SI is a professional precision bearings manufacturer focusing on high quality and reliability production. Our company is committed to provide one-stop and comprehensive business solution and custom service.

SI,together with Mighty,PPB,its the union promotional company,design and manufacturing high precision transmission products intended for varied industrial sector.The motioned bearing models are widely equipped in vehicles,household appliances,micro motors, sport equipment. They are also installed in wide range of machineries of agriculture,mining, food production, chemical industry and textile. You can find our bearing parts used in all kinds of office equipment, transmission equipment and logistics.The headquarter of marketing and sales of SI is located in Chengdu; our manufacturing sites are in Hangzhou, Yuyao and Cixi, which are the indispensable component to accomplish and controlled a high quality production strategy.

The floor area of our manufacturing site is 50,000 square meters, with total asset value £¤180 million, having over 500 employees and more than 150 qualified professional technicians. GCR15 bearing steel as our products main material, is used in production of Model 60..62.63.64 Deep Groove Ball Bearings, 30.31.32.33 Tapered Roller Bearings, SUV UK NA ER SA SB Radial Inserts Ball Bearing and Housing Units, P  PH  PA  F  FC  FL  FA T  PP  PF  FT  FL varies of cast iron units and stamping bearing units, even kinds of automotive bearings. There is also an outsourcing agreement on a part of products, including the professional quality test undertaken by SI¡¯s qualify control center.

Our values are fundamental to the way we operate and how we develop. ¡°Quality First,Honoring Contracts , Standing by Reputation¡± is our commitments. Warmly welcome your inquiry of business cooperation as well as your visiting and guiding.