D I S C C O U P L I N G S

Transcription

1 DISC COUPINGS

2 DISC COUPINGS MAIN FEATURES The isc coupling is of the continuous ring laminate metallic iaphragm type with blaes in stainless steel. The torque is transmitte in pure tension through alternate riving an riven bolts on a coon pitch circle iameter. The isc couplings assure the following basic avantage: - no lubrification - no maintenance - high rotation spees - low weight with high torque capacity - strong construction - permit axial, parallel an angular misalignment - work in both rotation irections - no torsional clearance with high torsional rigiity - high an low temperature operation - operation in averse environmental conitions - possibility to replace the element blaes without isplacement of couple machines Disc couplings in the stanar version are manufacture with stainless steel blaes, bolts an bushes in high resistant steel an the other parts in carbon steel. The couplings are operational in a temperature range from - C to +0 C equippe with self-locking metallic nuts an from - C up to +100 C if equippe with nut with nylon insert. Disc couplings are manufacture upon specific request: - in all stainless components to face specific corrosion problems - in special steel for very low operational temperatures - with hubs an spacers in titanium or aluminium alloys to reuce the weight an the inertia - with spacer in composite to reuce the weight an to get very high lenght without intermeiate bearing - accoring with 94/9/CE (Atex) stanars. TYPOOGY Disc couplings are esigne an manufacture in ifferent types to meet the requirements of the ifferent en uses applications: - The series HBSX-GCSX-HPSX-BE with ouble elements compose by two hubs, two element blaes an one spacer allow angular, axial an parallel misalignment. The catalogue shows the allowe values. The axial an parallel misalignments are the consequence of the angular misalignment an therefore inversally proportional, i.e. the increase of one value correspons to the ecrease of the other one. The values of axial thrust generate by the axial misalignment are available asking for to our technical office. Upon request the lenghts of the hubs an of the spacer may be moifie. - The series GCSX has the same features of the range HBSX with the only ifference that the element blaes are with unrivette bushes. This range has been esigne to improve the torque capacity with same size of the coupling. - The series HBX-GCX-HPX with single element compose by two hubs an one element blaes allow an angular an axial misalignment, but not parallel one. For this reason their use is subject to the perfect alignment between the riving an riven machines. Normally these couplings are use in ouble space with a shaft, in orer to bring the transmission as for two elements. - The series GCSTX-GCSX/CTFX are an alternative version of series GCSX an are isegne specifically fo the use in the cooling towers. For this en use, the spacer ens are protecte by close caps to avoi the access of water an vapours to prevent the internal oxyation. The size tables relate to the couplings for cooling towers give the spacer length for operating spees till 1500 RPM. For higher spee requirements refer to our technical service. - The series GCSTX-FC with spacer in composite esigne for cooling towers, allows a weight reuction of about 70% with easy installation an permits to reach the spacer length up to six meters without bearings. The size tables relate to the couplings for cooling towers give the spacer length for operating spees till 1500 RPM. For higher spee requirements refer to our technical service. A backstop evice is equipable to these series of couplings on the motor sie hub to assure one rotation irection only. - The series HBSX/AH-GCSX/AH with aapter an oversize hubs allow to get hubs with bigger size bores. This particular configuration allows to effect the balancing operation of the assemble aapters, element blaes an spacer without removing them, which assure to obtain a very high grae of balancing repeteability. - The series HBSX/RH with reverse hubs an with the spacer ivie in two halfs is esigne to replace the coonly coercialize gear couplings with isc couplings perfectly interchangeable in operational an size aspects with the avantage above mentione. With this range of coupling it is possible to replace the gear couplings also on alreay operating machines without changing the position of the riving an riven machines.

