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轴径 Shaft Diameter 轴承型号 Bearing Designation 重量 Mass 近似 Approx 外形尺寸 BoundaryDimensions 现型号 CurrentCode 原型号 OriginalCode Fw D C mm g mm 3 K3X5X7TN 0.3 3 5 7 K3X5X9TN 0.4 3 5 9 K3X6X7TN 0.4 3 6 7 4 ...