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。
0.5630 inches nominal base length, 0.5000 inches nominal bore diameter, 0.1500 inches nominal base thickness, 2.5000 inches nominal center to center distance between mounting holes along width, dolly and a/c spo end item identification