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.

The code of Insert ball bearing 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 °.