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。
steel overall material, rigid alignment type, 1.5050 inches minimum and 1.5100 inches maximum overall width, 3.7492 inches minimum and 3.7500 inches maximum overall outside diameter, 2.4994 inches minimum and 2.5000 inches maximum bore diameter