圆锥滚子轴承内圈滚道我厂过去是使用C620及 C385L型车床一次成型车出的,其主要缺点是容易产生振纹,并致使滚道不易测量准确,产品质量很难达到要求。为了解决这一问题,我们经过反复的分析研究与试验摸索得出的一条结论是:改变原车削方式,实现滚道纵向车削是解决上述缺点的有效途径。而只要对常用的CA7620型液压半自动车床稍加改装便可实现圆锥滚子轴承内圈滚道的纵向车削。经长期来的生产实践证明,在改装后的 CA7620车床上加工出来的圆锥滚子轴承的内圈滚道质量 Tapered Roller Bearings Inner raceway I used to use the factory car C620 and C385L forming a car out of its main drawback is easy to produce vibration and make the raceway is not easy to measure accurately, the product quality is difficult to meet the requirements. In order to solve this problem, we have come to a conclusion after repeated analysis and research and trial and error. It is an effective way to solve the above shortcomings by changing the original turning method and realizing longitudinal turning of the raceway. As long as the common CA7620 hydraulic semi-automatic lathe slightly modified can be achieved tapered roller bearing inner raceway longitudinal turning. After long-term production practice has proved that in the modified CA7620 lathe tapered roller bearings processed out of the inner raceway quality