RLQU Diaphragm Coupling
Improved Flange, Quick Installation
The improved RLQF has smaller additional bending moments and better performance. Suitable for drum pressure fans, turbine compressors, and other high speed applications.
| Model | D | DA | D1/D2 | D3 | d1/d2max) | d4 | L1/L2 | E Standard/(min) | L | Maximum Allowable Speed | Nominal Torque | Maximum Instantaneous Torque |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | n max(r/min) | T(N.m) | Tmax(N.m) | |
| RLQU103-6 | 124 | 103 | 103 | 62 | 60 | 49 | 65 | 460/120 | 260 | 38000 | 980 | 2500 |
| RLQU125-6 | 146 | 125 | 127 | 76 | 70 | 58 | 75 | 460/120 | 272 | 35000 | 1500 | 5300 |
| RLQU145-6 | 168 | 145 | 150 | 80 | 85 | 75 | 90 | 460/120 | 290 | 30000 | 2000 | 6500 |
| RLQU158-6 | 188 | 158 | 180 | 89 | 100 | 85 | 105 | 460/130 | 340 | 27500 | 3800 | 15000 |
| RLQU175-6 | 210 | 175 | 200 | 100 | 120 | 99 | 125 | 460/160 | 400 | 24500 | 6500 | 25000 |
| RLQU205-6 | 235 | 205 | 210 | 118 | 135 | 117 | 140 | 460/160 | 430 | 23500 | 9800 | 27500 |
| RLQU235-6 | 270 | 235 | 232 | 139 | 155 | 140 | 165 | 460/190 | 525 | 21000 | 11000 | 43500 |
| RLQU255-6 | 298 | 255 | 250 | 154 | 170 | 150 | 180 | 460/195 | 545 | 18500 | 14000 | 65000 |
| RLQU280-6 | 320 | 280 | 277 | 169 | 185 | 167 | 195 | 460/200 | 590 | 16000 | 21500 | 85350 |
| RLQU300-6 | 350 | 300 | 305 | 184 | 205 | 182 | 215 | 460/210 | 620 | 14850 | 26500 | 91500 |
| RLQU330-6 | 382 | 330 | 336 | 208 | 225 | 200 | 235 | 460/250 | 710 | 13500 | 32000 | 128000 |
| RLQU370-6 | 425 | 370 | 365 | 234 | 245 | 220 | 255 | 500/270 | 780 | 12500 | 45000 | 185000 |
| RLQU400-6 | 455 | 402 | 405 | 242 | 270 | 232 | 290 | 500/305 | 885 | 11000 | 78500 | 282000 |
| RLQU435-6 | 490 | 435 | 440 | 278 | 295 | 270 | 315 | 500/305 | 925 | 10000 | 100000 | 315000 |
| RLQU485-6 | 545 | 485 | 490 | 305 | 325 | 300 | 345 | 550/330 | 1000 | 8500 | 150000 | 470000 |
| RLQU540-6 | 600 | 540 | 532 | 352 | 355 | 344 | 375 | 550/330 | 1070 | 7350 | 200000 | 525000 |
| Model | d3 | Mass Point G | Angular Deviation | Maximum axial deviation | S | Intermediate Mass m | Intermediate moment of inertia | Intermediate torsional stiffness | Weight M | Torsional Stiffness | Rotational Inertia | Tightening torque |
| (mm) | (mm) | (±△o) | (Max±△mm) | (mm) | 10-3kg/mm | Js10-6(Kg.m2/mm) | Ct-106(Nm.mm/rad) | (Kg) | Ct-106(N.m/rad) | Js10-6(Kg.m2/mm) | F' (N.m) | |
| RLQU103-6 | 52.41 | 0.35° | 0.9 | 9 | 3.8 | 3 | 25 | 7.6 | 47 | 5 | 8 | |
| RLQU125-6 | 61.485 | 1 | 12 | 5.3 | 5.04 | 51.3 | 12.8 | 151 | 13 | 8 | ||
| RLQU145-6 | 70.6 | 1 | 13 | 8.82 | 14 | 143 | 19.5 | 150 | 31 | 8 | ||
| RLQU158-6 | 80.02 | 1.25 | 16 | 10 | 20 | 203 | 28 | 217 | 57 | 8 | ||
| RLQU175-6 | 96.6 | 1.25 | 17 | 11.5 | 31 | 314 | 42.5 | 472 | 129 | 8 | ||
| RLQU205-6 | 103.5 | 1.75 | 21 | 15 | 56 | 571 | 56.5 | 478 | 203 | 15 | ||
| RLQU235-6 | 120.2 | 1.75 | 23 | 20 | 105 | 1066 | 89 | 894 | 483 | 15 | ||
| RLQU255-6 | 132 | 1.8 | 25 | 23 | 146 | 1489 | 112.5 | 1502 | 671 | 45 | ||
| RLQU280-6 | 142.7 | 1.8 | 31 | 30.1 | 232 | 2361 | 138 | 1517 | 115 | 45 | ||