3 SEECTION The proper size selection of couplings epens by several factors. First of all the choice have to be one for a coupling suitable to transmit the imum torque necessary to suit the nominal power (installe power) of the riving machine assuming that it will be higher than the riven machine power (absorbe power). After having etermine the power (HP or KW) to be transmitte as well as the relate operating spee (RPM) an the suitable service factor (Fs) it is possible to select the coupling with the use of the formulas here below. It is also necessary to check that the shaft iameters of the riving an riven machines are lower than the allowe bore of the coupling (see Table A). Selection of coupling base on power: HP or KW Power = x Fs RPM Selection of coupling base on torque: HP x 70 or KW x 9550 Torque (Nm) = x Fs RPM The couplings inclue in this catalogue withstan a start up, or occasional overloa torque, equal to 1,5 times the nominal torque an a short circuit torque equal to 3 times the nominal torque. For all applications it is foreseen a service factor as shown on the table C (such table gives service factor approximate values corresponing to the main applications). BAANCING For couplings with finishe bores or wele spacer it is carrie out upon request the inamic balancing, grae G 6.3 ISO 1940 unless otherwise require. It is anyway nacesary to etermine if the balancing has to be realize with or without key way. The balancing is one with a shaft passing through the coupling an blocke in the bores of the hubs or with separate components. To obtain an high balancing, repeteability grae is avisable use the range with aapter (AH pag ). Consiering that, ue to the assembly tolerance, it is not possible to grant the assemble unit riving machine/coupling/riven machine balancing tolerance within the establishe grae, manufacturer has eveloppe an experience a specific proceure to permit the balancing on site of the isc couplings by fitting up grub screws on specific holes realize uring the coupling manufacture. This solution is specifically use with high spee couplings. Consequently to the high machining accuracy in the manufacture, meium spee couplings o not require balancing unless for exceptionally heavy couplings. Normally the isc couplings with iameter till 100 at 4500 RPM, with iameter from 100 to 0 at 3000 RPM, with iameter from 0 to 500 at 1500 RPM, are manufacture an elivere without balancing. SAFETY ADVICE The couplings are manufacture accoring to the up to ate technical know-how an supplie for safe operation. Moifications non authorise by manufaturer, that can compromise the working safety, are not permitte. The couplings must be employe only within the limit conition of the technical supply specification an respecting the safety running rules.

4 QUAITY All proucts are manufacture an supplie subject to Quality Assurance proceure certifie by loy Register accoring to international stanars UNI EN ISO 9001:00. Couplings can be also manufacture accoring to the irective ATEX 94/9/CE. TAB. C Primary Service Factors Steam or gas turbine Steam engines or water turbines Diesel Engines Constant Torque Centrifugal pumps ight conveyors 1,0 1,5 3,0 Alternators ight fans Slight torque fluctuations Machine tools Screw compressors 1,5 2,0 3,0 Screw pumps iqui ring compressors Rotary ryers Substantial torque fluctuation Reciprocating pumps ow viscosity mixers 2,0 2,5 4,0 Cranes Winches Exceptionally high torque fluctuations Rotary presses Reciprocating compressors 3,0 3,5 5,0 High viscosity mixers Marine propellers ATTENTION! For a correct working, the couplings have to be chosen accoring to the ata given on the above tables with a service factor suitable for the application an the working surrounings. In case of working conition moification (i.e. power, RPM, start-up frequency, moification to the riving an riven machines, coupling proximity temperature) it is necessary to verify the coupling choice.

5 Ranges EBS1 - EBS1.R MICROGIUNTI MICROCOUPINGS FEATURES Nominal rating transmissible = HP/n 1 0,0014 kw/n 1 0,0010 EBS1 Nominal torque = Nm; 10 Max angular misalignment = 1 each element Max parallel misalignment = 0,4 Max axial eflection = ± 1,5 Max spee = RPM Type EBS1 = Weight Kg. 0,450 inertia PD 2 Kgm 2 0,00049 Type EBS1R = Weight Kg. 0,3 inertia PD 2 Kgm 2 0,00036 EBS1.R

6 Ranges HBSX-4 Ranges HBX-4 4 BOTS WITH SPACER From HP 0,003 to HP 0,7 at 1 RPM 4 BOTS WITHOUT SPACER From HP 0,003 to HP 0,7 at 1 RPM Max angular misalignment = 1 each element Max angular misalignment = 1 Max parallel misalignment = 0.0 x (3 + S) Hubs an spacer lengths can be moifie Hubs an spacer lengths can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D HBSX HBX : 1 min 1 1 S 2 3 M M HP/n 0,003 0,006 0,018 0,035 0,060 0,100 0,142 0,185 0,327 0,697 KW/n 0,002 0,004 0,013 0,026 0,044 0,074 0,105 0,136 0,241 0,513 Nm ,5 108, ,5 194, ,5 307, ,5 8, ,5 14, ,5 27,

