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。
3.9995 inches minimum and 4.0005 inches maximum bore diameter, bearing plain, self-aligning, pivot part name assigned by controlling agency, acft, airlifter c-17a, horizontal and vertical stabilizer pivot end item identification, 6.8755 inches minimum and 6.8758 inches maximum outer member outside diameter