1、AGMAINFORMATIONSHEETAGMA922-A96(This Information Sheet is NOT an AGMA Standard)AGMA 922-A96AMERICAN GEAR MANUFACTURERS ASSOCIATIONLoad Classification and ServiceFactors for Flexible CouplingsiiLoad Classification and Service Factors for Flexible CouplingsAGMA 922-A96CAUTION NOTICE: AGMA technical pu
2、blications are subject to constant improvement,revision, or withdrawal as dictated by experience. Any person who refers to any AGMAtechnicalpublicationshouldbesurethatthepublicationis thelatestavailablefromtheAs-sociation on the subject matter.Tables or other self-supporting sections may be quoted o
3、r extracted in their entirety.Creditlines shouldread:extractedfrom AGMA922-A96, Load Classification and ServiceFactors for Flexible Couplings, with the permission of the publisher, the American GearManufacturers Association, 1500 King Street, Suite 201, Alexandria, Virginia 22314.Approved September
4、18, 1996ABSTRACTThis information sheet provides suggested load classifications and related service factors that are most fre-quently used for various flexible coupling applications. Typical applications using smooth prime movers arelisted. Special considerations which may involve unusual or severe l
5、oading are also discussed.Published byAmerican Gear Manufacturers Association1500 King Street, Suite 201, Alexandria, Virginia 22314Copyright 1996 by American Gear Manufacturers AssociationAll rights reserved.No part of this publication may be reproduced in any form, in an electronicretrieval system
6、 or otherwise, without prior written permission of the publisher.Printed in the United States of AmericaISBN: 1-55589-680-4AmericanGearManufacturersAssociationAGMA 922-A96iiiContentsPageForeword v.1 Scope 12 References 13 Responsibility 1.4 Load classification 15 Service factors 6.Tables1 Load class
7、ification and service factors 22 Load classifications and typical service factors for flexible couplingapplications 2.AGMA 922-A96ivThis page is intentionally left blank.AGMA 922-A96vForewordTheforewordis providedfor informationalpurposes only andshouldnotbeconstruedas apart of AGMA 922-A96, Load Cl
8、assification and Service Factors for Flexible Couplings.This document was developed originally as standard AGMA 514.01 by the FlexibleCoupling Product Group of AGMA to show some of the applications for flexible couplingsandtoserveas aguidetothecharacter oftheloads foundintheseapplications. Itmadenoa
9、ttempttoincludeallpossibleapplicationsforflexiblecouplings,butasufficientnumberandvariety were covered to serve as a guide for proper application.The load classification and service factors shown in this document vary for some types ofequipment from identical or similar equipment as shown in other A
10、GMA Standards. Suchvariations are not errors or discrepancies, but have been determined based on design,construction and limitations of the flexible coupling.ThefirstdraftofAGMA514.01waspreparedbytheFlexibleCouplingTechnicalCommitteein January 1968. It was approved by Flexible Coupling Product Group
11、 7 on October 20,1968. AGMA 514.01 became an official AGMA standard on May 27, 1969. AGMA 514.02was a revision of AGMA 514.01. The major change was the addition of Service Factors totable 2. AGMA 514.02 was approved by the AGMA Membership on October 22, 1971.The Flexible Couplings Committee voted to
12、 change the standard to an information sheet.The only changes made were editorial, necessary to reflect an information sheet.Suggestions for theimprovementofthis informationsheetwillbe welcome.They shouldbesent to the American Gear Manufacturers Association, 1500 King Street, Suite 201,Alexandria, V
13、irginia, 22314.AGMA 922-A96viThis page is intentionally left blank.AGMA 922-A96viiPERSONNEL of the AGMA Flexible Couplings CommitteeChairman: Donald B. Cutler Rexnord CorporationVice Chairman: Glenn Pokrandt The Falk CorporationACTIVE MEMBERST.G. Fromknecht Zurn Industries, Inc.J.R. Mancuso Kop-Flex
14、, Inc.J.O. Tennies Renold, IncR.G. Thompson Deck Manufacturing CorporationASSOCIATE MEMBERSS. Chen Kop-Flex, IncP. Dixon Metal Improvement Company.T. Hewitt Rexnord Corporation.D.W. Hindman Rexnord CorporationV. Ivers Xtek, Inc.E.C. Kus Deck Manufacturing CorporationD. Lindsay Emerson Power Transmis
