RLQU Improved Flange Quick Installation Metal Diaphragm Coupling
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 |
The improved quick installation flange diaphragm coupling has undergone multiple optimized designs based on the traditional Shim Pack coupling. Its most prominent feature is the use of a quick installation flange structure, which greatly simplifies the installation and disassembly process and improves work efficiency. At the same time, the connection between the flanges is fastened with high-strength bolts, ensuring the stability and reliability of the coupling under high-speed and heavy load conditions.
The diaphragm, as the core component of the coupling, has undergone special processing and has excellent elasticity and wear resistance. This design not only improves the torsional stiffness and load-bearing capacity of the coupling, but also effectively reduces vibration and noise, extending its service life.
Performance advantages
High torque transmission capability: The improved quick installation flange Flexible Membrane coupling can withstand large torque and is suitable for various heavy-duty conditions, ensuring the stable operation of the transmission system.
Good compensation performance: Due to the elastic properties of the diaphragm, this coupling can automatically compensate for axial, radial, and angular displacements, reducing the impact of installation errors or deformation during operation on the transmission system.
Easy to install and maintain: The quick installation flange structure makes installation and disassembly simple and fast, reducing maintenance costs and improving work efficiency.
Excellent vibration and noise reduction effect: The elastic design of the diaphragm effectively absorbs vibrations and noise during the transmission process, improving the quality of the working environment.
The improved quick installation flange Steel Laminae coupling has been widely used in multiple fields due to its excellent performance. In the mechanical manufacturing industry, it is widely used to connect various transmission shafts, such as machine tool spindles, gearbox body shafts, etc; In the energy industry, such as wind power generation, hydropower generation and other fields, it serves as a key transmission component to ensure the stable operation of the generator set; In addition, in high-end manufacturing fields such as aerospace and shipbuilding, this coupling also plays an irreplaceable role.