Martin Coupling Brochure

1 C-1 COUPLINGSI ndexSECTIONCCOUPLINGSPRODUCTPAGEINDEX ..C-1 Coupling COMPARISON ..C-2 QUADRA-FLEX ..C-4 C-24 Sleeve Selection ..C-7 C-8 Selection Procedure ..C-9 Sleeves ..C-14 Flanges ..C-15 C-19 Keyseat Dimensions ..C-18 Spacer Flanges ..C-20 C-23 Installation ..C-24 CHAIN Coupling ..C-25 C-27 Bored-To-Size ..C-26QD ..C-26 Taper Bushed ..C-26 Coupling Selection ..C-27 Plain Bore ..C-27 Covers ..C-27 JAW Coupling ..C-28 C-30 Horsepower Ratings ..C-29ML & MS Hubs ..C-30ML & MS Spiders ..C-30 Martin -FLEX ..C-31 C-32 Stock Sizes ..C-31 Engineering ..C-32C-2 COUPLINGSC ouplingComparisonCouplingsComparisonChar tShock LoadVibrationTemperatureTypeCapacityDamp eningRangeFahrenheitCHAINNONENONE-30 225 JAWMODERATEMODERATE-60 250 1 MartinFLEX EXCELLENTEXCELLENT-45 210 2 QUADRA-FLEX EXCELLENTEXCELLENT-50 275 3 MODERATE-30 275 4 1 With Hytrel Spider 2 Neoprene Element 3 TPR Sleeve 4 With EPDM SleeveAllowableConnectingMax.

2 H. 100 RPMRPMR angeAngleParallelCHAINROLLER CHAIN70050003 8 61 8 2 .015 JAWELASTOMERIC 8 25 8 1 .015 MartinFLEX ELASTOMERIC 8 31 2 4 1 8 QUADRA FLEX ELASTOMERIC SLEEVE11592001 2 6 .330 .062C-3 COUPLINGSC ouplingsWhateverYourNeedForCouplings MartinHasThemMartinOffers Two Complete Lines of Jaw Couplings One for Greater Horsepower and One for flexible couplingssmoothly transmit power whilecompensating for shaftmisalignment to 4 , parallelmisalignment to 1/8 and endfloat to 5/16 . The two pieceflange design provides quick andeasy installation and theelastomeric element absorbsshock and torsional vibrationthrough a wide the Most Complete Line ofChain Couplings A Proven Design Which Offers Long Life, Torsional Flexibility,Ease of Installation, and Withstands Misalignment, Shock, and TypeMS TypeS/BBSTBQDA luminumPlasticC-4 COUPLINGSQUADRA-FLEX 4-WayFlexingQuadra-Flex FLEXIBLE COUPLINGSS tocked NationwideIn Sizes 3 Through 16 Styles J, S, B, andSC SpacersC-5 COUPLINGSQUADRA-FLEX 4-WayFlexingMartinQUADRA-FLEX Couplings, Non Lubricated,Maintenance Free, Easy and Quick InstallationHandles All Combinations of Shock, Vibration.

3 And MisalignmentQUADRA-FLEX couplingsabsorb parallel misalignmentwithout wear and withminimal loss of amount of parallel offsethandled varies by size on the size 5 up to .062 on the size 16. This minimizesthe radial loads on bearingswhen parallel axial flexibility of thesleeve allows the QUADRA-FLEX Coupling to accept alimited amount of end serves to reduce thrustloads transferred to units willaccept axial movement ofapproximately1/8 .Due to the flexingcharacteristics of the sleeveand the locking action of theteeth, QUADRA-FLEX couplings easily handleangular misalignment up to 1degree without anyappreciable sleeves aretorsionally resilient and arewell suited to absorbingshocks and dampeningvibrations that wouldotherwise be transmittedbetween the Coupling DisassemblyType SC Spacer FlangeMartinoffers the first true drop-out spacer assembly for the4 JSC spacer Coupling .

4 The center portion of the spacer can betaken out, just as in the 5SC thru 14SC, by simply removingfour cap screws in each hub. The couplings center section canthen be lifted out and the pump gaskets exposed. Flats on thespacer hubs facilitate turning shafts with a SC Spacer Couplings feature all standardspacing requirements for the pump industry. Spacer sizesrange from sizes 4 thru J and S FlangesType B FlangesBored-to-size flanges are manufactured for a slip fit on standardshafting. Available from stock in a wide range of shaft from high strength cast iron to fit standard QDbushings in sizes 6 thru NomenclatureJ SINTERED STEEL, BORED-TO-SIZESCAST IRON, BORED-TO-SIZEBCAST IRON, QD BUSHEDSCSPACER Coupling FLANGESHREGULAR LENGTHHSSHORT LENGTHJEMTPR 1-PIECE SOLID, THERMOPLASTICJEMSTPR 1-PIECE SPLIT, THERMOPLASTICEMTPR 2-PIECE W/RETAINING RINGEEPDM 2-PIECE W/RETAINING RINGNNEOPRENE 2-PIECE W/RETAINING RINGHHYTREL 1-PIECE SOLIDHSHYTREL 2-PIECETypeDescriptionTypeDescriptionTyp eDescriptionQUADRA-FLEX couplings come in a variety of styles anddesigns to meet specific customer needs.

