The term "Shimpo gear box" likely refers to a product or component related to mechanical engineering, specifically gear systems. Shimpo is a company known for manufacturing various types of industrial equipment, including gearboxes. Gearboxes are devices used to transmit power from one component to another while changing the speed, torque, or direction of rotation. Shimpo gearboxes could be used in a wide range of applications, such as in industrial machinery, automation systems, robotics, automotive transmissions, and more. Depending on the specific requirements of the application, Shimpo gearboxes may come in different sizes, gear ratios, configurations, and materials.