Geislinger GmbH, a leader in spring steel-couplings
and dampers, has just delivered its biggest and that means the world's
biggest torsional elastic coupling. The coupling has an outer diameter
of 2.8 meters and a weight of 36.3 tonnes. More than 2,000 single parts
were produced in the Geislinger works in Bad St. Leonhard and assembled
in the works in Salzburg.
The coupling is now on its way from Salzburg to Japan where
it will be
built into the drive line of a VLCC tanker (Very Large Crude Oil Tanker)
with an energy saving counter-rotating double propeller.
The coupling transmits half of the 27160 KW engine power at 74 rpm and
in this way protects the gear box, which changes the direction of
rotation for the backwards running propeller. This causes the energy of
the swirling water in the gushing of the propeller to be used and
therefore the degree of effectiveness is increased by about 14%. This
system will have a very good future in a time of increasing energy
Already some 10 years ago three ships with this innovative CRP system
plus Geislinger coupling were supplied from the same shipyard. The ship
owners are completely satisfied with these cargo ships. All these
systems were produced in Japan where now the largest one is to be built.