Abstract: A slotless electric motor provides a ferromagnetic yoke that includes laminations of a ferromagnetic material interspersed with a high thermal conductivity nonferromagnetic material to greatly reduce the thermal resistance of this yoke. A thermally conductive coil form provides heat conduction paths on three sides of the coils to this yoke which may in turn attach to a heatsink providing fins that vary angularly along the axis and radius of the heatsink.