To analyse the influence of grinding wheel unbalance on surface topography of workpiece in centreless grinding,this paper established a mathematical model of system vibration.

• 通过对砂轮、导轮、工件、托板坐标系相互位置的分析,建立了导轮廓形的数学模型,得到圆柱零件无心磨削时导轮廓形的表面特征。