一種可拆卸組件,軸頸、活塞、樞軸或類似物可在其內或上移動。它用於承載載荷並減少滑動摩擦。它不使用滾動元件。此組件由一個鏜孔精密研磨球(或球面滑動軸承)及其外圈組成。該組件可以是可分離的,也可以是不可分離的。不含:桿端滑動軸承和球面滑動軸承。
0.9792 inches minimum and 0.9842 inches maximum inner member width, 0.7792 inches minimum and 0.7874 inches maximum outer member width, 2.1646 inches minimum and 2.1655 inches maximum outer member outside diameter, 1.3773 inches minimum and 1.3780 inches maximum bore diameter