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要把轴承套圈内滚道磨削成一定形状的凸度，砂轮表面就要被修整成单叶双曲面．采用把轴承内圈中心线旋转β角、降低（或升高、平移）砂轮修整器的金刚笔尖和修整砂轮形状三种方法，可以避免用宽砂轮加工多种规格轴承滚道时出现的锥度。
To the bearing raceway raceway grinding into a convex shape, the wheel surface to be trimmed into a single leaf hyperboloid. Three ways to rotate the centerline of the bearing inner ring by β angle to lower (or raise and shift) the diamond tip of the wheel dresser and to shape the wheel can be used to avoid taper when machining a wide range of raceways with a wide wheel.