a device used to connect co-axial shafts for power transmission from one to the other. A coupling may provide either a rigid or a flexible connection; the flexibility may permit misalignment of the connected shafts or provide a torsionally flexible connection, mitigating the effects of shock.
S-Series gearmotors offer helical- before- worm gearing combining durability with power-packed performance in a compact design that requires no motor belts or couplings.