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。
0.5600 inches minimum and 0.5700 inches maximum outer ring width, 0.3750 inches minimum and 0.3765 inches maximum bore diameter, rigid alignment type, 1.7900 inches minimum and 1.8100 inches maximum overall outside diameter, 0.6200 inches minimum and 0.6250 inches maximum inner ring width