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。
2.6767 inches minimum and 2.6772 inches maximum overall outside diameter, 1.5743 inches minimum and 1.5748 inches maximum bore diameter, steel ball material, plastic retainer material, 2.5191 inches minimum and 2.5591 inches maximum overall width