FLENDER Standard Couplings Highly Flexible Couplings — ELPEX-S Series © Siemens AG 2015 General information ■ Technical data Power ratings 11 Torsional stiffness depends on the ambient temperature and the frequency and amplitude of the torsional vibration excitation. More precise torsional stiffness and damping parameters on re- quest. With elastic couplings the manufacturing process of the rubber elements and their aging primarily influence the rigidity value C Tdyn . For this reason calculation must be made with a tolerance for the dynamic rigidity of ± 20 %.
The specified damping coeffi- cient Ψ is a minimum value with the result that the damping per- formance of the coupling corresponds at least to the specified value. 11/6 Siemens MD 10.1 · 2015 Rubber dusk elements made of a natural and synthetic rubber mixture Type Size Rubber element Rated torque Maximum torque Overload torque Fatigue torque Dynamic torsional stiffness Motor flange Maximum speed TKN TKmax TKOL TKW CTdyn SAE J620d nmax Nm Nm Nm Nm Nm/rad Size rpm ESN . EST 220 WN 330 660 750 165 1100 6.5 4200 NN 360 720 900 180 1700 7.5 4200 SN 400 800 1000 200 2500 8 4200 10 3600 ESN .
EST 265 WN 500 1000 1250 250 2100 8 4200 NN 600 1200 1800 300 3100 10 3600 SN 700 1400 2100 350 4500 11.5 3500 ESN . EST 290 WN 800 1600 2000 400 3600 10 3600 NN 900 1800 2700 450 5000 11.5 3500 SN 1000 2000 3000 500 7500 ESN . EST 320 WN 1200 2400 3000 600 8000 11.5 3500 NN 1350 2700 3600 650 10000 14 3000 SN 1550 3100 4200 750 13500 ESN . EST 360 WN 1800 3600 4500 900 8500 11.5 3200 NN 2000 4000 5400 1000 13000 14 3000 SN 2500 5000 7500 1250 22000 ESN . EST 420 WN 3100 6200 7700 1500 16000 14 3000 NN 3450 6900 10000 1700 30000 16 2600 SN 4200 8400 12600 2100 45000 18 2300 ESN .
EST 465 WN 4600 9200 10000 2300 35000 14 3000 NN 5200 10400 15600 2600 56000 16 2600 SN 6300 12600 18900 3100 100000 18 2300 ESN . 520 WN 6200 12400 14000 3100 38000 18 2300 NN 7000 14000 21000 3500 75000 21 2000 SN 7800 15600 23400 3900 110000 ESD . 520 WN 12400 24800 28000 6200 76000 18 2300 NN 14000 28000 42000 7000 150000 21 2000 SN 15600 31200 46800 7800 220000 ESN . 560 WN 8000 16000 18000 4200 55000 18 2300 NN 9000 18000 27000 4800 100000 21 2000 SN 10000 20000 30000 5500 190000 ESD . 560 WN 16000 32000 36000 8400 110000 18 2300 NN 18000 36000 54000 9600 200000 21 2000 SN 20000 40000 60000 11000 380000 ESN .
580 WN 11000 22000 28000 5500 75000 18 2300 NN 12500 25000 37000 6250 120000 21 2000 SN 14000 28000 42000 7000 210000 ESD . 580 WN 22000 44000 56000 11000 150000 21 2000 NN 25000 50000 74000 12500 240000 24 1800 SN 28000 56000 84000 14000 420000 ESN . 680 WN 16000 32000 40000 8000 150000 21 2000 NN 18000 36000 54000 9000 250000 24 1800 SN 20000 40000 60000 10000 450000 ESD . 680 WN 32000 64000 80000 16000 300000 21 2000 NN 36000 72000 108000 18000 500000 24 1800 SN 40000 80000 120000 20000 900000 ESN . 770 WN 25000 50000 75000 12500 250000 similar to 1500 NN 28000 56000 84000 14000 400000 DIN 6288 SN 31500 63000 94000 15000 700000 ESD .
770 WN 50000 100000 150000 25000 500000 similar to 1300 NN 56000 112000 168000 28000 800000 DIN 6288 SN 63000 126000 189000 30000 1400000