This International Standard specifies the characteristics, boundary dimensions, tolerances, intemal clearances and
permissible loads of inch series, double-row, self-aligning, sealed, heavy duty ball bearings used in airframe
appiications. These Seanngs are full complement (without cage) with a double row of bails. These bearings are
designed to withstana only slow rotations and oscillations under load and are intended for use between fixed and
moving parts of an aircraí? structure and their control surfaces.