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。
2.1253 inches minimum and 2.1258 inches maximum bore diameter, 2.4950 inches nominal overall outside diameter, lips turned inwardly bearing seal type, rigid alignment type, 0.9900 inches minimum and 1.0000 inches maximum overall width