一種組裝單元,由包含單列或多列滾子軸承的外殼組成,設計用於滿足各種或特定的安裝條件。
0.625 inches nominal base thickness, 4.500 inches nominal center to center distance between mounting holes along width, 2.000 inches nominal height from bottom of base to bore centerline, 5.250 inches nominal housing height, rigid alignment type