15、sion.J.W. Mahan Lovejoy, Inc.J.O. Mays Rexnord Corporation.R.E. Munyon Kop-Flex, Inc.J. Paluh Zurn Industries, IncS.L. Pearson Mobil Oil Corporation.A. E. Phillips Dodge/Rockwell Automation.W. Pizzichil Philadelphia Gear CorporationR. Post Renold, Inc.D. Reynolds Dodge/Rockwell Automation.E.I. Rivin
16、 Wayne State UniversityT.M. Schatzka Lovejoy, Inc.J.F. Slusarick Huffman Corporation.R. Whitney Emerson Power Transmission.AGMA 922-A96viiiThis page is intentionally left blank.1AGMA 922-A96AMERICAN GEAR MANUFACTURERS ASSOCIATIONAmerican Gear ManufacturersAssociation -Load Classification andService
17、Factors forFlexible Couplings1 ScopeThe purpose of this information sheet is to list andclassify the character of the load, and the suggestedservicefactor forvarious applications,sothatproperflexible coupling selection can be made for a givenservice.1.1 ApplicabilityThis information sheet is applica
18、ble to standardcouplings as defined in AGMA 510.03.1.2 ExceptionsItisrecognizedthattherearecouplingsfor whichtheservicefactor values shown inthis informationsheetare not necessarily applicable. For specific applica-tion information, refer to the manufacturers catalogor recommendations. AGMA acknowle
19、dges theright of any manufacturer to use different selectionmethods, or service factors, or both for their specificproduct.2 ReferencesThe following documents contain provisions which,throughreferenceinthistext,constituteprovisionsofthe information sheet. At the time of publication, theeditions were
20、 valid. All publications are subject torevision, and the users of this information sheet areencouraged to investigate the possibility of applyingthe most recent editions of the publications listed.AGMA 510.03, Nomenclature for Flexible Cou-plings (1984).3 Responsibility3.1 ApplicationsThe manufactur
21、ers published warranty applies tothe flexible couplings described in this publication.The following conditions are typical and are beyondthe manufacturers responsibility.- The flexible coupling is protected as pre-scribed by the manufacturer, in either inside oroutsidestorage,betweentheintervalofits
22、receiptby the buyer and actual installation;- The flexible coupling is properly installedand maintained in accordance with themanufacturers instructions;- The system of connected rotating parts iscompatible, free from critical speed, torsional andother type vibration within the specified operatingsp
23、eed range, no matter how induced;- The imposed torsional load, speed andmisalignment are within the capacity limits forwhich the units were sold, or as specified in thepurchase contract.3.2 Systems analysisResponsibility for system analysis in compliancewith these requirements rests with the purchas
24、er ofthe flexible coupling.3.3 ExceptionsExceptions to any of the foregoing provisions are amatter of specific contractual agreements.NOTE: Servicefactorsandloadclassificationsforanyequipmentusedtomoveorconveypeopleisbeyondthe intent of this information sheet. Consult themanufacturer for recommendat
25、ions.4 Load classificationThe broad categories of load classification areshown in table 1. They are classified in the threecommonly recognized load classes: Uniform (U),Moderate Shock (M), and Heavy Shock (H). Theseloadclassificationsarebasedonnormaloperationofthe drive system. Load classification f
26、or variousapplications are given in table 2.AGMA 922-A962Table 1 - Load classification and service factorsLoad classification Normal service factor range1)Uniform (U) 1.0 - 1.5Moderate Shock (M) 1.5 - 2.5Heavy Shock (H) 2.5 and overNOTE:1)The range of values signifies increasing reliability, longer
27、life or more severe duty requirements. See 5.1.Table 2 - Load classifications and typical service factors for flexible coupling applicationsApplicationLoad classification(see 5.1 and table 1)Typical service factor(see 5.2)AgitatorsPure liquidsLiquids and solidsLiquids - variable densityUUU1.001.251.
