Rothe Erde Slewing Ring Bearing

Slewing bearing is a new type of mechanical parts that has gradually emerged in the world for nearly forty years. It has inner and outer rings and rolling elements. At present, the slewing bearings produced by China's stereotypes are mainly designated by the Ministry of Machinery Industry in the early 1980s. The Institute of Machinery organized the introduction of the design and manufacturing technology of the former Federal Republic of Germany Rothe Erde. On December 20, 1984, the Ministry of Machinery Industry of the People's Republic of China published the standard: JB/2300-84 "Slewing Bearing Type, Basic Parameters and Technical Requirements", which was mainly undertaken by Tianjin Engineering Machinery Research Institute and Xuzhou Slewing Bearing Factory of Ministry of Machinery and Electronics Industry. Drafted, and later the country released the construction machinery standard in 1991: JB36.1-36.3-91. In 1999 and 2011, it released new mechanical industry standards JB/2300-1999 and JB/2300-2011.