7 Technical features Ranges HBSX-4 HBX-4 TAB. B COUPING SIZE Weight HBSX kg. 0,9 2,3 4,7 8,3 12,6 21,6 32,6 45,5 67,0 96,5 Weight HBX kg. 0,6 1,6 3,4 5,9 8,9 16,6 24,5 35,5 52,5 71,0 Inertia PD 2 HBSX kgm 2 0,016 0,0061 0,0196 0,0528 0,1024 0,2312 0,4741 0,7788 1,5355 2,8746 Inertia PD 2 HBX kgm 2 0,0009 0,0036 0,0118 0,0315 0,0603 0,1497 0,2995 0,5 1,0137 1,7697 Torsional Stiffness HBSX Nm/ra x ,1668 0,0324 0,0932 0,1815 0,2943 0,5062 0,7112 0,8770 1,5647 3,2196 Torsional Stiffness HBX Nm/ra x ,4611 0,0706 0,60 0,4228 0,6995 1,4 1,5902 1,9532 3,5100 8,6897 Nuts tightenning torque of element blaes Nm Axial eflection HBSX +/- 2,0 2,8 3,6 4,2 4,8 6,0 7,0 8,0 9,0 10,0 Axial eflection HBX +/- 1,0 1,4 1,8 2,1 2,4 3,0 3,5 4,0 4,5 5,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

8 Ranges GCSX-4 Ranges GCX-4 4 BOTS WITH SPACER From HP 0,009 to HP 0,8 at 1 RPM 4 BOTS WITHOUT SPACER From HP 0,009 to HP 0,8 at 1 RPM Max angular misalignment = 1 each element Max angular misalignment = 1 Max parallel misalignment = 0.0 x (3 + S) Hubs an spacer lengths can be moifie Hubs an spacer lengths can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D GCSX GCX min 1 S 2 3 M HP/n 0,009 0,013 0,026 0,036 0,0 0,128 0,157 0,6 0,342 0,555 0,797 KW/n 0,007 0,009 0,019 0,026 0,059 0,094 0,119 0,188 0,1 0,408 0,586 Nm , ,5 131,5 151,5 193,5 215, , ,5 11,5 11,5 13,5 15,

9 Technical features Ranges GCSX-4 GCX-4 TAB. B COUPING SIZE Weight GCSX kg. 1,0 2,2 3,3 4,6 8,3 12,5 21,0 32, ,0 95,0 Weight GCX kg. 0,6 1,5 2,2 3,2 5,7 8,5 16,0 23,5 33,5 50,0 69,0 Inertia PD 2 GCSX kgm 2 0,0018 0,0060 0,0116 0,0195 0,0534 0,1029 0,22 0,4624 0,7496 1,48 2,8312 Inertia PD 2 GCX kgm 2 0,0010 0,0034 0,0064 0,0113 0,0306 0,0590 0,1390 0,2794 0,4777 0,9482 1,7029 Torsional Stiffness GCSX Nm/ra x ,3139 0,0549 0,0814 0,1 0,21 0,4140 0,5062 0,8466 1,1321 1,6785 2,9558 Torsional Stiffness GCX Nm/ra x ,0736 0,1128 0,2394 0,38 0,6877 1,0919 1,33 2,2494 2,84 4,7382 9,9277 Nuts tightenning torque of element blaes Nm Axial eflection GCSX +/- 2,0 2,8 3,2 3,6 4,2 4,8 6,0 7,0 8,0 9,0 10,0 Axial eflection GCX +/- 1,0 1,4 1,6 1,8 2,1 2,4 3,0 3,5 4,0 4,5 5,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

10 Ranges GCSX-4-AH 4 BOTS WITH SPACER AND ADAPTORS From HP 0,009 to HP 0,34 at 1 RPM Ranges GCSX-AH Ranges GCSX-AH-AH Ranges GCSX-AH Ranges GCSX-AH-M Ranges GCSX-AH-M Max angular misalignment = 1 each element Hubs an spacer lenghts can be moifie Max parallel misalignment = 0.0 x (3 + S) TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D A :1:2 min S 2 2A 3 M M HP/n 0,009 0,013 0,026 0,036 0,0 0,128 0,157 0,6 0,342 KW/n 0,007 0,009 0,019 0,026 0,059 0,094 0,119 0,188 0,1 Nm ,5 7,0 8,0 8,5 11,5 11,5 13,5 15,5 16,