28、25BlowersCentrifugalLobeVaneUUU1.001.501.25Brewing and distillingBottling machineryLauter tubUU1.001.25Briquetter machines M 2.00Can filling machines U 1.00Cane knives M 2.00Car dumpers M 2.50Car pullers - intermittent duty U 1.50Clay working machinery M 1.75CompressorsCentrifugalLobeReciprocating -
29、 multi-cylinderUUM1.251.502.00Conveyors - uniformly loaded or fedApronAssemblyBeltBucketChainFlightOvenScrewUUUUUUUU1.251.001.001.251.251.251.501.25Conveyors - heavy duty not uniformly fedApronAssemblyBeltBucketChainFlightOvenMUUUUUU1.501.251.251.501.501.501.50(continued)AGMA 922-A963Table 2 (contin
30、ued)ApplicationLoad classification(see 5.1 and table 1)Typical service factor(see 5.2)Conveyors - heavy duty (continued)ReciprocatingScrewShakerMMH2.501.502.50Cranes and hoistsMain hoistsReversingSkip hoistsTrolley driveBridge driveSlopeMMMMMM2.002.001.751.751.751.50CrushersOreStoneHH2.752.75Dredges
31、Cable reelsConveyorsCutter head drivesJig drivesManeuvering winchesPumpsScreen driveStackersUtility winchesMUMMMMMMM1.751.502.252.251.751.751.751.751.50ElevatorsBucketCentrifugal dischargeFreightGravity dischargeMMMU1.751.502.001.50FansCentrifugalCooling towersForced draftInduced draft without dampe
32、r controlUMUM1.002.001.502.00FeedersApronBeltDiscReciprocatingScrewUUUHU1.251.251.252.501.25Food industryBeet slicerCereal cookerDough mixerMeat grindersBottling, can filling machineMUMMU1.751.251.751.751.00Generators (not welding) U 1.00Hammer mills M 2.00Laundry washersReversing M 2.00Laundry tumb
33、lers M 2.00(continued)AGMA 922-A964Table 2 (continued)ApplicationLoad classification(see 5.1 and table 1)Typical service factor(see 5.2)Lumber industryBarkers - drum typeEdger feedLive rollsLog haul - inclineLog haul - well typeOff bearing rollsPlaner feed chainsPlaner floor chainsPlaner tilting hoi
34、stSlab conveyorSorting tableTrimmer feedMMMMMMMMMMUM2.002.002.002.002.002.001.751.751.751.501.501.75Machine toolsBending rollPlate planerPunch press - gear drivenTapping machinesOther machine toolsMain drivesAuxiliary drivesMMMMMU2.001.502.002.501.501.25Metal millsDraw bench - carriageDraw bench - m
35、ain driveForming machinesSlittersTable conveyorsNon-reversingReversingWire drawing & flattening machineWire winding machineMMMUMHMM2.002.002.001.502.252.502.001.75Mills, rotary typeBallCement kilnsDryers & coolersKilnsPebbleRodTumbling barrelsMMMMMMM2.252.002.002.002.002.002.00MixersConcrete mixersD
36、rum typeMM1.751.50Oil industryChillersOil well pumpingParaffin filter pressRotary kilnsUMMM1.252.001.752.00Paper millsBarker auxiliaries, hydraulicBarker, mechanicalBarking drum (spur gear only)Beater & pulperMMMM2.002.002.251.75(continued)AGMA 922-A965Table 2 (continued)ApplicationLoad classificati
37、on(see 5.1 and table 1)Typical service factor(see 5.2)Paper mills (continued)BleacherCalendersConverting machines, except cutters, platersCouchCutters, platersCylindersDryersFelt stretcherFelt whipperJordansLog haulPressesReelStock chestsSuction rollWashers and thickenersWindersUMUMMMMUMMMMUUMUM1.00
38、2.001.501.752.001.751.751.252.001.752.002.001.501.501.751.501.50Printing presses M 1.50PullersBarge haul M 2.00PumpsCentrifugalReciprocatingDouble actingSingle acting1 or 2 cylinders3 or more cylindersRotary - gear, lobe, vaneUMMMU1.002.002.251.751.50Rubber industryMixer - BanburyRubber calenderRubb
