A Stainless Steel Flexible MembranesB Overload CollarsC CartridgeTransmission UnitD Anti-Fly FeatureE Anti-CorrosionTreatmentF Hubs withPuller HolesG Robust Hub BoltsH Large ShaftDiameterAccommodatedBAEIExcellent power-to-weight ratio.IHigh misalignment capability. ILow imposed forces on machinery leading to:-reduced machinery vibration-maximized bearing lifeIStainless steel flexible membranes for maximum life.ICartridge transmission unit eases assembly and givesrepeatable balance.IOverload collars are fitted to protect the flexible membranes in case of severe torsional overload.IAnti-fly retention of the spacer in the unlikely event of membrane failure.IPuller holes incorporated into hubs as standard.IUnique modular design allows correctly rated couplingto be installed, even on large diameter shafts.ISpecial thread form ensures hub bolts have all metal self-locking feature for security. This allows the bolts to be used repeatedly without compromisingtheir integrity.ICompression and jacking bolt features for easyinstallation and removal of spacer assembly as standard.Desi gnFeat uresTLKProduct Descri pt i onMetastreamT Series Couplings, pioneered byJohn Crane Flexibox, incorporate a scalloped,stainless steel, flexible membrane design. Thisdesign gives the most flexible solution for hightorque and misalignment.IEasy to fit.IMeets API 610 8th edition. Can be supplied tomeet API 671.IIntrinsic balance meets AGMA class 9.IIdeally suited for large pumps, electric motorsand turbine drives in critical process industry,marine, and power generation applications.Metastream and Flexibox are registered trademarks of John Crane.TLKT Series CouplingsCFGHDFEMAX.BOREABMAX.BOREGC D(DBSE)STANDARDHUBLARGEHUBHJ To suit applications such as taper shafts.TLKT Series CouplingsTLKTypi cal ArrangementD - Distance Between Shaft EndsCoupling (Preferred Sizes*) Max. Hub Bores**Size A B C D Min. in.E F G Standard Large H Max. J Max.0300 155 119 84 130 140 7 180 250 209 161 110 84 110 106 1430500 185 143 100 148 7 180 250 235 187 134 100 134 127 1670750 209 161 110 169 7 180 250 262 208 148 110 148 143 1851050 235 187 134 178 7 180 250 262 208 148 134 148 167 1851500 262 208 148 207 250 288 225 161 148 161 185 2002000 288 225 161 229 250 318 255 166 161 184 200 2292600 318 255 166 241 250 184 229 3350 342 286 191 255 275 212 257 4250 371 315 212 273 300 235 285 6010 417 354 234 303 325 260 320 All dimensions in mm unless otherwise stated, and should not be used for construction. Certified dimensions furnished upon request.NOTES: * These Distance Between Shaft End (DBSE) sizes are more readily available. Other lengths to suit specific shaft separations are available.** Maximum bores shown are based on standard DIN/BS rectangular keys.TLKDi mensi onal Dat a( mm)Coupling Rating kW/ Max. Continuous Peak Overload Maximum Speed - rpm Weight Transmission UnitWeight Unbored HubsSize* 1000 rpm Torque kNm Torque kNm Standard Hub Large Hub Min. DBSE - Kg Extra DBSE - Kg/m Standard - Kg Large - Kg**0300 300 2.9 5.8 15,300 11,300 8.8 16.2 8.0 21.90500 500 4.8 9.6 12,800 10,100 14.0 21.7 13.7 34.30750 750 7.1 14.2 11,300 9,000 20.1 27.2 19.3 46.61050 1,050 10.0 20.0 10,100 9,000 28.5 34.0 31.1 45.51500 1,500 14.3 28.6 9,000 8,200 38.7 41.8 42.2 58.02000 2,000 19.1 38.2 8,200 7,400 51.0 49.0 54.0 77.02600 2,600 24.8 49.6 7,400 68.0 60.0 71.0 3350 3,350 32.0 64.0 6,900 82.0 68.0 101.0 4250 4,250 40.5 81.0 6,300 107.0 81.0 135.0 6010 6,010 57.3 115.0 5,600 150.0 101.0 189.0 For the complete coupling, weights of two appropriate hubs plus a transmission unit are required. The standard parallel bore machining tolerance is H7, to give a light interference on the shaft. Keyways will be cut to DIN 6885, BS 4235 Pt. 1 (metric) or BS 46 Pt. 1(inch).NOTES: * Larger sizes rated up to 49,000 kW/1000 rpm are available. Consult John Crane for details.