1、ANSI/AGMA9002-B04ANSI/AGMA 9002-B04Revision ofANSI/AGMA 9002-A86AMERICAN NATIONAL STANDARDBores and Keyways for Flexible Couplings(Inch Series)Copyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without licens
2、e from IHS-,-,-iiBores and Keyways for Flexible Couplings (Inch Series)ANSI/AGMA 9002-B04Approval of an American National Standard requires verification by ANSI that the require-ments for due process, consensus, and other criteria for approval have been met by thestandards developer.Consensus is est
3、ablished when, in the judgment of the ANSI Board of Standards Review,substantial agreement has been reached by directly and materially affected interests.Substantial agreement means much more than a simple majority, but not necessarily una-nimity. Consensus requires that all views and objections be
4、considered, and that aconcerted effort be made toward their resolution.The use of American National Standards is completely voluntary; their existence does notin any respect preclude anyone, whether he has approved the standards or not, frommanufacturing, marketing, purchasing, or using products, pr
5、ocesses, or procedures notconforming to the standards.The American National Standards Institute does not develop standards and will in nocircumstances give an interpretation of any American National Standard. Moreover, noperson shall have the right or authority to issue an interpretation of an Ameri
6、can NationalStandard in the name of the American National Standards Institute. Requests for interpre-tation of this standard should be addressed to the American Gear ManufacturersAssociation.CAUTION NOTICE: AGMA technical publications are subject to constant improvement,revision, or withdrawal as di
7、ctated by experience. Any person who refers to any AGMAtechnical publication should be sure that the publication is the latest available from the As-sociation on the subject matter.Tables or other self-supporting sections may be referenced. Citations should read: SeeANSI/AGMA 9002-B04, Bores and Key
8、ways for Flexible Couplings (Inch Series), pub-lished by the American Gear Manufacturers Association, 500 Montgomery Street, Suite350, Alexandria, Virginia 22314, http:/www.agma.org.Approved May 5, 2005ABSTRACTThis standard describes sizes and tolerances for straight and tapered bores and the associ
9、ated keys and key-ways, as furnished in flexible couplings. The data in the standard considers commercially standard couplingbores and keyways, not special coupling bores and keyways that may require special tolerances.Published byAmerican Gear Manufacturers Association500 Montgomery Street, Suite 3
10、50, Alexandria, Virginia 22314Copyright 2005 by American Gear Manufacturers AssociationAll rights reserved.No part of this publication may be reproduced in any form, in an electronicretrieval system or otherwise, without prior written permission of the publisher.Printed in the United States of Ameri
11、caISBN: 1-55589-841-6AmericanNationalStandardCopyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04AMERICAN NATIONAL STANDARDiii AGMA 2004 - All rights reservedCont
12、entsPageForeword iv.1 Scope 1.2 Normative references 1.3 Symbols and definitions 1.4 Straight (finished) bored hubs 25 Tapered bore hubs 46Keys 47 Hub keyways 5.Bibliography 22.AnnexesA Straight bore inspection methods 10B Tapered bore inspection procedure and plug gauge accuracyrequirements 11C Rec
13、ommended design practice for tapered shafts used with flexiblecouplings 14.D Keyway measurement 16E Coupling hub bores required to obtain ANSI B4.1, Preferred limits andfits for cylindrical parts, FN2 class interference fits with AGMA 9002-B04recommended shaft tolerances 21Figures1 Tapered bore requ
14、irements 4.2 Tapered bore drawing dimensions 5.3 Keyway dimensions 6.4Keywayofset 65 Keyway lead 8.6 Keyway parallelism 8.7 Multiple keyway index 8.8 Keyway fillet radius and key chamfer detail 9.Tables1 Symbols 1.2 Shaft to hub fits for cylindrical shaft in straight bore hub (inches) 33 Standard to
15、lerances of finished straight bores over 18 inch diameterfor interference fit 4.4 Key size and tolerance 55 Recommended hub keyway (inches) 66 Maximum keyway lead values 77 Multiple keyway index tolerances 8.8 Values for keyway fillet radius and suggested key chamfer 9.Copyright American Gear Manufa
16、cturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04 AMERICAN NATIONAL STANDARDiv AGMA 2004 - All rights reservedForewordThe foreword, footnotes and annexes, if any, in this document are provi
