ZWZ Group has formed three technology research and development platforms including design technology, test technology and processing technology and provide the service which is personalized, more comprehensive with high quality bearing products. ZWZ Group established production base specially for CC-type spherical roller bearing, introduce advanced foreign equipment and provide high-quality spherical roller bearings with precision of P5 and inner diameter of 45mm to outer diameter of 440mm which belong to Heavy, Medium, Light series. They are mainly applied in gearbox, blower, paper machinery, steel machinery, ship machinery, coal mining machinery, electric machinery and other machinery for various fields.