Jinan Guanyi Transmission Machinery Co., Ltd. (brand OTOTRI) was established in 2019 and specializes in the manufacture and supply of needle roller bearings. The company takes quality, delivery and cost as its operating philosophy, and pursues a strategy of in-house tooling, in-process gauging and export-oriented service. It has developed into a needle roller bearing specialist integrating four capabilities: manufacture, product development, inspection and export trading. The factory covers 12,000 square meters with 180 employees and an annual capacity of 40 million pieces, operating under ISO 9001 and ISO/TS 16949 quality systems, with roundness testers, roughness testers, life test benches and CMM equipment supporting every batch. Products cover drawn cup, machined-ring, cage assembly, thrust, track roller and combined bearings plus axle repair kits, serving automotive, motorcycle, marine engine and industrial machinery customers, and are exported to Germany, Italy, the USA, Brazil and other markets.