Ceramic outer spherical ball bearings are actually a variant of deep groove ball bearings, characterized by a spherical outer diameter surface on its outer ring, which can be fitted into the corresponding concave spherical surface of the bearing seat for centering. Although its basic performance should be similar to that of deep groove ball bearings, this type of bearing is mostly used in relatively rough machinery. So when the installation and positioning of ceramic outer spherical bearings are not sufficient, the axis alignment between the shaft and the seat hole is misaligned, or the shaft is long and the deflection is large, and the accuracy of the bearings themselves is not high enough, some structures are also rough, so the actual performance of the common performance is somewhat lacking compared to deep groove ball bearings of the same specifications.

For example, ceramic outer spherical ball bearings with top screws are applied to shafts with high stiffness and deflection. These bearings have sealing rings on both sides to tightly prevent dirt from entering. They are filled with an appropriate amount of lubricant before leaving the factory and do not need to be cleaned or lubricated before installation. When the top screw on the protruding end of the bearing inner ring is tightened on the shaft, the allowable axial load should not exceed 20% of the rated dynamic load. The performance of the outer spherical ball bearing with eccentric sleeve is basically the same as that of the outer spherical ball bearing with top wire, except that the top wire is not on the inner ring, but on the eccentric sleeve. The inner hole of the conical bore outer spherical ball bearing is a conical bore with a 1:12 taper, which can be directly installed on the conical shaft or installed on the shoulder free optical axis with the help of a tightening sleeve, and the bearing clearance can be adjusted.

As one of the indispensable products in the mechanical industry, the use of ceramic outer spherical bearings has become increasingly widespread. Only in transportation areas can outer spherical bearings be used. It mainly serves to support and reduce friction, so the accuracy and noise of the outer spherical bearing are directly related to the use and service life of the machinery.