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。
2.1865 inches minimum and 2.1875 inches maximum bore diameter, 6.0000 inches nominal bolt circle diameter, one end collar location, 2.4062 inches nominal assembly overall length, pivot assembly;seawolf class end item identification