A spherical bearing with a seat is a bearing unit that combines a rolling bearing and a bearing seat. Most outer spherical bearings are made of spherical outer diameter, and are installed together with the bearing housing with spherical inner hole. The structure is diverse, the versatility and interchangeability are good. The same bearing housing can be installed with various types of outer spherical surfaces. Bearings, the same spherical bearing can also be equipped with various types of bearing seats. At the same time, this type of bearing is also self-aligning in design, easy to install, and has a dual-structure sealing device, which is widely used in agricultural machinery, mining equipment, textile machinery, fans, hoists, packaging machinery, fitness equipment, three-dimensional parking equipment , Construction machinery, processing and automation equipment, etc. Bearing seats include cast iron seats, ductile iron seats, steel stamping seats, zinc alloy seats, stainless steel seats and plastic seats.