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。
zzzy criticality code justification, ball style designator, steel corrosion resisting overall material, cleaning, packaging, and marking iaw mil-std-1330d reference number differentiating characteristics, 0.6250 inches nominal rolling element diameter