MFG COUPLINGS – GENERAL PRESENTATION Version EN 17.1 / 3.3.2017 / TEV MFG Components Oy | Pajatie 1, 82600 Tohmajärvi | mfgcomponents@mfg.fi | www.mfg.fi
MFG COUPLING FAMILY CLAMP COUPLINGS GEAR COUPLINGS DISCPACK COUPLINGS PIN COUPLINGS SPECIAL SHEAR PIN COUPLINGS COUPLINGS
GC GEAR COUPLINGS The gear coupling is a torsionally rigid coupling, which can transmit a relatively high torque when compared to its physical size. The crowned gearing can compensate for small angular and radial misalignments between the shafts, and even long axial strokes can be achieved by altering the gearing length. The gear coupling is thus considered a flexible coupling. Torque is typically transmitted from the shaft to the coupling by a keyway and a fitted bore joint, and from the hub to the sleeve by the gearing. Torque is then transferred between the two coupling halves and thus from the driving machine to the driven unit by a flange joint. The gear coupling has a very long lifespan, when correctly dimensioned, and it is easy to tailor to fit almost any drive. MFG's GC gear coupling line-up covers shaft sizes 20-1000 mm, and torques up to 16 000 000 Nm. The smaller sizes are made in Finland, and the larger sizes from GC-400 and up are made in Germany. Modern and flexible manufacturing methods make it possible for MFG to supply customized solutions with a quick delivery time. Special materials and heat treatments are available on request.
ADVISORY DIMENSIONS GC-Coupling Dimensions Small sizes GC-50 - GC-220 Large sizes GC-240 - GC-600 XLarge sizes GC-700 - GC-1000 T1, 1 hub turned T2, 2 hubs turned T nom T max n max M J D D max D h D n D1/D2 min D1/D2 max L min L L max L nmin L n 1/L n 2 L nmax D ph M S min S S max S 1min S 1 S1 max S2 min S 2 S2 max Type Kgm 2 Nm Nm 1/min kg mm GC-50 1 920 3 840 8 700 3,6 0,005 111 250 83 64 20 50 91 93 208 43 45 100 57 M5 1 3 8 5 8 10 7 10 12 GC-65 3 550 7 100 6 700 8,7 0,022 148 250 105 83 20 65 131 136 316 50 65 150 74 M6 1 6 16 15 20 24 20 26 32 GC-75 6 100 12 200 5 200 13 0,044 169 250 126 100 20 75 151 156 316 62 75 150 88 M8 1 6 16 13 18 22 18 23 28 GC-100 13 600 27 200 4 200 25 0,139 209 300 162 135 30 100 171 176 316 76 85 150 120 M10 1 6 16 12 17 21 18 23 28 S Sizes GC-120 18 900 37 800 3 600 37 0,270 233 300 186 160 40 120 211 216 416 90 105 200 144 M10 1 6 16 17 24 31 24 34 44 GC-135 25 300 50 600 3 250 47 0,380 254 300 204 175 40 135 231 236 418 100 115 200 156 M12 1 6 18 15 24 33 24 44 64 GC-150 35 500 71 000 2 800 70 0,868 308 400 246 200 50 150 241 246 618 105 120 300 172 M16 1 6 18 20 27 33 24 44 64 GC-165 38 600 77 200 2 600 103 1,50 336 500 262 220 60 165 301 310 628 120 150 300 196 M16 1 10 28 52 58 63 58 83 108 GC-190 78 000 156 000 2 200 147 2,72 366 500 303 255 80 190 341 350 828 150 170 400 228 M20 1 10 28 36 47 58 58 83 108 GC-220 110 600 221 200 1 950 215 5,32 428 600 345 290 80 220 401 410 828 175 200 400 246 M20 1 10 28 33 50 66 64 94 124 GC-240 156 000 312 000 1 750 324 9,68 458 600 394 320 80 240 463 476 844 190 230 400 284 M20 3 16 44 86 99 111 155 170 185 GC-270 186 000 372 000 1 600 415 14,9 490 600 436 360 120 270 503 516 844 220 250 400 314 M24 3 16 44 81 94 106 148 162 176 GC-285 219 000 438 000 1 450 540 23,7 534 800 474 380 120 285 563 576 844 250 280 400 330 M24 3 16 44 111 121 131 198 213 228 GC-330 250 500 501 000 1 300 717 36,8 580 800 518 431 160 330 603 616 844 280 300 400 390 M30 3 16 44 91 101 111 158 173 188 L Sizes GC-365 345 000 690 000 1 150 927 61,0 668 800 586 480 180 365 705 730 858 325 350 400 422 M30 5 30 58 124 137 150 216 233 250 GC-400 470 000 940 000 1 050 1 299 102 730 1000 642 530 200 400 805 830 358 345 400 150 478 M30 5 30 58 112 131 150 192 213 234 GC-450 661 000 1 322 000 950 1 712 172 830 1000 720 621 200 450 805 830 358 400 400 150 560 M30 5 30 58 112 131 150 192 213 234 GC-500 790 000 1 580 000 900 2 214 252 882 1000 742 651 200 500 905 930 1058 410 450 500 600 M30 5 30 58 122 141 160 210 230 250 GC-600 1 250 000 2 500 000 775 3 242 488 970 1000 867 761 300 600 