一、现行评定方法存在的问题轴承行业乃至与轴承行业有关的其它行业普遍反映轴承特别是钢球的表面粗糙度评定方法不合理,不仅没有从零件功能出发选择合适的评定参数,而且评定方法也不规范,各行其事,致使评定结果能相差一至二大级(GB 1031-68),给行业内的质量评价和行业间的仲裁带来了困难。问题主要表现在以下几方面: First, the existing problems in the assessment method The bearing industry and other industries related to the bearing industry generally reflect the bearing surface, especially steel ball surface roughness assessment method is not reasonable, not only did not choose the appropriate parameters from the part function of the assessment, and assessment methods Non-standard, go its own way, resulting in assessment results can differ from one to two levels (GB 1031-68), to the industry quality evaluation and arbitration between industries has brought difficulties. The problems are mainly manifested in the following aspects: