www.jbj.co.uk/couplings.html#flender ARPEX couplings of the ARW-4/-6 series are outstanding for their large angular misalignment capacity of 3°. They were specially designed for drives where high misalignments which have to be compensated for by the coupling are to be expected. The intermediate spacer lengths are variable and are manufactured to customer specifications. II 2DEx h IIICT85 °C ... 250 °CDb X » Paper-makingmachines Coupling suitable for use in potentially explosive atmospheres. Complies with the current ATEX Directive for: II 2GEx h IICT6 ... T2Gb X I M2 Ex hMb X Benefits Application ARPEX couplings of theARW-4/-6 series are used where high misalignment capacities are required. In the papermaking machine industry, theARWcoupling has already proved itself as a maintenance-free alternative to the cardan shaft. Torques of between 92 and 80000 Nm can be transmitted at a permitted angular misalignment of 3.0°. The intermediate spacer can be fitted radially without moving the connected units. Main areas of application for theARW-4/-6 series: » Traction drives Design and configurations The design of an ARPEX NHN coupling of the ARW-4/-6 series is shown in the following illustration. The plate packs are bolted alternately between the flanges of the coupling hubs and the intermediate spacer. Up to size 292-4 close-fitting bolts and from size 324-4 conical screw connections are used for fastening. Up to size 647-4 plate packs in rectangular design, from size 695-6 in hexagonal design are used. The intermediate spacers are variable in length and are manufactured specifically to customer specifications. » Wind power systems The coupling parts of the ARPEX ARW-4/-6 series with the exception of H spacers are machined on all sides. These are delivered with unmachined, primed spacer tube. 24 #DriveLineHarmony ARPEX ARW-4/-6 Series Introduction Torsionally Rigid All-Steel Couplings Collar nut Intermediate spacer Close fitting bolt Disc pack Hub
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