Block with spherical bearings is the rolling bearing and bearing together a bearing unit. Most of the spherical bearings are made of spherical outer diameter, with a spherical bore bearing seat installed together, the structure of various forms, versatility and interchangeability. At the same time, these bearings are also designed to have a certain self-aligning, easy to install, with a double structure of the seal, can work in harsh environments. Bearing is generally used cast molding. Common seat with vertical seat (P), square seat (F), the boss square seat (FS), the boss round seat (FC), diamond seat (FL), ring seat (C) T). Spherical bearings are common types of the following two: l. Set screws with spherical UC type bearings; 2. Spherical bore with tapered bore UK type bearings. Bearings with spherical bearings are divided into the heart and bearing seat, the bearing is called on the bearing heart bearing the name, such as with set screw spherical bearings UC205 with vertical seat UCP205. With seat spherical bearings due to the strong interchangeability, the bearing core can be freely assembled in the same size and shape of the bearing.