Electric machines

Claim 1

An electric machine comprising a stator assembly and a rotor supported for rotation interiorly of the stator assembly, said stator assembly including a relatively yielding stator yoke, at least a pair of radially inwardly extending poles having an arcuate configuration at the inner end faces to define a rotor recess conforming to the contour of the rotor to provide a small air gap therebetween, cup-shaped bearing support means adjacent opposite axial ends of the stator assembly and a molding member consisting of a hardening compound for supporting the poles and being formed with arcuate guide surfaces at opposite axial ends for the cup-shaped bearing support means thereby to support the rotor coaxially with respect to the rotor recess defined by the inner faces of the poles, said molding member circumscribing the poles adjacent the radially inner end faces thereof and having arcuate portions at opposite axial ends of the poles of a predetermined configuration defining transversely oriented abutment and aligning faces for said bearing support means, said molding member having portions connecting the arcuate guide portions at opposite ends operable to provide means for interconnecting the laminations of the poles and to guide said field windings.