Separable tooth tip armature construction

A stator that is to form part of a rotary motor arrangement comprising:

• a multiplicity of laminations joined together to produce a first stack of laminations defining teeth, slots between adjacent teeth, and a yoke section connecting the teeth together,
• coil elements mounted on said teeth so that portions of the coil elements are disposed in at least some of said slots between adjacent teeth, and
• a second stack of laminations fitted onto an inner diameter of the first stack of laminations and fixed in place relative to the first stack to function as tooth tips,
• wherein at least a portion of the second lamination stack has been removed after fixing the second stack in place on the inner diameter of the first lamination stack to leave only a thin layer of the second stack of laminations bridging adjacent teeth defined by said first stack of laminations and form said part of the rotary motor arrangement, and
• wherein the thin layer of material connects only some, and not all, tips of said teeth together.