The code of Bearing insert UC204 with set screw is UC200 series (light series), UC300 series (heavy series) and UB (sb) 200 series. If the application environment is small, UC200 series is usually selected on the applications,, otherwise uc300 series is selected. Generally, there are two jackscrews on the spherical surface ball bearing, with an included angle of 120 °. The characteristic is that the jackscrew is used to Jack the shaft when cooperating with the shaft, and then it has a fixed effect. However, the cooperation environment needs to have a small oscillation scale. It is widely used in textile machinery, ceramic machinery and other manufacturing industries.

Insert ball bearings are preferred for applications requiring simple equipment and components, such as agricultural machinery, transportation systems, or construction machinery.

It is mainly used to bear the combined radial and axial load mainly based on the radial load. Generally, it is not suitable to bear the axial load alone. This kind of bearing can be installed with inner ring (with full set of rollers and retainers) and outer ring respectively. This kind of bearing does not allow the shaft to tilt relative to the shell, and will generate additional axial force under the radial load. The axial clearance of this kind of bearing has a great influence on the normal operation of the bearing. When the axial clearance is too small, the temperature rise is high; when the axial clearance is large, the bearing is easy to be damaged. Therefore, special attention shall be paid to adjusting the axial clearance of the bearing during installation and operation, and pre interference installation can be conducted if necessary to increase the rigidity of the bearing.