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从保证滚子链与链轮的啮合角度出发，提出链轮误差项目及其检测方法，并给出测量方法极限误差的计算公式。这对于提高链轮产品质量和保证链传动性能都是有意义的
From the point of view of ensuring the meshing between roller chain and sprocket, a project of sprocket error and its detection method are proposed, and the calculation formula of the limit error of measurement method is given. This is meaningful for improving the product quality of the sprocket and ensuring the chain transmission performance