兩個單列環形球軸承,尺寸經選定,組成匹配對或匹配組。軸承套圈表面經過特殊研磨,達到規定的偏置量,安裝時可產生預定的預緊力。可能包含一個單列角接觸軸承,軸承套圈表面經過特殊研磨,適合雙列安裝。
mil-g-18709 mil spec single material response lubrication material document and classification, angular load direction, 1.6335 inches minimum and 1.6535 inches maximum overall width, 2.1652 inches minimum and 2.1654 inches maximum bore diameter, standard internal fit-up designation