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。
0.8745 inches minimum and 0.8750 inches maximum bore diameter, 0.3650 inches minimum and 0.3750 inches maximum overall width, rigid alignment type, 1.1245 inches minimum and 1.1255 inches maximum overall outside diameter, bearing, needle roller, cage guided part name assigned by controlling agency