| RLQU300-6 | 149.1 | 2 | 33 | 33 | 301 | 3089 | 173.2 | 1562 | 160.6 | 45 | ||
| RLQU330-6 | 164.3 | 2 | 35 | 44 | 490 | 4989 | 247 | 2622 | 258 | 45 | ||
| RLQU370-6 | 185.5 | 2.25 | 35 | 57.5 | 771 | 7860 | 337 | 4242 | 466.7 | 45 | ||
| RLQU400-6 | 207.2 | 3 | 37 | 75.5 | 1129 | 11509 | 405 | 9109 | 7329 | 45 | ||
| RLQU435-6 | 212.5 | 3 | 37 | 80 | 1504 | 16140 | 515.5 | 15450 | 10010 | 45 | ||
| RLQU485-6 | 245.2 | 3.25 | 40 | 105 | 2570 | 26183 | 690 | 20380 | 18490 | 100 | ||
| RLQU540-6 | 262.4 | 4 | 40 | 133 | 4290 | 43682 | 903 | 23350 | 29500 | 100 | ||
| Model | D | DA | D1/D2 | D3 | d1/d2max) | d4 | L1/L2 | E Standard/(min) | L | Maximum Allowable Speed | Nominal Torque | Maximum Instantaneous Torque |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | n max(r/min) | T(N.m) | Tmax(N.m) | |
| RLQU158-8 | 188 | 158 | 147 | 94 | 100 | 82 | 105 | 460/130 | 340 | 12200 | 2000 | 6500 |
| RLQU175-8 | 210 | 175 | 175 | 108 | 115 | 97 | 120 | 460/160 | 400 | 10000 | 3500 | 10500 |
| RLQU205-8 | 235 | 207 | 197 | 135 | 130 | 123 | 135 | 460/250 | 520 | 9500 | 8000 | 19500 |
| RLQU235-8 | 280 | 240 | 235 | 152 | 155 | 138 | 165 | 460/270 | 600 | 8000 | 16000 | 47800 |
| RLQU255-8 | 300 | 258 | 260 | 164 | 175 | 149 | 185 | 460/305 | 675 | 7500 | 25000 | 63000 |
| RLQU300-8 | 345 | 302 | 292 | 198 | 195 | 184 | 205 | 460/305 | 715 | 6500 | 31500 | 73700 |
| RLQU345-8 | 402 | 346 | 344 | 234 | 230 | 217 | 240 | 500/250 | 730 | 5500 | 40000 | 123000 |
| RLQU370-8 | 425 | 372 | 368 | 248 | 2445 | 228 | 255 | 500/270 | 780 | 5200 | 63000 | 165000 |
| RLQU400-8 | 453 | 402 | 396 | 257 | 270 | 232 | 290 | 500/305 | 885 | 4750 | 80000 | 228000 |
| RLQU435-8 | 490 | 435 | 435 | 293 | 290 | 270 | 310 | 500/305 | 925 | 4400 | 100000 | 254000 |
| RLQU485-8 | 550 | 485 | 474 | 327 | 315 | 300 | 335 | 550/330 | 1000 | 3900 | 140000 | 400000 |
| RLQU540-8 | 600 | 540 | 526 | 374 | 350 | 344 | 370 | 550/330 | 1070 | 3500 | 200000 | 448000 |
| RLQU610-8 | 665 | 610 | 587 | 420 | 390 | 385 | 410 | 600/385 | 1205 | 3200 | 250000 | 669000 |
| Model | d3 | Mass Point G | Angular Deviation | Maximum axial deviation | S | Intermediate Mass m | Intermediate moment of inertia | Intermediate torsional stiffness | Weight M | Torsional Stiffness | Rotational Inertia | Tightening torque |
| (mm) | (mm) | (±△o) | (Max±△mm) | (mm) | 10-3kg/mm | Js10-6(Kg.m2/mm) | Ct-106(Nm.mm/rad) | (Kg) | Ct-106(N.m/rad) | Js10-6(Kg.m2/mm) | F' (N.m) | |
| RLQU158-8 | 87.8 | 0.25° | 0.6 | 17 | 12 | 20 | 203 | 29 | 351 | 110 | 8 | |
| RLQU175-8 | 94.5 | 0.9 | 17 | 13 | 31 | 314 | 42.5 | 620 | 220 | 10 | ||
| RLQU205-8 | 103.8 | 1.1 | 21 | 19.1 | 80 | 811 | 58 | 904 | 438 | 12.5 | ||
| RLQU235-8 | 121.5 | 1.1 | 23 | 25.1 | 132 | 1344 | 98 | 1785 | 865 | 28 | ||
| RLQU255-8 | 133.4 | 1.4 | 25 | 29 | 178 | 1810 | 125.5 | 3069 | 950 | 31.5 | ||
| RLQU300-8 | 151.5 | 1.7 | 31 | 33 | 301 | 3069 | 174 | 3909 | 1597 | 45 | ||
| RLQU345-8 | 174.4 | 2 | 33 | 42.5 | 602 | 6133 | 275 | 5365 | 3484 | 63 | ||
| RLQU370-8 | 187.4 | 2.1 | 35 | 59 | 833 | 8485 | 332 | 9043 | 4677 | 100 | ||
