一種特殊的單列或多列滾子軸承,剛性或自調心,並採用內螺紋、空心、梅花螺紋或實心軸構造。
contact bearing seal type, 0.3120 inches minimum and 0.3125 inches maximum bore diameter, 0.6820 inches minimum and 0.6870 inches maximum inner ring width, self-aligning alignment type, 2.1600 inches nominal length from bore center to shank end