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。
3.2494 inches minimum and 3.2500 inches maximum overall outside diameter, rigid alignment type, 1.9995 inches minimum and 2.0000 inches maximum bore diameter, feat criticality code justification, 1.7490 inches minimum and 1.7500 inches maximum overall width