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。
1.5000 inches nominal outer ring width, 2.1500 inches minimum and 2.1600 inches maximum inner ring width, 1.4060 inches minimum and 1.4070 inches maximum bore diameter, 2.4950 inches minimum and 2.5050 inches maximum overall outside diameter