Low-shaft, low-profile electric motor

Claim 1

An electric motor having a pair of end bells which carry coaxial bearings for the shaft of the rotor and which are located at opposite ends of a generally annular stator core comprising flatwise stacked laminations upon which there are windings and within which the rotor coaxially turns, said motor being characterized by: A. all of the laminations of the stator core being substantially identical with one another and of such shape that the exterior of the core has opposite flat top and bottom surfaces which are parallel to the rotor axis and to one another, and has other surface portions which are curved on a uniform radius about said axis; B. each of the end bells having uniplanar surface portions normal to said axis that flatwise engage the surface of its adjacent endmost lamination of the core; C. each of the end bells having tongue-like axially inward projections that closely overlie said other surface portions on the core to maintain coaxiality between the core and the end bells; D. each of the end bells having a flat bottom wall, the bottom surface of which is coplanar with said bottom surface on the core; E. each of the end bells having mounting feet projecting laterally to opposite sides thereof, said mounting feet having their bottom surfaces coplanar with said bottom surface on the end bell; and F. means securing each end bell aGainst axially outward and rotational displacement relative to the core.