Experience from some 20,000 drive installations, that have been operating the proven SPIROFLEX KJ coupling since 1963, has led to the development of the technologically advanced highly elastic SPIROFLEX KS coupling. The elastic rubber elements were completely optimized, enhancing the coupling's reliability and performance significantly.

The most significant feature of the coupling is its rubber elements' high torsional flexibility. Moreover, the coupling compensates center mismatch, axial as well as angular misalignment, of the shafts and machinery elements to be connected (engines, gearboxes, generators etc) within a predetermined tolerance range.

The coupling is especially suited for use in diesel engine propulsion systems and installations where torsional vibration must be taken into account.

Various rubber hardness grades effectively influence the natural frequencies arising in the respective drive system. SPIROFLEX KS couplings shift reonance (torsional vibration) between the natural frequencies of the driving and driven machines from the operational speed range. Due to their high damping qualities they also reduce the residual vibration amplitude and thus protect the valuable plant. Additionally, the rubber elements isolate structure-borne noise effectively. Sizes KS 100 to KS 370 come with ring elements EJN while sizes KS 390 to KS 530 are fitted with four EJK segments which together form a ring element.