Grinding of bearing inner ring channel the influence law of process parameters on the roundness - bearing knowledge

Article discusses the geometric features of grinding inner ring channel roundness, analyze the influencing factors and internal relations, and to determine factors test of grinding roundness inner ring channel modeling, according to the mixed orthogonal experiment design, the interaction effect between consideration, stepwise regression modeling based on test data, a mathematic model of the grinding roundness relationship between process parameters, and the three dimensional surface intuitively shows the effect of grinding process parameters on the roundness, further analysis mathematical model of roundness some useful conclusions. Roller bearing inner ring channel of roundness is an important quality index, directly affect the work of bearing precision, stability and service life. Grinding is usually semi-finishing and finish machining process with the inner ring channel, roundness of product inner ring channel decisive, inner ring channel of grinding roundness in addition to the grinding technology of depends on the precision and dynamic characteristic, is also closely related with grinding process parameters. The former, has been attention by many scholars, and a lot of research, so as to greatly improve the grinding roundness of inner ring channel. With the improvement of precision grinding process system and the improvement of the dynamic characteristics, grinding process parameters become the main factors influencing the roundness, so the grinding process parameters on the influence law of roundness, to choose a reasonable process parameters, to ensure the bearing grinding roundness of the channel, and then realize the grinding bearing channel parameters optimization, has important significance. Figure 1 is a grinding bearing inner ring channel section contour and the ideal contour error of the actual situation, can be expressed by geometry error