The outer spherical ball bearing is actually a variant of deep groove ball bearing, characterized by its outer ring outer diameter surface is spherical, which can be fitted into the corresponding concave spherical bearing seat to play a role of self-aligning. The outer spherical bearing is mainly used to bear the combined radial and axial loads mainly in the radial load, generally not suitable to bear the axial load alone.
Although its basic performance and deep groove ball bearing should be similar, but because this kind of bearing is mostly used in rough machinery, the installation positioning is not accurate, the axis of the shaft and the seat hole is neutral, or the shaft is long and the deflection is large, and the bearing itself is not high enough, some structures are rough, Therefore, the actual performance of deep groove ball bearings with the same specifications should be significantly discounted. For example, the outer spherical ball bearing with top wire is applied to the through shaft with large stiffness difference and deflection. This kind of bearing has sealing rings on both sides, which can strictly prevent the invasion of dirt and has been filled before leaving the factory