Explanation of the main causes of imbalances, such as "uneven mass distribution occurring within the rotating body material"!
"Unbalance" refers to a state where the center of gravity of a rotating body is not aligned with the axis of rotation. When a rotating body is spun in this state, centrifugal force is generated. The main causes of unbalance include "uneven mass distribution within the material of the rotating body." During the manufacturing process, grinding wheels and cast products can experience uneven distribution of abrasive particles or the formation of internal voids, leading to variations in the mass distribution of the rotating body. [Main Causes of Unbalance] ■ Uneven mass distribution within the material of the rotating body - Grinding wheels and cast products can develop uneven distribution of abrasive particles or internal voids during manufacturing, resulting in variations in the mass distribution of the rotating body. ■ Misalignment during the fitting of the rotating body onto the shaft - The hole diameter for fitting the rotating body onto the shaft is not perfectly equal to the shaft diameter, which can cause misalignment from the center of the shaft during the fitting process. *For more details, please refer to the PDF document or feel free to contact us.
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【Other Major Causes】 ■Assembly Tolerance When the Rotating Body is Composed of Multiple Parts - If key grooves or similar features are provided to fix the rotating body to the shaft, or if the rotating body itself is composed of multiple parts, positional deviations due to tolerances may occur during assembly, causing the center of gravity to shift away from the axis center. ■Mass Imbalance Due to Reduction and Wear of Grinding Wheels, End Mills, etc. - Grinding wheels and end mills experience reduction and wear with each use, so even if they are balanced initially, they gradually become unbalanced over time. ■Foreign Object Adhesion to the Impeller - In environments where fans or impellers are used, foreign objects may adhere to the impeller. - Since foreign objects also have weight, a greater amount of adhesion can lead to imbalance. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Omiya Industrial Co., Ltd. manufactures and sells precision measuring instruments, semiconductor and liquid crystal manufacturing-related equipment, and provides maintenance for rotating machinery. Please feel free to contact us if you have any inquiries.
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