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.
Koyo ball bearing units are highly accurate and feature excellent load resistance. They are completely sealed, and provided with a relubrication feature. Ball bearing units without a relubrication feature are also available.