17、ded forinformational purposes only and are not to be construed as a part of ANSI/AGMA9002-B04, Bores and Keyways for Flexible Couplings (Inch Series).ANSI/AGMA 9002-A86 consolidated and superseded the information found in AGMA511.02, Bore and Keyway Sizes for Flexible Couplings, AGMA 512.03, Keyways
18、 for FlexibleCouplings, and AGMA 513.01, Taper Bores for Flexible Couplings.The intent of ANSI/AGMA 9002-A86 was to offer designers and users standard dimensionsand tolerances for inch bores, keys and keyways for flexible couplings. In general, thedimensions contained in ANSI/AGMA 9002-A86 represent
19、ed the dimensions andtolerances used within the industry for pre-engineered couplings. It proved useful inestablishing dimensions and tolerances for custom engineered coupling products.ANSI/AGMA 9002-A86 was developed after intensive study of previously existingstandards, literature, design practice
20、s and manufacturing procedures for bores andkeyways of unmounted flexible coupling hubs and similar components. The study revealedthat much of the data contained in previously existing standards and specifications waspredicated upon practice and procedures that pertained more to keyways in the shaft
21、members than to keyways in coupling hub bores. The information contained withANSI/AGMA 9002-A86 did not necessarily agree with some commonly usedspecifications. ANSI/AGMA 9002-A86 was based upon the design criteria related to boresand keyways in coupling hubs that had evolved over many years of succ
22、essful industrypractice.ANSI/AGMA 9002-A86 presented pertinent data on dimensions, tolerances, and sizes forstraight bores, tapered bores, keys and keyways for unmounted industrial flexiblecouplings. Decimal equivalents of fractions were shown to a maximum of four decimalplaces and were not meant to
23、 imply tolerances. Inspection methods for tapered bores andkeyways were included in the appendices. The appendices also included therecommended design practice for tapered shafts for use with flexible couplings.ANSI/AGMA 9002-B04 supersedes the information from ANSI/AGMA 9002-A86, Boresand Keyways f
24、or Flexible Couplings (Inch Series).This revised version of the standard includes an extension of the bore sizes (through 18inches). It has also been rearranged and clarified to make it easier to use. One annex wasbroken into two annexes to clarify the information presented. Two new annexes wereadde
25、d: “Straight bore inspection methods” and “Coupling hub bores required to obtainANSI B4.1 “Preferred Limits and Fits for Cylindrical Parts” FN2 class interference fits withAGMA 9002-B04 recommended shaft tolerances”.The first draft of ANSI/AGMA 9002-B04 was made in May 2001. It was approved by theAG
26、MA membership in October 23, 2004. It was approved as an American NationalStandard on May 5, 2005.Suggestions for improvement of this standard will be welcome. They should be sent to theAmerican Gear Manufacturers Association, 500 Montgomery Street, Suite 350, Alexandria,Virginia 22314.Copyright Ame
27、rican Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04AMERICAN NATIONAL STANDARDv AGMA 2004 - All rights reservedPERSONNEL of the AGMA Flexible Couplings CommitteeChairman: Glen
28、n Pokrandt Falk Corporation.Vice Chairman: Jim Paluh Ameridrives CouplingACTIVE MEMBERST. Hewitt Lord Corporation.D. Hindman Falk Corporation.D. Lyle Ameridrives Coupling.H.A. Lynn, III Falk CorporationJ.W. Mahan Lovejoy, IncJ.R. Mancuso Kop-Flex/Emerson Power Transmission.T. Schatzka Rexnord Indust
29、ries, IncJ. Sherred Ameridrives CouplingR.G. Thompson System Components, IncR. Whitney Riverhawk Company.ASSOCIATE MEMBERSL.E. Baer TB Woods IncT. Cain Riverhawk Company.T.A. Geiger Falk Corporation.K.R. Gray Metal Improvement CompanyD. Lindsay EPT GearingJ. Mayhan Xtek, Inc.M.A. ONeil Riverhawk Com
30、pany.E.I. Rivin Wayne State University.Copyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04 AMERICAN NATIONAL STANDARDvi AGMA 2004 - All rights reserved(This page
31、 is intentionally blank)Copyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 AGMA 2004 - All rights reservedANSI/AGMA 9002-B04AMERICAN NATIONAL STANDARDAmerican National Standard
32、-Bores and Keyways forFlexible Couplings (InchSeries)1 ScopeThis standard presents inch dimensions, tolerances,and sizes for straight bores, tapered bores, singlekeys and keyways for unmounted industrial flexiblecouplings. The keys are square or rectangular. Thisspecification includes index toleranc
33、es for multiplekeyways.Inspection methods for straight and tapered boresand keyways are included in the annexes. Theannexes also include the recommended designpractice for tapered shafts for use with flexiblecouplings.1.1 Application areaThis standard is applicable to couplings as defined inANSI/AGM
