Flexible mechanical coupling CENTAFLEX

for boatsfor shafts

It is a well known problem that diesel engines run very roughly in very low speed range between 500-1000 rpm, and that in marine applications they induce heavy torsional vibrations in the reduction gear, resulting in unacceptable gear clatter. This problem cannot be solved with conventional highly elastic couplings. The solution is a dual stiffness flexible coupling, a coupling which is initially torsionally very soft for low load and a stiffer main coupling for high load. In the first stage for low speeds and low loads the roller coupling acts alone up to a torsional angle of 20 degrees and thereafter, with growing speed, the jaw coupling becomes engaged and then both couplings act together in parallel. Areas of application: Main propulsion drives: - between diesel engine and flange mounted gear, or - between diesel engine and independently mounted gear, if both are rigidly mounted and well aligned. Auxiliary drives with high idling, i.e fire fighting pumps etc.