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。
0.5450 inches minimum and 0.5470 inches maximum bore diameter, 2.7900 inches minimum and 2.8100 inches maximum housing width, 0.2620 inches nominal flange thickness, 0.5820 inches minimum and 0.5920 inches maximum housing length, 2.3000 inches nominal bolt circle diameter