The faults of the flywheel of the press have been tested and analyzed,the data of the flywheel dynamic balance and the vibration acceleration of the support seat of the small belt wheel are analyzed.it is determined that the cause of the flywheel failure is related to a larger bearing clearance or loose bearing fix-ation.It is recommended to disassemble and inspect the flywheel and measure the working clearance of the flywheel support bearing.
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