We balanced the part within tolerance, but the vibration during assembly is high. What is the reason?

Despite balancing the part within tolerances, there could be several root causes for high vibration after assembly. This doesn't mean the balancing process was unsuccessful; rather, it indicates that the source of the problem lies outside the balancing process. Dynamic balancing addresses the internal mass imbalance of the part, but other components or incorrect assembly methods used during assembly can directly affect the vibration level of the final system. One of the most common causes is the use of poor-quality or worn bearings. Even the slightest damage or backlash in the bearings can lead to irregular rotation and significant vibrations during rotation. These vibrations are mechanical vibrations that cannot be eliminated by balancing.

Another important reason is that the adapters or couplings used in assembly are out of tolerance. Geometric differences between the adapters used in the balancing machine and the adapters used in the final system can cause the part to rotate smoothly in the machine but off-center during assembly. This invalidates the balancing process. At MBS Balans Sanayi, we always recommend our customers use high-quality adapters manufactured to precise tolerances and perform assembly operations with the utmost care. Remember, the performance of the final product depends not only on the balance of a single component but also on the fit and quality of the entire system. Therefore, it's important to carefully inspect bearings, adapters, and other assembly components when experiencing high vibration.