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。
2.250 inches nominal base thickness, 3.250 inches nominal center to center distance between mounting holes along width, nsn:4820-01-349-7226 end item identification, 6.000 inches nominal base length, 2.2500 inches nominal bore diameter