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。
1.2400 inches minimum and 1.2500 inches maximum overall width, rigid alignment type, 2.0000 inches nominal overall outside diameter, 1.6245 inches minimum and 1.6250 inches maximum bore diameter, steel overall material