| RLQU400-8 | 207.2 | 2.2 | 35 | 75.5 | 1129 | 11509 | 435.2 | 12300 | 13500 | 140 | ||
| RLQU435-8 | 212.5 | 2.4 | 37 | 80 | 1504 | 16140 | 554 | 15450 | 18780 | 180 | ||
| RLQU485-8 | 245.2 | 2.6 | 40 | 105 | 2570 | 26183 | 742 | 20380 | 30280 | 224 | ||
| RLQU540-8 | 262.4 | 2.75 | 40 | 133 | 4290 | 43682 | 956 | 23350 | 47500 | 280 | ||
| RLQU610-8 | 302.1 | 3.4 | 46 | 169 | 6870 | 70033 | 1325 | 37320 | 81300 | 400 | ||
| Model | D | DA | D1/D2 | D3 | d1/d2max) | d4 | L1/L2 | E Standard/(min) | L | Maximum Allowable Speed | Nominal Torque | Maximum Instantaneous Torque |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | n max(r/min) | T(N.m) | Tmax(N.m) | |
| RLQU205-10 | 235 | 207 | 190 | 135 | 130 | 119 | 135 | 460/250 | 520 | 18500 | 20000 | 54000 |
| RLQU235-10 | 280 | 240 | 225 | 152 | 155 | 132 | 165 | 460/270 | 600 | 15500 | 35500 | 113500 |
| RLQU255-10 | 300 | 258 | 255 | 164 | 175 | 140 | 185 | 460/305 | 675 | 14500 | 50000 | 145000 |
| RLQU300-10 | 345 | 302 | 286 | 198 | 195 | 176 | 205 | 460/305 | 715 | 12500 | 63000 | 165000 |
| RLQU345-10 | 402 | 346 | 345 | 234 | 230 | 217 | 240 | 500/250 | 730 | 11000 | 78500 | 245000 |
| RLQU370-10 | 425 | 372 | 368 | 248 | 245 | 228 | 255 | 500/270 | 780 | 10000 | 124500 | 348500 |
| RLQU400-10 | 453 | 402 | 400 | 257 | 270 | 232 | 290 | 500/305 | 885 | 9500 | 158500 | 518000 |
| RLQU435-10 | 490 | 435 | 435 | 293 | 290 | 270 | 310 | 500/305 | 925 | 8700 | 178500 | 575000 |
| RLQU485-10 | 550 | 485 | 480 | 327 | 315 | 300 | 335 | 550/330 | 1000 | 7500 | 245000 | 860000 |
| RLQU540-10 | 600 | 540 | 530 | 374 | 350 | 344 | 370 | 550/330 | 1070 | 6850 | 358500 | 965000 |
| RLQU610-10 | 665 | 610 | 590 | 410 | 390 | 386 | 410 | 600/385 | 1205 | 6000 | 555000 | 1450000 |
| Model | d3 | Mass Point G | Angular Deviation | Maximum axial deviation | S | Intermediate Mass m | Intermediate moment of inertia | Intermediate torsional stiffness | Weight M | Torsional Stiffness | Rotational Inertia | Tightening torque |
| (mm) | (mm) | (±△o) | (Max±△mm) | (mm) | 10-3kg/mm | Js10-6(Kg.m2/mm) | Ct-106(Nm.mm/rad) | (Kg) | Ct-106(N.m/rad) | Js10-6(Kg.m2/mm) | F' (N.m) | |
| RLQU205-10 | 116.4 | 0.2° | 0.8 | 21 | 25 | 100 | 811 | 58 | 1450 | 380 | 8 | |
| RLQU235-10 | 121.5 | 0.85 | 23 | 35 | 175 | 1344 | 95 | 2660 | 870 | 15 | ||
| RLQU255-10 | 121.5 | 0.95 | 23 | 45 | 261 | 1344 | 128 | 3930 | 1440 | 15 | ||
| RLQU300-10 | 133.4 | 1.15 | 26 | 48 | 445 | 1810 | 175.5 | 5405 | 2540 | 45 | ||
| RLQU345-10 | 151.5 | 1.4 | 31 | 51 | 602 | 3069 | 278.5 | 7921 | 5990 | 45 | ||
| RLQU370-10 | 174.4 | 1.5 | 33 | 59 | 833 | 6133 | 336 | 11450 | 8050 | 45 | ||
| RLQU400-10 | 187.4 | 1.505 | 35 | 75 | 1077 | 8485 | 445 | 15540 | 12390 | 45 | ||
| RLQU435-10 | 207.2 | 2 | 35 | 78.5 | 1510 | 11509 | 559 | 19950 | 18850 | 45 | ||
| RLQU485-10 | 212.5 | 2.15 | 38 | 104.5 | 2570 | 16140 | 748.5 | 29385 | 30500 | 45 | ||
| RLQU540-10 | 245.2 | 2.3 | 40 | 133 | 4285 | 26183 | 960 | 39425 | 47950 | 100 | ||
| RLQU610-10 | 262.4 | 2.8 | 46 | 170 | 6672 | 43682 | 1328 | 59450 | 81560 | 100 |