由兩個以上軸承組成的多軸承組件,用於雙聯安裝。主要用於飛機螺旋槳和旋翼機旋翼葉片。另請參閱球軸承、環形軸承。
stack style designator, 4 angular contact bearings stack arrangement, abec no.7 standard tolerance designation, 1.5000 inches nominal bore diameter, 2.8346 inches nominal overall outside diameter