Flexible Shaft Couplings for Noise Reduction are capable of absorbing the static and dynamic misalignment which inevitably occurs between two nominally in line rotating shafts. These Flexible Shaft Couplings are flexible and capable of attenuating the torsion oscillations because of the damping characteristics of the spider and the drive inserts. These Flexible Shaft Couplings are fail safe and assist to restrain body resonance and contribute to noise reduction. These Flexible Shaft Couplings for Noise Reduction are strong and last for a long time.