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。
steel overall material, ff-b-171 fed spec all material responses overall material document and classification, motor alternating current end item identification, f.e. bearing size 305 type 1 class b grade 00 class 3 internal fit special features