一、前言日本精工公司(NSK)密封保洁辊颈轴承于1977年首先使用在日本钢管公司福山厂的冷轧机上。在研究清楚了大部分轧机轴承失效都过早并归因于不良润滑或污染后才研制出这种轴承。辊颈轴承的尺寸和负荷额定值系受到轧辊和轴承座尺寸的限制。轴承的工作条件随轧制速度和负荷的逐渐增加变得越来越恶劣。工作条件还会因轴承座处于大量的轧制液、氧化皮和其他污染物中所恶化。 First, the foreword Seiko Japan (NSK) seal cleaning roller neck bearings first used in 1977 at the Japanese steel company Fukuyama cold rolling mill. It has been developed that most bearings in rolling mills fail prematurely and attributed to poor lubrication or contamination. Roll neck bearing size and load ratings are limited by the size of the roll and housing. Bearing working conditions with the rolling speed and load gradually increased to become more and more poor. Working conditions can also be exacerbated by the large amount of rolling stock, scale and other contaminants in the bearing housings.