一種特殊的單列或多列滾珠軸承,剛性或自調心,採用實心或空心軸構造,具有內部或外部螺紋。
0.3120 inches minimum and 0.3125 inches maximum bore diameter, 0.3220 inches minimum and 0.3320 inches maximum outer ring width, 3.3755 inches minimum and 3.4995 inches maximum overall length, 0.4320 inches minimum and 0.4370 inches maximum inner ring width, 2.9380 inches minimum and 3.0620 inches maximum length from bore center to shank end