11 Technical features Ranges GCSX-4-AH TAB. B COUPING SIZE Weight GCSX-AH kg. 1,7 3,6 5,4 7,2 13,0 19,5 32,0 49,0 66,0 Weight GCSX-AH-AH kg. 1,4 2,8 4,3 5,8 10,6 15,7 26,0 40,0 54,0 Weight GCSX-AH kg. 2,5 4,9 7,4 9,8,8 26,5 43,0 66,0 65,0 Weight GCSX-AH-M kg. 1,8 3,3 5,3 7,1 13,0 19,0 31,0 48,0 88,0 Weight GCSX-AH-M kg. 2,1 4,1 6,4 8,5 15,4 22,6 27,0 57,0 77,0 Inertia PD 2 GCSX-AH kgm 2 0,0038 0,01 0,0227 0,0381 0,1029 0,1977 0,4391 0,9026 1,4657 Inertia PD 2 GCSX-AH-AH kgm 2 0,0028 0,0082 0,0162 0,0268 0,0738 0,1450 0,3064 0,6406 1,0363 Inertia PD 2 GCSX-AH kgm 2 0,0058 0,04 0,0338 0,0567 0,1524 0,29 0,6557 1,3428 2,1818 Inertia PD 2 GCSX-AH-M kgm 2 0,0038 0,0104 0,08 0,0341 0,0942 0, 0,3903 0,8188 1,3230 Inertia PD 2 GCSX-AH-M kgm 2 0,0048 0,0139 0,0273 0,0454 0,1233 0,2348 0,5230 1,08 1,7524 Torsional Stiffness GCSX-AH GCSX-AH-AH GCSX-AH Nm/ra x ,0314 0,0549 0,04 0,1265 0,2492 0,4091 0,5023 0,8388 1,0546 Torsional Stiffness GCSX-AH-M GCSX-AH-M Nm/ra x ,0304 0,0540 0,0795 0,16 0,2472 0,4042 0,4983 0,8309 1,11 Nuts tightenning torque of element blaes Nm Nuts tightenning torque of aaptator Nm Axial eflection +/- 2 2,8 3,2 3,6 4,2 4,8 5,0 7,0 8,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

12 Ranges GCSTX-4 WITH COMBINED SPACER IN STEE From HP 0,08 to HP 0,8 at 1 RPM Max angular misalignment = 1 each element Max parallel misalignment = 0.0 x (3 + S) * Allowable imensions for operational spees not higher than 1500 RPM Hubs an spacer lenghts can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D min 1 S 2 3 M HP/n 0,0 0,128 0,157 0,6 0,342 0,555 0,797 KW/n 0,059 0,094 0,119 0,188 0,1 0,408 0,586 Nm ,5 11,5 13,5 15,

13 Technical features Ranges GCSTX-4 TAB. B COUPING SIZE Weight GCSTX-4 kg., Inertia PD 2 GCSTX-4 kgm 2 0,0779 0,33 0,3196 0,7400 1,6074 2,2989 3,39 Torsional Stiffness GCSTX-4 Nm/ra x ,987 30,1 31,000 64,452 4, ,729 2,978 Nuts tightenning torque of element blaes Nm Axial eflection +/- 4,2 4,8 6,2 7,0 8,0 9,0 10,0 NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

14 Ranges GCSX/CTFX-4 WITH COMBINED SPACER IN STEE AND CENTRA BEARING From HP 0,08 to HP 0,8 at 1 RPM Max angular misalignment = 1 each element Max parallel misalignment = 0.0 x ( - S) * Allowable imensions for operational spees not higher than 1500 RPM - Hubs an spacer lenghts can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D min 1 S M HP/n 0,0 0,128 0,157 0,6 0,342 0,555 0,797 KW/n 0,059 0,094 0,119 0,188 0,1 0,408 0,586 Nm ,5 11,5 13,5 15, TYPE Complete S.K.F. bearing 1 H F Ø R SNH 511 TA K + H 211 SNH 512 TA K + H 212 SNH 513 TA K + H 213 SNH 516 TA K + H 216 SNH 5 TA + 12 K + H 2 SNH 5 TA + 12 K + H 2 SNH 522 TA K + H M 16 M 16 M M M 24 M 24 M

