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 outer ring material, 0.5015 inches minimum and 0.5025 inches maximum bore diameter, 0.6880 inches nominal overall outside diameter, 0.7400 inches minimum and 0.7500 inches maximum overall width, rigid alignment type