1.1.5 How are the rotors with keyways balanced in the IP23 electric motors?

All standard electric motors, including IP23 motors, have rotors dynamically balanced with a half keyway according to DIN ISO 8821. Drive components such as pulleys, couplings, and pump impellers must also be dynamically balanced with a half keyway. It is essential to ensure that the hub length and the keyway length are identical to prevent any residual imbalance. Full keyway balancing is available upon request.