15 Technical features Ranges GCSX/CTFX-4 TAB. B COUPING SIZE Weight GCSX/CTFX-4 kg Inertia PD 2 GCSX/CTFX-4 kgm 2 0,1051 0,26 0,4387 0,9927 2,0430 3,1226 5,5667 Torsional Stiffness GCSX/CTFX-4XNm/ra x ,386 14,833 15,078 31,784 91,429 98, ,986 Nuts tightenning torque of element blaes Nm Axial eflection +/- 6,3 7,2 9,3 10,5 12,0 13,5 15 NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

16 Ranges GCSTX-4-FC WITH COMBINED SPACER IN STEE/COMPOSITE From HP 0,08 to HP 0,34 at 1 RPM Max angular misalignment = 1 each element Max parallel misalignment = 0.0 x (3 + S) * Allowable imensions for operational spees not higher than 1500 RPM Hubs an spacer lengths can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D min 1 S 2 3 M HP/n 0,0 0,128 0,157 0,6 0,342 KW/n 0,059 0,094 0,119 0,188 0,1 Nm ,5 11,5 13,5 15,

17 Technical features Ranges GCSTX-4-FC TAB. B COUPING SIZE Weight GCSTX-4-FC kg. 14, Inertia PD 2 GCSTX-4-FC kgm 2 0,095 0,2 0,340 0,714 1,227 Nuts tightenning torque of element blaes Nm 45 Axial eflection +/- 4,2 4,8 6,2 7,0 8,0 NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

18 Ranges HPSX-6 Ranges HPX-6 6 BOTS WITH SPACER From HP 40,08 to HP 1,3 at 1 RPM 6 BOTS WITHOUT SPACER From HP 40,08 to HP 1,3 at 1 RPM Max angular misalignment = 0 45 each element Max angular misalignment = 0 45 Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D HPSX HPX min 1 S 2 3 M HP/n 0,0 0,128 0,242 0,470 0,854 1,295 KW/n 0,059 0,094 0,8 0,345 0,628 0,952 Nm , ,5 3,5 5,5 236, ,5 11,0 11,5 13,5 15,5 16,

19 Technical features Ranges HPSX-6 HPX-6 TAB. B COUPING SIZE Weight HPSX kg. 6,2 9,5 15,5 22,8 40,0 50,0 Weight HPX kg. 4,6 7,0 11,5 15,8 26,0 41,0 Inertia PD 2 HPSX kgm 2 0,0302 0,0686 0,15 0,2969 0,6567 1,3589 Inertia PD 2 HPX kgm 2 0,0181 0,0416 0,0935 0,15 0,3846 0,7959 Torsional Stiffness HPSX Nm/ra x ,4415 0,6769 0,9221 1,5794 3,03 4,9442 Torsional Stiffness GHPX Nm/ra x ,3 2,0307 3,5316 6, ,753 19,423 Nuts tightenning torque of element blaes Nm Axial eflection HPSX +/- 3 3,4 3,8 4,2 4,6 5,4 Axial eflection HPX +/- 1,5 1,7 1,9 2,1 2,3 2,7 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

20 Ranges HBSX-8 Ranges HBX-8 8 BOTS WITH SPACER From HP 0,54 to HP 28 at 1 RPM 8 BOTS WITHOUT SPACER From HP 0,54 to HP 28 at 1 RPM Max angular misalignment = 0 30 each element Max angular misalignment = 0 30 Max parallel misalignment = 0,0085 x (3 + S) Hubs an spacer length can be moifie Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D HBSX HBX : 1 min 1 1 S 2 3 M M HP/n 0,54 1,00 1,50 2,00 2,50 3,60 5,30 7,00 9, 11,00 13,00 15,30 18,50 24,00 28,00 KW/n 0,40 0,74 1,10 1,47 1,84 2,65 3,90 5,15 6,77 8,10 9,56 11, 13,60,65,60 Nm ,5 267, , , , ,5, , , ,

21 Technical features Ranges HBSX-8 HBX-8 TAB. B COUPING SIZE Weight HBSX kg. 42, Weight HBX kg. 33, Inertia PD 2 HBSX kgm 2 0,7152 1,3461 2,3639 2,4691 4,7640 8, ,578,938 30,944 40,428 62,765 94, ,70 2,87 2,50 Inertia PD 2 HBX kgm 2 0,4862 0,9039 1,4914 1,5413 2,29 5,4245 8, ,027 18,865,490 39,590 60,826 81, ,16 139,87 Torsional Stiffness HBSX Nm/ra x ,5316 6,3 9,46 10,301 13,930 18,639 24,9 29,528 37,769 51,306 64,6 75,341 93, ,11 127,24 Torsional Stiffness HBX Nm/ra x ,281,797 36,297 47,872 60,723 82,600 1,07 143,02 2,11 227,69 270,55 315,19 3,23 491,38 567,21 Nuts tightenning torque of element blaes Nm Axial eflection HBSX +/- 3,6 4,4 4,4 4,4 5,0 5,8 6,2 6,6 7,4 8,4 9,2 9,8 10,0 11,0 12,0 Axial eflection HBX +/- 1,8 2,2 2,2 2,2 2,5 2,9 3,1 3,3 3,7 4,2 4,6 4,9 5,0 5,5 6,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

