Flex-M Flexible Membrane Couplings - Rivetted Series Materials & Finishes Hubs & spacer: Al. Alloy 2014 T6 Clear anodised finish Membranes: Spring quality stainless steel Heat treated Rivet assembly: Brass rivets flanked by formed steel washers Steel, zinc plate & colour passivate Fasteners: Alloy steel, black oiled Temperature Range 40C to +120C Set screw hubs L L L D L1 L1 L1 L1 L1 L1 B3 B3 B1 B2 B1 B2 B1 B2 Ref. 460 Ref. 464 Ref. 468 Typical for use in pairs or with floating for precisely aligned shafts for greater radial misalignment and lower shafts bearing loads Clamp hubs L L L D L1 L1 L1 L1 L1 L1 B3 B3 B1 B2 B1 B2 B1 B2 Ref. 462 Ref. 466 Ref. 470 Typical for use in pairs or with for precisely aligned shafts for greater radial misalignment and floating shafts lower bearing loads Drive shafts are supplied Drive shafts to order. L2 Please specify: Coupling size Hub style and bore diameter at each end Keyway details Overall length L2 Minimum torsional stiffness, if critical Unless specified otherwise, drive shafts are supplied with set screw Quantity hubs inboard. 20 Huco Dynatork +44 (0) 1992 501900Flex-M Flexible Membrane Couplings - Rivetted Series DIMENSIONS & ORDER CODES 2 1 4 4 Coupling Set Clamp D L L1 B1, B2 B3 Fasteners Moment Mass Size Screw Hubs max 3 of inertia Hubs Screw Torque Wrench kg kgm2 Nm mm x 103 COUPLING REF x 108 13.0 30 7 460.19 N/A 464.19 19.6 50 10 5.6 M3 0.94 1.5 7.3 468.19 27.3 60 12 19 19.2 6.35 462.19 20.2 40 9 N/A 466.19 26.8 60 13 9.2 M2.5 1.32 2 7.3 470.19 34.5 60 14 460.26 15.8 120 15 N/A 464.26 22.4 160 18 6.9 M4 2.27 2 11.0 468.26 30.1 200 23 25.6 26 10 462.26 21.8 130 16 N/A 466.26 28.4 160 20 10.0 M2.5 1.32 2 11.0 470.26 36.1 210 25 560 460.33 22.5 37 N/A 464.33 32.1 800 52 10.0 M5 4.62 2.5 14.1 468.33 42.8 830 55 33 33.5 12.7 462.33 30.5 520 37 N/A 466.33 40.1 730 51 14.0 M3 2.43 2.5 14.1 470.33 50.8 760 55 IMPORTANT 460.41 27.1 1540 69 N/A 464.41 38.5 2250 97 12.0 M6 7.61 3 Load capacity depends on 17.5 468.41 50.1 2450 107 application conditions: 41 16 462.41 37.1 1530 72 N/A 41.5 see page 6 for details 466.41 48.5 2220 100 17.0 M4 5.66 3 17.5 470.41 60.1 2370 109 1 Length of supported thro bore. PERFORMANCE 2 Clearance bore thro spacer. 57 7 Coupling Ref. Peak Max compensation Flexural stiffness 3 Maximum recommended tightening torque. Size torque 4 Values apply with max bores. Angular Radial Axial Torsional Angular Radial Axial 5 Peak torque. Select a size where Peak Nm deg mm mm Nm / rad N / deg N / mm N / mm Torque exceeds the application torque x 460 & 462 2 0 0.1 220 0.4 service factor. (see page 6) 464 & 466 4 0.2 0.2 150 0.25 14 19 0.9 < 7 6 Max. compensation values are mutually 468 & 470 4 0.4 0.2 145 0.3 4 exclusive. 2 0 0.1 585 0.75 460 & 462 7 Torsional stiffness values apply at 50% peak 4 0.2 0.2 385 0.5 37 26 464 & 466 2.3 < 7 torque with no misalignment, measured 4 0.4 0.2 400 0.4 7 468 & 470 shaft-to-shaft with largest standard bores. 1.5 0 0.1 1560 2 Note that in some vendors catalogues 460 & 462 the given torsional stiffness applies to 3 0.2 0.2 935 1 48 464 & 466 5.6 < 8 33 the membrane stack only, giving rise to 3 0.4 0.2 980 1.2 13 468 & 470 a greater value. 1 0 0.1 2710 4 460 & 462 2 0.2 0.2 1980 2 100 11.3 < 8 41 464 & 466 2 0.4 0.2 2020 2 25 468 & 470 STANDARD BORES B1, B2 +0.03/0mm Coupling Size 3 3.175 4 4.763 56 6.350 89 9.525 10 11 12 12.700 14 15 15.875 16 19 26 33 41 14 16 18 19 20 22 24 28 30 31 32 33 35 36 38 40 41 42 Bore ref. Corresponding 251 253 255 257 259 260 bore adaptor Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 60 for details of metallic and electrically insulating adaptors. Huco Dynatork +44 (0) 1992 501900 21