FLENDER Standard Couplings Torsionally Rigid All-Steel Couplings — ARPEX ARC-8/-10 Series © Siemens AG 2015 General information ■ Design The classic design of an ARPEX coupling of the ARC-8/-10 se- ries type NEN is shown in the following illustration. The plate packs are bolted alternately between the flanges of the coupling hubs and the intermediate spacer. Conical screw connections are used for fastening. The interme- diate spacer lengths are variably designed according to cus- tomer specifications.
Hub Plate pack Intermediate spacer Hub Tightening screw 6 Washer Taper sleeve Taper bolt Screw plug G_MD10_EN_00154a Design of an ARPEX coupling, ARC-8/-10 series, type NEN Variants of the ARPEX coupling, ARC-8/-10 series The coupling parts of the ARPEX ARC-8/-10 series with the exception of the H spacers have been machined on all sides. These are delivered with unmachined and primed spacer tube. 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 re- quest.
6/28 Siemens MD 10.1 · 2015 Types NEN Variant with intermediate spacer machined on all sides, length variable NHN Variant with unmachined intermediate spacer, length variable BUB Compact variant with split intermediate spacer for short shaft distances MFEFM Variant with preassembled intermediate unit and machined intermediate spacer, length variable MFHFM Variant with preassembled intermediate unit and unmachined intermediate spacer, length variable