一種單排或多排減摩軸承,帶或不帶內圈或外圈,其特點是滾輪尺寸相對較小,直徑通常不超過 0.250 英吋(6.35 毫米),長度通常比直徑長。
swivel gear joint assy,seawolf class ssn end item identification, 3.0006 inches minimum and 3.0020 inches maximum bore diameter, 0.7400 inches minimum and 0.7500 inches maximum overall width, 3.5050 inches minimum and 3.5070 inches maximum overall outside diameter, separable rollers, closed end, drawn shell style designator