NV Dynamics was engaged by M/s. Bosch Jaipur to undertake vibration analysis and in-situ balancing on multiple units of calibration and endurance test benches. Vibration assessments were conducted on the machines at different operating speeds to check the presence of unbalance and other potential issues such as misalignment, looseness etc. If the RMS vibration amplitudes of the tested benches were found to be higher than the acceptable limits of ISO 20816, In-situ balancing was carried out by mass addition or removal.