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。
qq-b-613 fed spec all material responses overall material document and classification, copper alloy 230 or copper alloy 240 or copper alloy 260 or copper alloy 268 or copper alloy 353 or copper alloy 262 or copper alloy 270 or copper alloy 272 or copper alloy 274 or copper alloy 280 or copper alloy 330 or copper alloy 331 or copper alloy 332 or copper alloy 335 or copper alloy 342 or copper alloy 344 or copper alloy 347 or copper alloy 348 or copper alloy 350 or copper alloy 356 or copper alloy 360 or copper alloy 370 overall material