22 Ranges HBSX-8-AH 8 BOTS WITH SPACER AND ADAPTORS From HP 0,65 to HP 35 at 1 RPM Max angular misalignment = 0 30 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D min 1 S 2 3 M HP/n 0,65 1, 2,01 3,16 4,63 6,47 8,77 13,85 14,84 19,70 23,70 35,00 KW/n 0,48 0,92 1,47 2,32 3,40 4,76 6,44 10,18 10,90 14,48,42,73 Nm , , ,

23 Technical features Ranges HBSX-8-AH TAB. B COUPING SIZE Weight HBSX-8-AH kg. 59,0 86, Inertia PD 2 HBSX-8-AH kgm 2 1,2108 2,2824 3,9683 7, ,585 22,8 35,430 52,036 67, ,02 216,74 379,72 Torsional Stiffness HBSX-8-AH Nm/ra x ,0221 6, ,497 16,088 22,1 30,607 38,651 50,423 61, ,70 138,32 0,12 Nuts tightenning torque of hub Nm Nuts tightenning torque of element blaes Nm Axial eflection HBSX-8-AH +/- 3,6 4,4 4,4 5,0 5,8 6,2 6,6 7,4 8,4 9,8 10,0 12,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

24 Ranges HBSX-8-RH 8 BOTS WITH REVERSED HUBS AND SPACER IN TWO HAFS From HP 0, to HP 19,7 at 1 RPM Max angular misalignment = 0 30 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D D1 min 1 S M HP/n 0, 0,33 0,65 1, 2,01 2,70 3,16 4,63 8,77 13,85 14,34 19,70 KW/n 0,12 0,24 0,48 0,82 1,47 1,98 2,32 3,40 6,44 10,13 10,90 14,48 Nm ,2 9, , ,

25 Technical features Ranges HBSX-8-RH TAB. B COUPING SIZE Weight HBSX-8-RH kg. 8,0 11,0 29,5 47,0 68,0, Inertia PD 2 HBSX-8-RH kgm 2 0,0668 0,1383 0,75 1,5263 2,7753 3,1936 5, ,235 21,576 36,567 57,144 97,363 Torsional Stiffness HBSX-8-RH Nm/ra x ,3 2,5506 5,2974 9, ,285,111,997 35,610 63,078 81,227 97,511 4,81 Nuts tightenning torque of element blaes Nm Nuts tightenning torque of element blaes Nm Axial eflection HBSX-8-RH +/- 2,0 2,8 3,6 4,4 4,4 4,4 5,0 5,8 6,6 7,4 8,4 9,8 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

26 Ranges GCSX-8 Ranges GCX-8 8 BOTS WITH SPACER From HP 0,87 to HP 35 at 1 RPM 8 BOTS WITHOUT SPACER From HP 0,54 to HP 28 at 1 RPM Max angular misalignment = 0 30 each element Max angular misalignment = 0 30 Max parallel misalignment = 0,0085 x (3 + S) Hubs an spacer length can be moifie Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D GCSX GCX : 1 min 1 1 S 2 3 M M HP/n 0,87 1,31 2,55 3,70 5, 7,10 8, 10,40 12,00 14, 19,70 23,70 29,70 35,00 KW/n 0,64 0,96 1,87 2,72 3,86 5,22 6,47 7,65 8,82 10,88 14,48,42 21,83,73 Nm , ,5 450, , ,5 699, , ,5 30, , ,5 39,

