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。
copper alloy overall material, actuator hydraulic p/n 9075-39795, flo-tork; nsn 3010-01-488-5496 end item identification, astm b150 assn std single material response or astm b36 assn std single material response overall material document and classification, bearing-rack part name assigned by controlling agency, square all corners corner shape