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.
bearing assembly end item identification, annual ball bearing for quiet operation application to submarine usage reference number differentiating characteristics, zzzw criticality code justification, annual ball bearing for quiet operation application to submarine usage departure from cited document