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flender0619Flender completes its 2017 featured "N-Arpex" coupling and introduces two further expansion stages with eight and ten bolting points. As a result, the coupling series covers a diameter of up to 988 mm and a torque of up to 2.000.000 Nm. Due to the compact design and an enlarged bore capacity, a size jump is also possible.

A smaller clutch transmits a higher torque compared to the predecessor model Arpex. The torsionally rigid all-steel multi-plate clutch is suitable, among other things, for driving pumps, fans, compressors, generators, turbines and paper and printing machines.

Cone screw connection for the plate packs

A new, more compact Flender cone screw connection for the disk packs enables easy and quick mounting of the couplings, especially in the high torque range. It increases the power density of the N-Arpex series. The 2017 with the ARN-6 variant introduced, revised component design with the compact design and an enlarged bore capacity already for an improved ratio of torque and material use.
With the two new N-Arpex couplings, Flender is introducing a kit that increases the number of variants available while at the same time reducing the number of components. The three standard series from its predecessor Arpex merge into a series at N-Arpex.

The new series are also designed for an explosive environment in accordance with the 2014 / 34 / EU directive and meet the requirements of API610 / ISO 13709 and API671 / ISO 10441. N-Arpex all-steel couplings are standard designed for cryogenic temperatures down to -50 ° C. The torque transmission with simultaneous offset compensation between the machines to be connected takes place in the completely made of steel coupling free of play, torsionally rigid and bending elastic. The offset compensation can be done in the axial, angular and radial directions. The disc packs of the N-Arpex couplings are made of stainless spring steel, are not subject to wear and are therefore maintenance-free.

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