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。
contact bearing seal type, rigid alignment type, 1.7500 inches nominal overall outside diameter, 1.3750 inches nominal bore diameter, 0.8020 inches minimum and 0.8120 inches maximum overall width