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。
astm a108 assn std all material responses overall material document and classification, steel comp 1008 or steel comp 1010 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1025 or steel comp 1030 or steel comp 1035 or steel comp 1040 or steel comp 1045 or steel comp 1050 or steel comp 1095 or steel comp 1213 or steel comp 1115 or steel comp 1117 or steel comp 1118 or steel comp 1137 or steel comp 1141 or steel comp 1144 or steel comp 1151 or steel comp 12l14 or steel comp 1211 or steel comp 1212 or steel comp 1215 or steel comp 1330 or steel comp 1548 overall material