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-81937 mil spec single material response lubrication material document and classification, 1.1248 inches minimum and 1.1250 inches maximum overall outside diameter, 0.4998 inches minimum and 0.5000 inches maximum bore diameter, 0.0005 inches minimum radial and 0.0008 inches maximum radial internal clearance, radial load direction