不含滾珠軸承、滑動軸承或滾柱軸承的單件或多件式組件。其設計旨在滿足各種或特定的安裝條件。對於帶有軸承的組件,請參閱滾珠軸承單元;滑動軸承單元;以及滾柱軸承單元。
0.6250 inches minimum and 0.6254 inches maximum bore diameter, 1.2500 inches nominal housing length, 1.3750 inches nominal bolt circle diameter, 0.1250 inches nominal flange thickness, 0.8743 inches minimum and 0.8748 inches maximum housing diameter