1005 1030 1070 470 500 500 680 M30 5 30 70 131 151 170 230 250 270 GC-700 2 150 000 4 300 000 650 6 054 1358 1 220 2000 1064 921 300 700 1405 1440 1710 580 700 800 830 M42 5 40 110 XL Sizes GC-800 3 600 000 7 200 000 550 9 014 2744 1 440 2000 1240 1061 300 800 1405 1440 1710 600 700 800 920 M48 5 40 110 GC-900 5 300 000 10 600 000 475 11 866 4574 1 600 2000 1416 1190 400 900 1505 1540 1710 680 750 800 1100 M48 5 40 110 GC-1000 8 000 000 16 000 000 425 13 500 6691 1 814 2000 1630 1350 500 1000 1660 1700 2380 740 800 1100 1160 M48 60 100 180 L min & L max dimensions given for nominal hub length L n Axial stroke can be calculated from S values: S max - S min = Stroke Mass moment of inertia J is given for maximum bore diameter Mass M is given for average bore diameter (D min + D max /2) Maximum rotation speed n max is given for a grease lubricated coupling without dynamic balancing Updated 23.3.2015 13:25
DPC METAL DISCPACK COUPLINGS The metal discpack coupling is a torsionally rigid and backlash-free shaft coupling, which can compensate for relatively large angular and radial misalignments between the connected shafts. The all-metal construction is not susceptible to heat, and is maintenance free, so the coupling is especially well suited for drives where traditional rubber element couplings can not be used due to heat or high drive torque. A correctly installed and dimensioned discpack coupling's lifetime is at least as long as that of the connected machines, and it requires no maintenance apart from visual inspection. The discpack can be inspected when the machines are running with a strobe light. The MFG DPC metal discpack coupling line-up covers shaft diameters 20-135 mm, but larger sizes are available on request. The DPCC version allows for a short distance between shaft ends (DBSE), and is equipped with a split spacer so that the machines do not need to be moved when changing the discpacks. The DPCC may also be used to replace a gear coupling, if maintenance free operation is desired.
KKT CLAMP COUPLINGS A clamp coupling is a simple, rigid coupling for joining to machines together, or to be used as a shaft extension. The most common applications are overhead cranes and different drives in the saw mill industry, and also vertical mixers. The DIN standard clamp coupling is made of cast iron and is relatively large, where as the MFG clamp coupling is made of steel. This steel coupling is backlash free and much smaller than the DIN standard coupling, so it is especially well suited for drives with space limitations or high rotation speeds. The coupling can be installed and disassembled without moving the machinery, and is maintenance free. The MFG clamp coupling line-up covers shaft sizes 30-150mm, but larger models are available on request. Different materials, such as stainless steel, are also available. Vertical drives can be equipped with the KKT3, which is fitted with a limiter plate inside the coupling.
TK PIN COUPLINGS The pin coupling is a tried and tested coupling, which has been found very reliable. The design allows for large angular, radial and axial misalignments between the connected shafts, and also dampens vibrations. The pin coupling is especially popular in the mining industry, has a very long life time and requires no maintenance apart from visual inspection of the flexible elements. The flexible elements of the TK pin coupling can be changed without moving the connected machines, and are available in different materials for different operating conditions. The MFG TK pin coupling line-up covers couplings up to 1000 mm in diameter, and the design can easily be customized to fit different drives, such as test benches. The coupling can also be combined with an SPC shear pin coupling, to provide a fail safe for the drive in case of sudden problems. The TKR coupling's axial movement is limited so the coupling may be used with electric motors, which are equipped with slide bearings.
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