Abstract: The expense of canned motor and pump assemblies for use in pumping liquids in systems requiring complete liquid containment is minimized in a construction whereby standard pump constructions may be coupled to a canned motor. The invention contemplates utilizing a NEMA standard JM extended shaft for journaling the motor rotor, which shaft extends into the conventional seal cavity of any one of a variety of different types or sizes of rotary driven pumps to be coupled to the rotor therein without the use of a mechanical seal in the pump seal cavity.