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。
rigid alignment type, 9.992 millimeters minimum and 10.002 millimeters maximum bore diameter, 21.989 millimeters minimum and 22.002 millimeters maximum overall outside diameter, 19.88 millimeters minimum and 20.00 millimeters maximum overall width, steel overall material