FLENDER Standard Couplings Torsionally Rigid All-Steel Couplings — ARPEX ARS-6 Series © Siemens AG 2015 General information ■ Technical data Power ratings 6 The permitted shaft misalignments Δ K a , Δ K r and Δ K w are maxi- mum values and must not occur at the same time (see following table). The permitted shaft misalignment Δ K r for types NHN, NZN and NWN applies to a coupling with shaft distance S = 1000 mm. For other shaft distances, the permitted radial misalignment can be determined with the following formula: Δ K r = (S – S1) ⋅ tan ( Δ K w ). The shaft distance S is shown in the table for the type. The values for torsional stiffness apply to the complete coupling.
In the case of types NHN and NZN to a coupling with shaft dis- tance S = 1000 mm. In the case of type NWN, the torsional stiff- ness applies to a coupling without intermediate or torsion shaft. The torsional stiffness of the plate packs applies to the rated coupling torque T KN . To determine the torsional stiffness for a specific operating point, e.g. for calculating torsional vibration, the manufacturer must be consulted. T Kmax permitted only five times per hour.
6/6 Siemens MD 10.1 · 2015 Size Rated torque Maxi- mum torque Over- load torque Fatigue torque Maxi- mum speed Maximum permitted shaft misalignment Torsional stiffness DA TKN TKmax TKOL TKW nKmax ±ΔKa ±ΔKw ±ΔKr CTdyn NHN NZN NWN NEN/BEN BEB/NUN BUN/BUB NON BON NEN BEN/BEB NUN BUN/BUB NON BON NHN NZN NWN Nm Nm Nm Nm rpm mm mm mm mm MNm/rad MNm/rad MNm/rad MNm/rad MNm/rad MNm/rad 78-6 170 320 510 85 13400 1.10 0.7° 12.1 0.57 0.53 0.05 0.04 0.05 0.012 0.032 0.05 270 510 810 135 10000 1.80 12.1 0.88 0.53 0.09 0.09 0.09 0.024 0.070 0.09 490 930 1470 245 8400 2.02 12.1 1.04 0.68 0.17 0.17 0.18 0.043 0.141 0.19 700 1330 2100 350 7500 2.40 12.1 1.28 0.72 0.22 0.22 0.24 0.066 0.203 0.25 1250 2370 3750 625 6350 2.74 12.0 1.49 0.84 0.33 0.34 0.36 0.114 0.317 0.39 2000 3800 6000 1000 6000 2.86 12.0 1.55 0.98 0.48 0.50 0.52 0.196 0.443 0.57 3000 5700 9000 1500 5350 3.06 12.0 1.55 0.98 0.67 0.69 0.73 0.302 0.614 0.79 4400 8300 13200 2200 5000 3.14 12.0 1.77 1.10 0.77 0.78 0.82 0.352 0.669 0.88 5700 10800 17100 2850 4350 3.70 12.0 1.93 1.20 1.24 1.26 1.32 0.568 1.04 1.40 7600 14400 22800 3800 4100 3.84 11.9 2.09 1.50 1.39 1.42 1.46 0.697 1.22 1.57 10000 19000 30000 4600 3750 4.18 11.9 2.53 1.53 1.55 1.57 1.65 0.881 1.42 1.73 12000 21000 36000 5000 3400 4.46 11.9 2.72 1.80 2.83 2.87 3.05 1.51 2.71 3.32 18000 32000 54000 7500 3100 4.84 11.9 2.88 1.89 3.85 3.92 4.14 2.11 3.62 4.49 24000 43000 72000 10000 2800 4.98 11.8 3.03 2.16 5.72 5.84 6.12 3.14 – 6.75 34000 61000 102000 14000 2550 5.50 11.8 3.31 2.26 7.25 7.42 7.79 5.06 – 8.51 43000 77000 129000 18000 2350 6.02 11.8 3.59 2.48 10.0 10.2 10.8 7.42 – 11.9 55000 99000 165000 23000 2150 6.80 11.7 4.09 2.64 11.7 11.9 12.7 9.25 – 13.6 69000 124000 207000 29000 2000 7.34 11.7 4.35 2.86 14.0 14.3 15.1 11.4 – 16.2 92000 166000 276000 38000 1800 7.86 11.6 4.87 3.02 17.9 18.3 19.4 15.2 – 20.7 106000 191000 318000 44000 1700 8.24 11.6 5.13 3.24 21.1 21.7 22.9 18.2 – 24.5 105-6 125-6 140-6 165-6 175-6 195-6 210-6 240-6 255-6 280-6 305-6 335-6 372-6 407-6 442-6 487-6 522-6 572-6 602-6