一種均質球體,由一系列球體構成,構成軸承中的滾動元件,即球(經過改良)。此部件主要用於減輕摩擦。它也可能用於其他用途,例如球式止回閥中的止回部件。不含:止回球;附孔球閥。
door,acft carrier cva 67 end item identification, steel overall material, bearing, ball,double seal part name assigned by controlling agency, ff-b-171, type 111, clb fed spec single material response overall material document and classification