GWG manufactures large roller and ball bearings with inner diameter from 120mm to 3000mm. In addition to standard products, GWG Bearings can also supply non-standard and modified standard for special application. GWG Bearings have a registered trade mark GWG�, and also provide OEM service. GWG Bearings is ISO9001:2000 registered. GWG Bearings have built quality process control and product traceability system. Many advanced test equipment and tools are available for product qualification and analysis. GWG also invite third party to inspect the quality periodically, such as SGS and AQSIQ. GWG Bearings is established by four factories and three sales offices. They are bearing factory, roller factory, cage factory, forging factory, and sales offices in Dalian, Wuxi and Ningbo. we can control all the processes by ourselves. So we can provide high quality bearings with lowest price.