Subjected to high radial load, but also can withstand a certain Axial load. This kind of bearing outer ring raceway is spherical shape, it has Aligning performance, when the shaft is bent or tilted by the force of the center line and leaving the inner.The center line of the outer ring relative tilt of not more than 1 ° 2.5 °, the bearing can still work for aligning ball bearings are cylindrical and conical bore two. Cone Taper-shaped hole in 1:12 or 1:30. In order to strengthen the bearinglubrication. Energy, processing of the bearing outer ring on the tank and the hole three uniform. Self-aligning ball bearings for heavy load and shock load to bear, extensive used in metallurgy, mill, mining, petroleum, paper, cement, virgin Sugar and other industries.