Founded in 1938, OG and its gear-related technologies continue their growth at an amazing rate. These techonologies and expertise gained over 60 years are used in construction machinery and in many other industrial markets. The axles and planetary gear reducers developed by OG are highly penetrating into the worldwide market. Our development know-how and production engineering for large vehicle power trains are rated as first class as well as our developmental and productive technologies. Powertrains for the large vehicles and automatic tool changers (ATC) used in machine tools, which is able to exchange the tool less than one second , have achieved remarkable success. Our never-ending goal is to meet worldwide needs with our gear-related technologies. This is accomplished by OG's development of superior value-added products through our vast expert engineering and state-of-the-art production equipment.