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。
"ngls-m flat bottom sleeve bearing (tcr012955-03). ngls-m gpk mount, sleeve bearing; aka-socket adapter. dims 3"x10"x3.5" weight 9.5 lbs. made from 1045 steel. zinc phosphate coated and solid film lubicration. 1 through hole 1" from the bottom center for insertion of retaining pin. 12 half moon slots cut 3.25" from top every 15 degrees to receive cam lock.slots allow adjustment of audio assy for operational effectiveness. attachments gpk mount to a-pintle w/o interference to machine gun operations." special features