27 Technical features Ranges GCSX-8 GCX-8 TAB. B COUPING SIZE Weight GCSX kg. 42,5 64, Weight GCX kg. 33,5 51, Inertia PD 2 GCSX kgm 2 0,7142 1,4397 2,5951 5,2112 9, ,304 21,6 30,853 40,730 63,488 96, , ,56 2,36 Inertia PD 2 GCX kgm 2 0,41 0,9708 1,5714 3,1697 5,71 8, ,314 19,021 26,066 41,330 64,105 84,7 110,22 139,95 Torsional Stiffness GCSX Nm/ra x ,5126 6, ,576,854 24,427 26,193 37,572 43,556 55,9 73,477 98, ,21 132,14 161,18 Torsional Stiffness GCX Nm/ra x 10 6,854 27,3 61,116 91, ,09 163,53 8,24 212,09 243,68 301,16 403,87 489,61 604,68 714,06 Nuts tightenning torque of element blaes Nm Axial eflection GCSX +/- 3,6 4,4 4,4 5,0 5,8 6,2 6,6 7,4 8,4 9,2 9,8 10,0 11,0 12,0 Axial eflection GCX +/- 1,8 2,2 2,2 2,5 2,9 3,1 3,3 3,7 4,2 4,6 4,9 5,0 5,5 6,0 Max spee RPM NOTES: A) Weight an inertia are calculate with steel hubs, stanar imensions an with min bore. B) Torsional stiffness is given between hub flanges for stanar imensions (spacer, elements blaes, bolts, aaptors, etc.). C) Allowable axial misalignment is relate to parallel misalignment an viceversa. D) Before bolts tightening to lock the element blaes it is avisable to apply a light oil film on the relate threas. E) Max spee (RPM) are calculate with the main components (hubs, aaptors, spacers, etc.) manufacture in carbon steel an with stanar imensions. For higher operational spees alternative materials or special esigns are available. Figures an imensions inclue in this catalogue may be varie without prior avice.

28 Ranges HBSX BOTS WITH SPACER From HP 1,9 to HP 36 at 1 RPM Max angular misalignment = 0 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D 1 S 2 3 M HP/n 1,90 2,50 3, 4,60 6, 9,00 11,50 14,00 16, 19,70 23, 31,00 36,00 KW/n 1,40 1,84 2,35 3,38 5,00 6,62 8,45 10,30 12,35 14,48,50 22, 26,47 Nm , ,5 21, , ,

29 Ranges HBSX BOTS WITH SPACER From HP 2,3 to HP 44 at 1 RPM Max angular misalignment = 0 15 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D 1 S 2 3 M HP/n 2,30 3,10 4,00 5,60 8,30 11,00 14,00,,00 24,00 29,00 37,70 44,00 KW/n 1,69 2,28 2,94 4,12 6,10 8,10 10,30 12,65 14,70,65 21,33 27,72 32,35 Nm , ,5 21, , ,

30 Ranges BE BOTS WITH SPACER FOR HIGH POWERS From HP 45 to HP 137 at 1 RPM Max angular misalignment = 0 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D 1 S 2 3 M HP/n 45,50 49,50 60,00 67,50 75,00 89,00 98,00 108,00 122,00 137,00 KW/n 33,45 36,40 44,10 49,60 55,10 65,40 72,00 79,40 89,70 100,70 Nm

31 Ranges BE BOTS WITH SPACER FOR HIGH POWERS From HP 55 to HP 148 at 1 RPM Max angular misalignment = 0 15 each element Max parallel misalignment = x (3 + S) Hubs an spacer length can be moifie TAB. A SIZE Nominal rating transmissible at 1 RPM Nominal Torque D 1 S 2 3 M HP/n 55,50 60,50 73,50 82,00 91,50 108,50 119,50 131,50 148,50 KW/n 40, 44,50 54,00 60,30 67,30 79, 87,90 96,70 109, Nm

