2001_2017.pdf

REAFFIRMED 2017AN AMERICAN NA TIONALST ANDARDMEASUREMENT OF THREAD MEASURING WIRESASME B89.1.17-2001Date of Issuance:March 15,2002This Standard will be revised when the Society approves the issuance of anew edition.There will be no addenda issued to this edition.ASME will issue written replies to inquiries concerning interpretations oftechnical aspects of this standard.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate.The proposed code or standard was made available for public reviewand comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted inconnection withany itemsmentioned inthis document,and doesnot undertaketo insureanyoneutilizing a standard against liability for infringement of any applicable letters patent,nor assumeany such liability.Users of a code or standard are expressly advised that determination of thevalidity of any such patent rights,and the risk of infringement of such rights,is entirely theirown responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued inaccordance with the established ASME procedures and policies,which precludes the issuanceof interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.ErratatoASME B89.1.17-2001Measurement of Thread Measuring WiresThe errata corrections listed below apply to ASME B89.1.17-2001.PageLocationChange67.3.2First equation revised to read as follows:C p w(1+cosec?)cot?(P/2)9A2Equation revised to read as follows:p 16?106?3?p2D12Table B1(1)In the second column,sixth entryrevised to read 2.9(2)In the third column,fifth and sixthentries revised to read 0.1 and 8,respectivelyB2.4The results for?w revised to read0.000 000 04 in.THE AMERICAN SOCIETY OF MECHANICAL ENGINEERSThree Park Avenue,New York,NY 10016-5990November 2006L7601ECONTENTSForeword.ivCommittee Roster.vCommittee Correspondence.vii1Scope.12Definitions.13References.14General.15Classification.25.12Master Wires.5.22Working Sets.6Inch Series Specifications.26.12Material.6.22Wire Design.6.32Wire Tolerances.6.43“Best-Size”Wires.6.54Wire Measurement Methods.7Metric Series Specifications.57.15Material.7.26Wire Design.7.36Wire Tolerances.7.46“Best-Size”Wires.7.56Wire Measurement Methods.Figures1Threading Measuring Wires.22Measuring Instrument.7Tables1“Best-Size”Wires for Inch Series 60 deg Threads.32”Best-Size”Wires for Inch Series 29 deg Acme Threads.43“Best-Size”Wires for Inch Series 7/45 deg Buttress Threads.44Thread Wire Measurement Specifications.55“Best-Size”Wires for Metric Series 60 deg Threads.76Thread Wire Measurement Specifications.7Nonmandatory AppendicesAMeasurement of Balls.9BExamples of Uncertainty Budgets for Thread Wire Measurements.11iiiFOREWORDThis Standard is the result of the combined work of members of the ASME B1 ScrewThread Committee and the ASME B89 Dimensional Metrology Committee.It is theresponsibility of the B1 Committee to determine how the pitch diameter of threads ismeasured.The B89 Dimensional Metrology Committee writes standards on specificationsand procedures for dimensional measuring equipment.Thread wires differ from most itemsmeasured in that they are measured in a deformed condition to approximate the elasticdeformation that occurs when they are used to measure pitch diameter.For this reason when using this Standard it is necessary to ensure that the B1 standardsreferenced in this document are the latest edition of the B1 standard which specifies theconditions to be used when measuring the pitch diameters of threads.The measurement of thread measuring balls is included as an appendix to the standard.This edition of B89.1.17 was approved by the American National Standards Institute onOctober 24,2001.ivASME B89 STANDARDS COMMITTEEDimensional Metrology(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERSR.B.Hook,ChairM.Lo,SecretaryCOMMITTEE PERSONNELD.Beutel,Caterpillar,Inc.K.L.Blaedel,University of CaliforniaJ.B.Bryan,Bryan Associates