Analysis of Grinding Wheel Profile in Feeding-Through Centerless Grinding of Tapered Rolle
Z. B. Gao †, H. Y. Gao ‡
† School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471000, China
‡ School of Mathematics and Statistics, Henan University of Science and Technology, Luoyang 471000, China
ABSTRACT: Conical surface of the tapered roller used in rolling bearing is generally processed by the method of feeding-through centerless grinding. This paper presented theoretical analysis on the grinding wheel profile within this process, and the results show that the linear profile grinding wheel may lead to middle concavity of roller profile after grinding; the ideal profile of grinding wheel, which can avoid the inside concavity of roller profile, is the complex curved profile; the ideal profile curve can be simplified as a hyperbola. The mechanism for linear profile grinding wheel leading to middle concavity of roller profile is: the blade is of limiting effect to tapered roller posture, creating a spatially intersected angle between tapered roller axis and grinding wheel axis, and thus causing middle concavity of roller profile; The larger, the semi-cone angle of roller is, the larger, the concavity degree will be; The larger, the oblique angle of the blade slant to horizontal plane is, the smaller the middle concavity degree will be. The hyperbolic angle of simplified grinding wheel hyperbolic profile equals to the spatial crossing angle between roller axis and grinding wheel axis. the calculation formulars for such hyperbolic angle were deduced.
Keywords : Rolling Bearing; Tapered Roller; Feeding-Through Centerless Grinding; Grinding Wheel Profile; Roller Profile.
 Ma Yaliang, Chen Renzhu. Bearing Manufacturing Technology. Beijing: Tsinghua University Press, 2008．
 Ji Chenglin. Research of Conical Surface Lines Convexity in Grinding Taper Roller by Centerless Grinding Machine．Manufacturing Technology & Machine Tool,2009(9):87-89．
 Wen Shaoying, Xu Shaoren, Wang Youwei et al. Determination of Helical Guide Wheel Angle for Tapered Roller Centerless Grinding Convexity．Bearing, 2012(1):23-24．