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.
pump, screw p/n snfda940er54u4-w75 onboard 420 ft wagb coast guard vessels end item identification, 6311 jc3 special features