Encapsulated miniature class H motors a materials system development

Even at this stage of advanced technology it is all too common for design engineers to rely on material manufacturers´ literature and claims, on some experience with a similar material to the one intended for use, and on intuition. The most efficient approach to a successful product, however, is still the scientific one. It is quite necessary to have an understanding of the chemistry and physics of the materials of construction that are considered for a new product or design concept. Assuming that this design concept is broadly established, it now becomes necessary to plan on a systematic materials study designed to meet the clearly stated objective. This paper attempts to describe such a project in the development and perfection of a motor used for a high efficiency vaneaxial fan.