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Machine tool FAG bearing material requirements  

2012-09-10 11:33:58|  分类: 技术 |  标签: |举报 |字号 订阅

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由于机床FAG轴承高精度、高速、高可靠性要求,在材料上有一些特殊要求,套圈材料多选用优质精炼钢,国外有特殊专用钢。保持架材料有铜、塑料、专用自润滑材料。滚动体有FAG轴承钢、陶瓷材料。作为一种新材料,陶瓷材料在滚动轴承中的应用开辟了机床FAG轴承材料的新天地。陶瓷材料的应用突破了传统钢轴承的许多应用极限,如高速性、耐磨性、绝缘性、耐温性。常用的氮化硅陶瓷比重仅仅是钢的1/3多,因此在高速下引起的滚动体对套圈的应力水平大大降低,同尺寸的机床FAG轴承极限转速大幅提升;氮化硅陶瓷的硬度达1500HV,是轴承钢的一倍,耐高温达1200℃是轴承钢的6倍,这些无疑扩展了传统钢制FAG轴承的使用范围。因此,可以说,陶瓷材料的应用是滚动轴承材料的一次革命,陶瓷材料FAG轴承是面向21世纪的最具发展前景的新材料机床FAG轴承。

Due to the high accuracy of machine tool FAG bearings, high speed, high reliability requirements, you have some special requirements on the material, material using high quality refined steel rings, special special-purpose steel abroad. Cage materials: copper, plastic, special self lubricating material. Rolling FAG bearing steel, ceramic materials. As a new material, ceramic material application in rolling bearing open new world of FAG bearings for machine tools. Applications of ceramic materials break the traditional application of steel bearing many of the limits, such as high-speed, wear resistance, insulation resistance, temperature resistance. Common of nitride Silicon ceramic share just is steel of one-third more, therefore in high-speed Xia caused of scroll body on rings of stress level greatly reduced, with size of machine FAG bearing limit speed sharply upgrade; nitride Silicon ceramic of hardness up 1500HV, is bearing steel of 1 time times, resistance high temperature up 1200 ℃ is bearing steel of 6 times times, these undoubtedly extended has traditional steel system FAG bearing of using range. Therefore, it can be said that applications of ceramic materials is a revolution in material of rolling bearings, FAG bearings of ceramics is the most promising new materials of the 21st century-oriented machine tool FAG bearings.

 

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