A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.
zzzw criticality code justification, annual ball bearing for quiet operation application to submarine usage departure from cited document, annual ball bearing for quiet operation application to submarine usage reference number differentiating characteristics, bearing assembly end item identification