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。
oil hole and groove in outer ring special features, 4.2492 inches minimum and 4.2500 inches maximum overall outside diameter, 3.2512 inches minimum and 3.2524 inches maximum bore diameter, rigid alignment type, 1.7450 inches minimum and 1.7500 inches maximum overall width