32 Disc coupling assembling an alignment instructions Disc couplings tolerate misalignments which vary with the number of isc pack bolts. A 4 bolts couplings, for instance, allows a angular misalignment of 1 corresponing to 0,0 per (ra), value that, multiplie by the istance between the isc packs or by the coupling outer iameter, give the value of the parallel an angular misalignment in. Those imum figures are not intene to be use for initial alignment, because the allowable parallel misalignment uner working conition will vary accoring to the axial eflection an viceversa. Both those values will vary with the spee variation. Therefore it is important that initial alignment is as right as possible, in orer to allow variations of conitions uring operation. COUPING ASSEMBING Hubs have to be assemble on machine shafts so that the hub flange faces are aligne with shaft ens, except in case of ifferent instruction. The length of spacer complete of isc packs, an eventual aapters, will be then equal to the istance between shaft ens (DBSE). The hubs with bores foreseen for low interference fit have to be uniformly heate at C an quickly assemble on shafts. Do not heat locally in orer to avoi stresses an permanent istorsions. The couplings with aapters are assemble with centring calibrate steps; for assembling an isassembling the central part it is necessary to press the same in orer to get over the step. For small/meium size coupling isassembling it is sufficient to insert a screwriver between the aapter an the hub flange, taking care not amage the connection surfaces meanwhile for big size couplings, on the flanges are foreseen tappe holes for pressing bolts. When assembling isc pack of the series GC, that have loose sleeves, it is important that the roune surfaces of the same are in the isc pack sie. The higher sleeves have to be assemble into the flange large through holes. When utilising the coupling type GCSX/CTFX on cooling towers or on long spacer rive, we recoen to start the alignment proceure from the en hubs, consiering for alignment the values given by, setting up before the spacer shaft with support an then the other parts. AIGNMENT PROCEDURE The alignment proceure will vary accoring to the involve machinery. Then we are not proposing to give operation etails, but to propose misalignment limits an suggest the ways for checking the same. AXIA AIGNMENT Generally, lower is the number of coupling isc pack bolts, higher is the allowe tolerance uring initial alignment. We avice to respect the following limits, unless ifferent specific instruction are given. The istance between hub flanges (2) must be than: For 4 bolts coupling a = ± 1 For 6 bolts coupling a = ± 0,8 For 8 bolts coupling a = ± 0,5 For 10 bolts coupling a = ± 0,5 For 12 bolts coupling a = ± 0,5 PARAE AND ANGUAR AIGNMENT We have three ways for checking the parallel an angular alignment. The most use is the classic one with the ial gauge, supporte by the more innovative one with laser system. The more practical way consists in checking the gap between flanges, on both isc packs, on 360 ; that is possible if all coupling components are assemble. This metho can be use also to verify the coupling alignment time going, without removing the transmission components. With this last proceure we check simultaneously the parallel p an angular α alignments. Check flange gap at 12 an 16 o clock position (check of parallel an vertical angular alignment) Check flange gap at 9 an 3 o clock position (check of parallel an horizontal angular alignment)

33 The values S - Smin must be of pα (): For 4 bolts coupling of pα () = [α (ra) x D] where α (ra) = For 6 bolts coupling of pα () = [α (ra) x D] where α (ra) = For 8 bolts coupling of pα () = [α (ra) x D] where α (ra) = For 10 bolts coupling of pα () = [α (ra) x D] where α (ra) = For 12 bolts coupling of pα () = [α (ra) x D] where α (ra) = Then: Parallel alignment p () (ra) x a Angular alignment α () (ra) x D The state values are for general use an can vary in specific cases, for instance for couplings working at high ilatations or spees. In any case, better is the initial alignment, higher is the tolerance at unforeseen misalignment ue to structure movements. After having properly aligne the coupling, make sure that all the bolts or fixing screws are tightene. If possible check the tightening after some hours of operation too. BAANCING Usually uring balancing on flanges, of couplings for meium an high spees, are printe some references (e.g. alphabetic letters) to be respecte when assembling. For making easier the precision balancing on site we foresee some tappe hole on flanges in orer to have the possibility to a balancing weights. α () = S - Smin α (ra) = S - Smin D

34 Assembling proceure of isc packs A) All couplings have, as a peculiarity, (except the series RH) the possibility to change the flexible elements an eventual centre spacers without moving the connecte machines. B) Examples of isc pack assembling an isassembling of the coupling series HBX - HBSX - HBSX/AH - HBSX/RH - HPX - HPSX - BE Figure 1 Figure 1a Figure 1b Figure 1 = Disc pack assembling iagram Figure 1a = Short bolt isc pack assembling iagram, coupling series HBSX/AH Figure 1b = Short bolt isc pack assembling iagram, coupling series HBSX/RH C) Examples of isc pack assembling an isassembling of the coupling series GCX - GCSX - GCSX/AH - GCSTX - GCSTX/CTFX - GCSTX/FC Figure 2 Figure 2a Figure 2b Figure 2 = Disc pack assembling iagram Figure 2a = Disc pack assembling iagram, coupling series GCSX/AH Figure 2b = Disc pack assembling iagram, with tie ro