Ball bearing units consists of pre-lubricated sealed ball bearings and a housing which varies in shape.
They are capable of aligning themselves efficiently using the spherical fitting surface between the bearing and housing, effectively preventing overloads due to misalignment.
Our Koyo branded Ball Bearing Units are highly accurate and feature excellent load resistance. They are completely sealed, and provided with a re-lubrication feature. Ball bearing units without a re-lubrication feature are also available.