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, 0.2130 inches minimum and 0.2180 inches maximum outer ring width, 0.7490 inches minimum and 0.7500 inches maximum overall outside diameter, 0.1893 inches minimum and 0.1900 inches maximum bore diameter, 0.3070 inches minimum and 0.3120 inches maximum inner ring width