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。
1.7450 inches minimum and 1.7500 inches maximum outer ring width, 1.8025 inches minimum and 1.8175 inches maximum inner ring width, 2.9990 inches minimum and 3.0000 inches maximum overall outside diameter, rigid alignment type, 0.9995 inches minimum and 1.0001 inches maximum bore diameter