FLENDER Standard Couplings Torsionally Rigid All-Steel Couplings — ARPEX ARS-6 Series © Siemens AG 2015 General information ■ Design The classic design of an ARPEX couplings of the ARS-6 series is shown in the following illustration. The plate packs are bolted al- ternately between the flanges of the coupling hubs and the inter- mediate spacer. Up to size 280-6 close-fitting bolts and from size 305-6 conical screw connections are used for fastening. A large number of intermediate spacer and shafts, hubs and flanges can be combined and thus cover a large number of possible drive requirements.
Hub Intermediate spacer Hub Close-fitting bolt 6 Plate pack Collar nut G_MD10_EN_00143a Design of an ARPEX coupling, ARS-6 series, type NEN Variants of the ARPEX coupling, ARS-6 series All coupling types can be very easily combined with further stan- dard components in the ARPEX modular system. Jumbo hubs are used to permit larger maximum bores. Clamping hubs transmit torque by friction without the use of par- allel keys. F, D and C flanges offer many different possibilities for flange connection. The coupling parts of the ARPEX ARS-6 series are machined on all sides. Exceptions are H and Z spacers and intermediate shafts. The spacers are delivered with unmachined, primed spacer tube.
Higher torques and maximum speeds with similar coupling outer diameters DA can be achieved with the ARPEX ARC-8/-10 series. Further application-specific coupling types are available in selection module X.CAT NG at www.siemens.com/couplings . Dimension sheets and further information are available on request. 6/5 Siemens MD 10.1 · 2015 Types NEN, BEN, BEB Variant with standard intermediate spacer, many sizes available from stock NON, BON Variant with shortest intermediate spacer NUN, BUN, BUB Variant with split intermediate spacer NHN Variant with intermediate spacer for customer-specific shaft distance NZN Variant with reinforced intermediate spacer NWN Variant with intermediate shaft