UCFC bearing bearings consist of a closed series ball bearing housed in a spherical flange. Due to the bearing's spherical outer surface, shaft deviation can be compensated. Bearings are manufactured with additional tolerances. This results in transitions or press joints when using a tolerant shaft. On the inner bearing is attached a screw to fix the shaft.
In conventional applications, the bearing bearings do not require maintenance due to their lifetime lubrication. In difficult environmental conditions, re-lubrication can be performed on the grease knob.