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。
2.750 inches nominal bolt circle diameter, 0.250 inches nominal flange thickness, 0.625 inches nominal housing length, 2.813 inches nominal housing width, 0.625 inches nominal assembly overall length