Universal spindles – or universal joint shafts – are versatile power transmission equipment used not only in the iron and steel field but also in many other industrial sectors (paper mills, recycling plants, conveyors, mines, etc.). GGT universal spindles are built to connect shafts at significant angles, ensuring power transmission even with misalignments of up to 25°. Thanks to precision universal joints at the ends, these shafts smoothly compensate for angular and axial movements, reducing load peaks on motors and gear boxes. GGT universal spindles offer extremely high transmissible torque (up to ~12,000 kNm) and large-diameter flanges (even over 1 metre) to suit large machinery. A range of connection configurations is available (flanges with keys, bolted half-couplings, splined profiles, Hirth couplings, etc.) for the best possible integration with the connected components. Every universal spindle is balanced and treated to minimise vibration and wear, ensuring quiet running, safety and reduced maintenance. These features make GGT universal spindles reliable solutions both for mill plants (finishing areas, transfer lines) and for other heavy plants that require flexibility and robustness in the transmission.