5 These includeflanges and sleeves of various types and materials. The totalproduct line includes 13 sizes varying in torque ratings up to72,000 ordering QUADRA-FLEX couplings, the following basicprocedure should help expedite order processing. For couplingflanges, give the basic Coupling size, then the letter for the typeflange followed by the bore size required. For Coupling sleeves,give the Coupling size followed by the letter(s) designating thetype and material required. (See above)The following are various examples for reference:Example:Type J FlangeSizeFlangeBore5J x 3/4 5J3 4 7S x 30mm7S30mm(Note:Bored-to-size flanges are furnished with standardkeyway and 2 setscrews unless specified otherwise.)

6 Example:Type B FlangeSizeFlangeBushing8B SH8 BSH(Note:The SH bushing with required bore size should bespecified separately.)Example:SleevesSizeStyle & Material8 JEM8 Solid, TPR13E132 Piece, EPDM(Note:Unless specified, TPR (3 thru 12) or EPDM (13 thru 16)will be supplied.)Example:Complete spacer coupling16EM(6 TPR 2 Piece Sleeve)26SC35(Flanges for 31/2 dropout)16H x 1 (6 Spacer Hub for 1 Bore)16H x 11/8 (6 Spacer Hub for 11/8 Bore) #6 Currently Supplied in Cast IronFlangesSleevesHubs (For SC flanges)C-8 COUPLINGSS leeveSelectionTPR(Sizes 3-12)QUADRA-FLEX couplingsare usually supplied with TPRsleeves in sizes 3-12. TPR isa general use sleeve whichcombines the characteristicsof both EPDM & Neopreneinto one.

7 These sleevesoperate within a temperaturerange from -50 F to +275 F(-46 C to +135 C). Torsionalflexibility is 15 .*HYTREL (Sizes 6-14)Hytrel sleeves are moldedspecifically for high torqueapplications. The type H willtransmit approximately fourtimes as much power as anequivalent TPR, EPDM, orNeoprene sleeve. Hytrel hasan operating temperaturefrom -65 F to +250 F (-54 Cto +121 C). Torsionalflexibility is 7 .Note: Do not use a Hytrelsleeve as a replacement for aTPR, EPDM, or (Sizes 13-16)QUADRA-FLEX couplingsare usually supplied withEPDM rubber sleeves in sizes13-16. EPDM is a general usesleeve and can operate withina temperature range from-30 F to +275 F (-34 C to+135 C).

8 Torsional flexibilityis 15 .NEOPRENE(Sizes 11-16)Neoprene flexible sleeves arealso available in sizes sleeves offer a higherresistance than EPDM andare self-extinguishing. Oper-ating temperature range forthis sleeve is 0 F to +200 F(-18 C to +93 C). Torsionalflexibility is 15 .QUADRA-FLEX Coupling sleeves are available in fourdifferent types of compounds. These include TPR(ThermoPlastic Rubber) in types JEM, JEMS, EM; EPDMR ubber in type E; Neoprene in type N; Hytrel in type H and determine the sleeve best suited for the application, thematerial characteristics are given To:TPREPDMN eoprene Hytrel AcetoneAABBA mmonia, AnhydrousBTANA mmonium HydroxideSolutionsTAA(158F)TASTM hydrocarbon test fluidNCXAASTM oil no.

9 1 BCAAASTM oil no. 3 BCB(158F)AASTM reference fuel ABCAAASTM reference fuel BBCCAASTM reference fuel CBXCBB enzeneCCCBB utaneBBAAC arbon TetrachlorideXCCCC hlorobenzeneCXXXC hloroformXCCCC hromic Acid, 10-50%TTCND owtherm A SolventXNBNE thyl AlcoholAAA(158F)AEthylene GlycolAAA(158F)AFuel OilBXAAG asolineBB-CBAG lycerineATA(158F)AHydraulic OilsBNAAH ydrochloric Acid, 20%ATABH ydrogen Peroxide, 88 %NTBTR esistance To:TPREPDMN eoprene Hytrel IsopropylATAAK eroseneBXBTL acquer OilsBXB(158F)AMethyl AlcoholATA(158F)AMineral OilBXAAN aphthaBCCAN itric Acid, 10%ATBBN itrobenzeneTACCP henolTTBCP hosphoric Acid, 20%ATTNP hosphate EstersAACAP ickling Solution(20% Nitric Acid, 4% HF)NXB-CXSoap SolutionsATA(158F)ASodium Hydroxide, 20%AAAAS tearic AcidTTB(158F)TSulfuric Acid, up to 50%ATA(158F)ASulfuric Acid, up to 80%ATB-CCTannic Acid, 10%TTATT olueneCCCBT richloroethyleneCXCCT urpentineBCCNW aterAA(158F) A(212F) A(158F)XyleneCCXBS leeveChemicalResistanceA Fluid has little or no effectB Fluid has minor to moderate effectC Fluid has severe effectN No evaluation has been No data.

10 Likely to be compatibleX No data; not likely to be compatible*Hytrel is a Registered Trademark of DupontC-9 COUPLINGSS electionProcedureSelectionProcedureWhen the driver is an electric motor with standard Service Factor (SF) Symbol based onequipment listed on page proper Service Factor from chart at top ofpage to page C-12 and C-13 for proper selection ofcoupling. Based on chemical resistance and operatingenvironment found on page C-8, select from chart the type ofsleeve material. Find RPM of motor, then, in the column forservice factor determined in Step 2, read down to thecorresponding horsepower of motor being used as the number listed is the correct Coupling :A Coupling is needed to connect a 25 HPstandard electric motor to a lumber log haul at Service Factor Symbol H2.