Abstract: Bearing is a widely used basic mechanical parts, its manufacturing technology is an important symbol of the national mechanical manufacturing capacity. Bearing rolling is a continuously partial plastic forming technology, which is an advanced forming manufacturing technology of high quality bearing internationally. On basis of the research foundation of authors in bearing rolling, the status and development of bearing rolling theory and technology are systematically introduced, the forming characteristics of bearing rolling are analyzed; the bearing rolling forming theory are formulated which include the rolling condition and force and energy computational method, and the technology design methods are also represented which include the roller, ring blank, deformation amount and feeding procedure; the research and application of cold and hot bearing rolling forming technology and equipment in China are introduced; the development direction of bearing rolling forming theory and technology are described. Over twenty year’s research and development and production, China has become an important country of bearing rolling.

Key words: bearing;ring rolling;plastic forming;ring rolling theory;ring rolling technology