管狀物件,帶或不帶凸緣,旨在減少摩擦,並在平行於孔軸線的表面上承載動載荷。必須具有可見或可檢測的潤滑裝置,或可自潤滑。總長度必須超過外徑的25%或本體週邊平面之間的最短距離,但直管狀(無凸緣或肩部)物體除外,其承載面僅平行於孔軸線。包括分成兩段或多段,且承載圓週角不超過180度(3.141弧度)的物件。另請參閱襯套、套筒;墊片、套筒;以及墊圈(經修改)。不含:銷、空心。
22.0380 inches minimum and 22.0390 inches maximum body inside diameter, 25.4990 inches minimum and 25.5010 inches maximum body outside diameter, square all corners corner shape, 10.0000 inches nominal overall length, lead alloy uns l05120 or lead alloy 190 or lead alloy uns l53620 or lead alloy uns l53585 or lead alloy or tin alloy uns l13890 or tin alloy uns l13910 or tin alloy inner layer material