39、er mill (2 or more)SheeterTire building machinesTire & tube press openersTubers and strainersMMMMMUM2.502.002.252.002.501.002.00ScreensAir washingRotary - stone or gravelTravel water intakeUMU1.001.501.25Sewage disposal equipmentBar screensChemical feedersCollectors, circular or straight lineDewater
40、ing screensGrit collectorsScum breakersSlow or rapid mixersSludge collectorsThickenersVacuum filtersUUUUUUUUUU1.251.251.251.251.251.251.251.251.251.25(continued)AGMA 922-A966Table 2 (concluded)ApplicationLoad classification(see 5.1 and table 1)Typical service factor(see 5.2)Steering gear U 1.00Stoke
41、rs U 1.00Textile industryBatchersCalendersCard machinesCloth finishing machines(washers, pads, tenters)(dryers, calenders, etc.)Dry cansDryersDyeing machineryLoomsManglesNappersSoapersSpinnersTenter framesWinders (other than batchers)UMMUMMUMUUUMUM1.251.751.501.501.751.501.251.501.251.251.251.501.50
42、1.50Windlass M 1.755 Service factorsNormal service factor range for each loadclassification,table1,isgivenasarangeofvaluestoindicate the scope of the load classificationdesignation and in recognition that different types offlexible couplings may be affected differently byloading. It is recognized th
43、at precise definition ofload classification cannot be made for manyapplications, as evidenced by the listing of theservice factor value 1.5 in both the Uniform andModerate Shock classifications, and the servicefactor value 2.5 in both the Moderate Shock andHeavy Shock classifications. Selection of a
44、 servicefactorvaluewithin - orbeyond - therangeshouldbebased upon the degree of reliability desired or uponhow the specific system may differ from “normal” or“average” conditions for the type of application.5.1 Typical applicationsThe service factors listed in tables 1 and 2 areintended as a general
45、 guide for applications withsmooth prime movers such as electric or hydraulicmotors and steam turbines.Servicefactorslistedintable2arethevaluesmostfrequently used for the various applications listed.They are based on normal operation of the drivesystem. Higher or lower values may be useddepending up
46、on the degree of reliability desired orupon how the specific system may differ from“normal” or “average” conditions for the typeapplication.5.2 Special applicationsService factors listed in tables 1 and 2 represent thenormalrelationshipbetweenflexiblecouplingdesignpower rating and prime mover contin
47、uous powerrating as listed on its nameplate. Applicationsinvolving unusual or severe loading should becarefully reviewed with the coupling manufacturerbefore a service factor is applied.5.2.1 Shock loadingApplications withhigh-torque motors and motors forintermittent operations, and applications whe
48、reextreme repetitive shock occurs or where high-energy loads must be absorbed, as when stalling,require special considerations and may not becoveredby theloadclassificationsor servicefactorsgiven in tables 1 and 2.5.2.2 Systems with brakesWhen prime movers are equipped with brakes, andthe torque rating of the brakes exceeds the rating ofthe prime mover, the rating of the brake dictates theselection of the flexible coupling.This page is intentionally left blank.PUBLISHED BYAMERICAN GEAR MANUFACTURERS ASSOCIATION1500 KING STREET, ALEXANDRIA, VIRGINIA 22314
