内径具有对称圆锥孔的轴承内圈滚道加工,原来是先将内径磨成圈柱孔,然后以此圈柱孔定位夹紧磨削滚道,再用内外径定位夹紧磨削内径锥孔(图1)。这样的加工方法很难保证滚道对内径的壁厚差。 Diameter with symmetrical tapered bore bearing inner ring raceway processing, the original is the first diameter grind into a circle column hole, and then use this circle hole positioning clamping grinding raceway, and then use the internal and external diameter positioning grinding diameter taper hole (figure 1). This processing method is difficult to guarantee the raceway diameter on the wall thickness difference.