The P4 profile roller chain® has become a standard for many crane manufacturers, runs smoothly and with low vibrations due to its tribo-optimized rollers. The P4 underwent a noise test in the exterior grounds of the igus® lab. Various travel speeds up to 13.12 ft/s and various measurement parameters demonstrate that the general noise level is very low, and that the system travels with no vibration. The system has a noise level of 76 dB at 13.12 ft/s.