一種組裝單元,由包含單列或多列滾珠軸承的外殼組成,設計用於滿足各種或特定的安裝條件。
3.020 inches minimum and 3.040 inches maximum housing width, radial load capability type, engine model j-52 end item identification, 0.8400 inches nominal bore diameter, standard internal fit-up designation