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。
1.9400 inches minimum and 2.0000 inches maximum bore diameter, 0.0700 inches nominal flange thickness, 2.8700 inches nominal bolt circle diameter, 3.2700 inches minimum and 3.2900 inches maximum housing diameter, 3.2700 inches minimum and 3.2900 inches maximum overall outside diameter