** Additional weight of transmission unit also included.TLKTechni cal Dat a Suggested service factors for electric motor, steam turbine, andgas turbine drivers are given below.TLKT Series CouplingsSel ect i onProcedureServi ceFact orSF1. Select appropriate service factor SF.2. Calculate coupling rating R fromR = kW x 1000 x SFNwhere:kW = driver rated power N = speed (rev./min.)3. Select a coupling with the same or higher rating.4. Check that the hub bore capacity is suitable. Specify standard or large hubs.5. Check peak torque capability is suitable for application.6. Check speed capability.7. Check whether additional dynamic balancing is required.8. Specify Distance Between Shaft Ends (DBSE).Example: 900 kW electric motor to centrifugal pump at 1500 rpmR = 900 x 1000 x 11500R = 600 kW per 1000 rpmSelection: TLKS - 0750Standard hub bore up to ...110mm Large hub bore up to ........148mmPeak torque capability .......14.3kNm Additional dynamic balancing should not be required.Avai l abl eOpt i onsISpark-resistant couplings for hazardous zone operation.ISpecial materials for low temperature applications and/or higher corrosion resistance. IElectrical insulation.ITorque limiting and shear pin designs.ILimited end float and axially adjustable designs.ITorsional tuning.ILarger sized TLK couplings available up to 49,000 kW/1000rpm rating.Consult John Crane for any other special requirements.Metastream couplings can be adapted to suit virtually all powertransmission coupling needs.Torque Variation Service FactorConstant Torque Centrifugal Pump 1.0*Centrifugal CompressorAxial CompressorCentrifugal BlowerSlight TorqueScrew Compressor 1.5Fluctuation Gear, Lobe andVane PumpsForced Draft FanMedium Duty MixerLobe BlowerSubstantial Torque Reciprocating Pumps 2.0FluctuationsHeavy Duty MixersInduced Draft FansThe examples given are for typical machines and are empiricallybased guidelines. Knowledge of actual torque characteristics mayindicate a different service factor. For example, variable-speedelectric motors may exhibit a fluctuating torque characteristic.Consult John Crane for advice.*Use a minimum service factor of 1.25 on electric motor drives through a gearbox.Correct installation and alignment of couplings is essential forreliable machinery performance.John Crane supplies a variety of shaft alignment equipment andoffers alignment training courses.NOTES:* Meets NEMA end float specification without modification.** Values based on angular deflection of 1/3oper end and minimum DBSE. Greater misalignment accommodation is possible by increasing dimension D.The angular and axial restoring forces in the table below left are givenat maximum deflections. The chart can be used to determine forcesacross the full deflection range. The nonlinear characteristics can detune a system to prevent high amplitude axial vibration.TLKT Series CouplingsCoupl i ngAl i gnmentThe inherent balance of the TLK range meets AGMA standard 9000-C90 class 9. The adjacent chart relates the TLK sizes tooperating speeds on the basis of this AGMA class 9 characteristic to provide a general guide to determine if dynamic balanceimprovement is necessary.When balancing improvement is requested, John Crane willdynamically balance the transmission unit. Hubs may also bedynamically balanced, and this will usually be carried out aftermachining the bore but before cutting single keyways.Operating Speed (in thousand rpm)TLK Coupling Size1 3 5 7 15 9 30 2 4 6 10 8 204250601033502600200015001050075005000300BalanceImprovementNot Generally RequiredBalanceImprovement May Be RequiredAGMA Class 9% Max. Displacement% Max. Axial Thrust% Max. Restoring Moment10050ANGULARAXIAL100 5000FORCE VS. DEFLECTIONBal anceRecommendat i onsEuropeSlough, UKTel:44-1753-224000Fax:44-1753-224224Middle East, Africa, AsiaDubai, United Arab EmiratesTel:971-4-3438940Fax: 971-4-3438970For your nearest John Crane facility, please contact one of the locations above.If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection anduse. In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without prior notice. It is dangerous to smokewhile handling products made from PTFE. Old and new PTFE products must not be incinerated.2001 John Crane Print 7/02 www.johncrane.com ISO 9001, ISO 14001, ISO/TS 16949 certified. Details available on request S-TLK/EngJohn CraneLatin AmericaSo Paulo, BrazilTel:55-11-3371-2500Fax: 55-11-3371-2599TLK MISALIGNMENTMax. Axial Max. ParallelMisalignment * Misalignment **Coupling Equivalent RestoringSize+_mm Thrust kN mm Moment Nm0300 1.4 1.2 0.4 250500 1.7 2.2 0.5 400750 1.9 2.8 0.6 651050 2.2 4.0 0.6 1001500 2.4 5.0 0.7 1502000 2.7 6.0 0.8 1902600 3.0 7.1 0.8 2503350 3.2 8.3 0.8 3204250 3.5 9.5 0.9 4106010 3.9 11.4 1.0 580North AmericaMorton Grove, Illinois USA1-800-SEALINGTel:1-847-967-2400Fax: 1-847-967-3915