The outer spherical ball bearing is actually a variant of the deep groove ball bearing. Its feature is that the outer diameter surface of its outer ring is spherical, which can be matched into the corresponding concave spherical surface of the bearing seat to play the role of centering. The outer spherical bearing is mainly used to bear the combined radial and axial load, which is mainly radial load. Generally, it is not suitable to bear the axial load alone. Spherical bearings are preferred for applications requiring simple equipment and parts, such as agricultural machinery, transportation systems or construction machinery.
