Abstract: An electric motor includes a motor casing, a stator assembly, a rotor shaft assembly, first and second end bells, respectively, attached to each end of the motor casing, and an electrical inlet in the motor casing for supplying power to the motor. The motor further includes a first bearing assembly housed in the first end bell and a second bearing assembly housed in the second end bell. Both bearing assemblies and support the rotor shaft assembly and seal the interior of the motor casing from moisture. The motor also includes a heat-conductive solid resin that encapsulates the stator assembly.

Abstract: An electric motor includes a motor casing, a stator assembly having wire windings, a shaft, and a rotor. A resin in liquid form is added in a vacuum chamber to the motor casing to surround the wire windings. The resin is added after a number of potting fixtures that restrict the coverage of the resin to the stator assembly are assembled onto the motor casing. The resin cures to form a solid coating encapsulating the wire windings to protect the stator assembly from moisture and contaminants.

Abstract: An electric motor includes a motor casing, a stator assembly, a rotor shaft assembly, first and second end bells, respectively, attached to each end of the motor casing, and an electrical inlet in the motor casing for supplying power to the motor. The motor further includes a first bearing assembly housed in the first end bell and a second bearing assembly housed in the second end bell. Both bearing assemblies and support the rotor shaft assembly and seal the interior of the motor casing from moisture. The motor also includes a heat-conductive solid resin that encapsulates the stator assembly.