Couplings are used in almost all industrial fields involving rotational power transmission:
General machinery: pumps, fans, compressors, mixers, conveyors.
Process industries: petrochemicals, pharmaceuticals, food and beverages, water treatment.
Energy and power: generator sets (steam turbines, gas turbines, water turbines, generators), wind turbines.
Transportation: automobiles, ships, locomotives (connections between engines, gearboxes, and drive axles).
Metallurgy and mining: rolling mills, crushers, ball mills, cranes.
Papermaking and printing: large paper machines, printing machinery.
Machine tools and manufacturing: CNC machine tools, machining centers (spindle drives, feed drives).
Precision machinery and automation: robots, servo systems, encoders, small motor drives.