In the development of the new 3-piece, T-shaped band chain "T3", the focus above all was on the high level of noiseless operation. The T3 band chain is particularly flexible and runs "round" due to the special geometry of the side plates. In the igus® laboratory a value of only 33 dB(A) was measured at 1.0 m/s on unsupported lengths for the series T3.29.050.038.0, with a sound level caused by external noises.