Ningbo Yirong Electromechanical Technology Co., Ltd. (formerly Ningbo Navigation Instrument Factory founded in 1965) is a professional manufacturer of bearing testing equipment, mainly engaged in the research and development and manufacture of bearing dynamic performance measurement equipment such as bearing vibration, fatigue life, friction torque, etc. .

Yirong Technology is a member unit of the Technical Committee of the China Bearing Industry Association, a vice-chairman unit of the Quality Inspection and Test Technology Professional Committee of the China Bearing Industry Association, a national high-tech enterprise, a director unit of the Ningbo Institute of Automation, and a member of the Ningbo Electronics Industry Association.

Yirong Technology has a corporate engineering center with 4 R&D departments, namely the mechanical structure and transmission R&D department, the precision sliding shaft system R&D department, the electronic circuit and signal theory R&D department, and the electrical control R&D department. The research team includes 2 doctoral degree holders, 3 master degree holders, and 7 bachelor degree holders. Since 2010, it has obtained more than 20 patents for inventions and utility models, and 2 software copyrights. In 2009, he undertook the Zhejiang Province Science and Technology Plan Project "Key Technology Research and Equipment R&D of Bearing Quality Intelligent Testing and Sorting". Yirong Technology has the most advanced level of processing technology for liquid sliding shaft systems for vibrometers in China's bearing industry. At the same time, the copyrighted "Intelligent Recognition Software for Manufacturing Defects of Deep Groove Ball Bearings" is also at a relatively advanced level in China.

The company team has been committed to research and development and innovation, and strive to improve product quality and production efficiency, to create the best cost advantage for customers and grow together with customers.

Yirong technology products have been widely equipped in China's bearing industry, and also equipped in international multinational groups, such as Sweden's SKF Group (SKF), the United States (TIMKEN), Germany's Schaeffler Group (FAG), Japan Synergy ( KYOOO YUSHI) and other large global companies.