论文部分内容阅读
随着精密测量技术的发展,对具有精密导轨滚动轴承仪器的直线度提出了更高的要求,这不仅要求导轨具有高精度的直线性,还要求具有高刚性,高精度的滚动轴承。目前,外购C级轴承不仅满足不了精度要求,而且由于外环壁薄,刚性差,也满足不了精密仪器导轨轴承的承载要求。因此,就有必要根据精密仪器的精度要求,设计一种外环加厚的轴承。如我所研制的SZC—543三座标测量机所用的轴承,就是这种特殊规格的高精度轴承,要求径向跳动不大于0.5微米。它有三种不同规格:精25轴承、精35轴承及精50轴承。现在,
With the development of precision measurement technology, higher requirements are placed on the straightness of a precision roller bearing instrument, which not only requires high linearity of the guide rail, but also requires a rolling bearing with high rigidity and precision. At present, C-level outsourcing not only can not meet the accuracy requirements, but also because of the outer ring thin wall, poor rigidity, but also can not meet the bearing requirements of precision instrument guide bearings. Therefore, it is necessary according to the precision requirements of precision instruments, the design of a thick outer ring bearing. As I developed SZC-543 coordinate measuring machine used bearings, is the special specifications of high-precision bearings, radial runout requirements of not more than 0.5 microns. It has three different specifications: fine 25 bearings, precision 35 bearings and precision 50 bearings. just now,