The outer spherical ball bearing is actually a variant of the deep groove ball bearing. Its characteristic is that its outer ring outer diameter surface is a spherical surface, which can be fitted into the corresponding concave spherical surface of the bearing seat to play the role of centering.

Although its basic performance should be similar to that of deep groove ball bearings, because most of these bearings are used in rougher machinery, the installation and positioning are not accurate enough, the axis of the shaft and the seat hole are poorly aligned, or the shaft is long and deflection In the case of large-scale bearings, the accuracy of the bearing itself is not high enough, and some structures are relatively rough, so the actual performance of the deep groove ball bearing of the same specification will be discounted.

The performance of the outer spherical ball bearing with eccentric sleeve and the outer spherical bearing with top wire are basically the same, except that the top wire is not on the inner ring, but on the eccentric sleeve. The inner hole of the tapered outer spherical ball bearing is a tapered hole with a taper of 1:12, which can be directly installed on a tapered shaft or on a shoulderless optical shaft with the aid of a tightening bushing, and the bearing clearance can be fine-tuned.

Outer spherical bearings are preferentially suitable for occasions that require simple equipment and parts, such as agricultural machinery, transportation systems or construction machinery. It is mainly used to bear the combined radial and axial load, which is mainly the radial load. Generally, it is not suitable to bear the axial load alone. This kind of bearing can be installed with the inner ring and the outer ring separately. This kind of bearing does not allow the shaft to be tilted relative to the housing, and additional axial force will be generated when the radial load is used. The size of the axial clearance of this kind of bearing has a great influence on whether the bearing can work normally. When the axial clearance is too small, the temperature rise is higher; when the axial clearance is large, the bearing is easy to be damaged. Therefore, pay special attention to adjusting the axial clearance of the bearing during installation and operation, and pre-interference installation can be used if necessary to increase the rigidity of the bearing.