34、A 9009-D02, Nomenclature for FlexibleCouplings, with inch bores and keyways.1.2 Excluded areasThis standard does not apply to couplings attachedto shafts without keys (see ANSI/AGMA 9003-A91),shafts and bores with tapered keys, inch bores withmetric keyways, metric bores with inch keyways,metric bor
35、es with metric keyways, or shaft keyseattolerances. See ANSI/AGMA 9112-A04 for metricbores with metric keyways.2 Normative referencesThe following standards contain provisions which,through reference in this text, constitute provisions ofthis American National Standard. At the time ofpublication, th
36、e editions indicated were valid. Allstandards are subject to revision, and parties toagreements based on this American National Stan-dard are encouraged to investigate the possibility ofapplying the most recent editions of the standardsindicated below.ANSI/AGMA 9009-D02, Flexible Couplings -Nomencla
37、ture for Flexible Couplings3 Symbols and definitions3.1 SymbolsThe symbols used in this standard are shown intable 1.NOTE: The symbols and terms contained in thisdocument may vary from those used in other AGMAstandards. Users of this standard should assure them-selves that they are using these symbo
38、ls and terms inthe manner indicated herein.Table 1 - SymbolsSymbol Description UnitsFirstusedChChord height at keyway inch Figure 3DbLarge end diameter of hub bore inch Figure 1DgGage line diameter for hub bore inch Figure 2DseSmall end diameter of hub bore inch 5.3HkNominal height of key inch Figur
39、e 3hkwKeyway depth inch Figure 3IkwMultiple keyway index tolerance inch 7.3.8(continued)Copyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04 AMERICAN NATIONAL STA
40、NDARD2 AGMA 2004 - All rights reservedTable 1 (concluded)Symbol Description UnitsFirstusedLkwMaximum keyway lead inch 7.3.6l Axial length of the tapered feature inch 5.3N Keyway offset tolerance inch 7.3.5r Keyway or keyseat fillet radius inch Table 8T Dimension from top of keyway to opposite side o
41、f bore inch Figure 3TPF Taper per foot of length on diameter in/ft 5.3tcTop clearance inch Figure 3wkKey width inch Figure 3wkwKeyway width inch Figure 3 Included angle degrees 5.34 Straight (finished) bored hubs4.1 Standard boresStandard finished bore sizes and tolerances areshown in table 2. Keywa
42、y tolerances are inaccordance with clause 7. For standard tolerancesof finished straight bores over eighteen inchdiameter, see table 3.NOTE: A bore size in table 2 may or may not be a stockbore size for each coupling manufacturer.4.1.1 Standard shaft-to-hub fitsThis standard covers Class 1 Clearance
43、 Fits, Class 2Clearance Fits, and Interference Fits as shown intable 2. The type of shaft-to-hub fit selected isdependent on the type of coupling and service inwhich the coupling will be used. If a particular type offit is desired, it shall be specified by the purchaser ofthe coupling.4.1.1.1 Cleara
44、nce fitsClearance fits are normally used to facilitate assem-bly and disassembly of coupling hub(s). Factors tobe considered when using clearance fits include:- axial positioning of coupling hub(s) during opera-tion;- when couplings are used for axial location of con-nected equipment (limited end fl
45、oat);- the effect of hub-to-shaft clearance on couplingbalance;- fretting of shaft and hub bore.NOTE: Some coupling manufacturers or users mayprefer the use of a positive clearance fit. The minimumclearance fit of this standard is line to line. Consult withthe coupling manufacturer to determine thei
46、r standardpractice.4.1.1.2 Interference fitsInterference fits are normally used to:- maintain positive axial location of the hub(s) onthe shaft(s) during operation;- maintain axial location of connected equipment;- preserve the inherent balance quality of the cou-pling;- minimize fretting of the sha
47、ft and bore.Nominal interference fit is 0.0005 inch/inch of shaftdiameter. Some applications may require greaterinterference fit. The coupling purchaser shall advisethe coupling manufacturer when a heavier interfer-ence fit is required. Heavier fits can influence thecoupling design and materials sel
48、ected.4.1.2 Unspecified hub-to-shaft fitsWhen the purchaser does not specify the hub-to-shaft fit required, the coupling manufacturer will borethe coupling to their standard tolerance in accor-dance with one of the fits given in table 2. Thepurchaser is responsible for the resulting fit.4.2 Non-stan
49、dard boresNon-standard bores are produced to dimensionsand tolerances which are outside this standard.Copyright American Gear Manufacturers Association Provided by IHS under license with AGMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 9002-B04AMERICAN NATIONAL STANDARD3 AGMA 2004
