and the disk portion of the rotor;
• and
• a second bearing mounted between the second end of the hub portion of the rotor and the disk portion of the rotor, wherein the first bearing and the second bearing each have an outer diameter that is greater than an inner diameter of the second cylindrical portion of the brake housing, and wherein the first bearing and the second bearing each have an inner diameter that is less than the inner diameter of the second cylindrical portion of the brake housing.