DC geared motor in the electromechanical industry is more common micro gear motor, but for performance and material geared motors understand how manufacturers should not be too much and the choice of materials and other more specialized knowledge is not able to understand a couple of days, mainly from: consider magnetic properties, consider the various gear motors hedge piece core permeability cold rolling direction and uniformity, consider gearmotors core flux density level, considering the size of the core loss aspects and other aspects, but for high-tech overseas reducer on the choice of material structures design, understanding is not deep, so the above are made in some knowledge of DC gear motors. 1, gear motor with international technical requirements of manufacturing, high technology content. 2, space-saving, reliable and durable to withstand high overload capacity, power up to 95KW or more. 3, low energy consumption, superior performance, speed reducer efficiency up to 95%. 4, small vibration, low noise, high energy, high quality section steel, steel cast iron box, the gear surface after high-frequency heat treatment. 5, precision machined to ensure positioning accuracy, all this constitutes a gear assembly of gear motors of various types of motors configured to form a mechanical and electrical integration, fully guaranteed product quality characteristics. 6, the product only with the series, modular design, a wide range of adaptability, the product has an extremely multi-motor combination, the installation location and structure of the program, according to the actual need to select any speed and a variety of structural forms.