回转支承，是一种能够承受综合载荷的大型轴承，可以同时承受较大的轴向、径向负荷和倾覆力矩。回转支承轴承一般带有安装孔、内齿轮或外齿轮、润滑油孔和密封装置，因而能使主机设计结构紧凑，引导简便，维护容易。
回转支承应用广泛，工程机械是回转支承**初应用也是应用**广泛的地方，如土方机械、挖掘机、解体机、堆取料机、平地机、压路机、强夯机、凿岩机械、掘进机等

232.20.0400.013Typ           21/520.2232.20.0500.013Typ  21/650.2232.20.0600.013Typ   21/750.2232.20.0700.013Typ  21/850.2232.20.0800.013Typ   21/950.2232.20.0900.013Typ  21/1050.2232.20.1000.013Typ  21/1200.2231.20.0400.013Typ      21/520.1231.20.0500.013Typ   21/650.1231.20.0600.013Typ  21/750.1231.20.0700.013Typ   21/850.1231.20.0800.013Typ 21/950.1231.20.0900.013Typ   21/1050.1231.20.1000.013Typ 21/1200.1
230.20.0400.013Typ           21/520.0230.20.0500.013Typ  21/650.0230.20.0600.013Typ   21/750.0230.20.0700.013Typ 21/850.0230.20.0800.013Typ   21/950.0230.20.0900.013Typ  21/1050.0230.20.1000.013Typ  21/1200.0250.14.0300.013Typ 13/400250.14.0400.013Typ     13/500250.15.0300.013Typ    13/400250.15.0400.013Typ     13/500250.15.0375.013Typ 13/400250.15.0475.013Typ     13/500230.20.0400.503Typ    21/520.0230.20.0500.503Typ 21/650.0230.20.0600.503Typ 21/750.0230.20.0700.503Typ   21/850.0230.20.0800.503Typ  21/950.0230.20.0900.503Typ 21/1050.0230.20.1000.503Typ 21/1200.0
231.20.0400.503Typ           21/520.1231.20.0500.503Typ  21/650.1231.20.0600.503Typ   21/750.1231.20.0700.503Typ 21/850.1231.20.0800.503Typ   21/950.1231.20.0900.503Typ  21/1050.1231.20.1000.503Typ  21/1200.1232.20.0400.503Typ 21/520.2232.20.0500.503Typ   21/650.2232.20.0600.503Typ  21/750.2232.20.0700.503Typ 21/850.2232.20.0800.503Typ   21/950.2232.20.0900.503Typ   21/1050.2232.20.1000.503Typ  21/1200.2230.21.0475.013Typ 21/520.0230.21.0575.013Typ   21/650.0230.21.0675.013Typ   21/750.0230.21.0775.013Typ  21/850.0230.21.0875.013Typ   21/950.0230.21.0975.013Typ  21/1050.0230.21.1075.013Typ  21/1200.0231.21.0475.013Typ           21/520.1231.21.0575.013Typ   21/650.1231.21.0675.013Typ  21/750.1231.21.0775.013Typ   21/850.1231.21.0875.013Typ   21/950.1231.21.0975.013Typ