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ASME_B5
2001
ASME B5.8-2001Revision of ASA B5.8-1972(R1994)CHUCKS ANDCHUCK JAWSA N A M E R I C A N N A T I O N A LS T A N D A R DASME B5.8-2001Revision of ASA B5.8-1972(R1994)CHUCKS ANDCHUCK JAWSA N A M E R I C A N N A T I O N A LS T A N D A R DCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.AN AMERICAN NA TIONALST ANDARDCHUCKS ANDCHUCK JAWSASME B5.8-2001Revision of ASA B5.8-1972(R1994)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.p.104-17-01 10:23:24Unit:UCPTextfile:B5P8$cpp.1Date of Issuance:May 25,2001The 2001 edition of this Standard is being revised with an automatic addendasubscriptionservice.Theuseofanaddendaallowsrevisionmadeinresponseto public review comments or committee actions to be published asnecessary.The next edition of this Standard is scheduled for publication in2006.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 2001 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.p.304-17-01 10:23:47Unit:UFWTextfile:B5P8$FWp.3FOREWORDThe original edition of this Standard,known as ASA B5.8-1936,was developed byTechnical Committee 11 on Chucks and Chuck Jaws of Sectional Committee B5 on thestandardization of small tools and machine tool elements.Sectional Committee B5 was organized in September of 1922 under the procedure ofthe American Standards Association and is sponsored by the National Machine Tool BuildersAssociation,the Society of Automotive Engineers,Metal Cutting Tool Institute,and TheAmerican Society of Mechanical Engineers.Technical Committee 11 was organized in New York on December 4,1928.TechnicalCommittee 4 on spindle noses was organized on December 5,1928.These two committeesworked in close cooperation with each other and with manufacturers and users of enginelathes,turret lathes,and automatic lathes in developing standards for spindle noses andchucks.A joint preliminary report was issued by these two committees in April,1930,knownas The April 1930 Report of Technical Committees 4 and 11 on Proposed StandardSpindle Noses and Chucks,and was distributed in industry for criticism and comment inMay,1930.As a result of suggestions and criticisms and the addition of considerable material offeredby industry,the two committees in May,1935,released designs for chucks which werelater incorporated in American Standard Chucks and Chuck Jaws,(ASA B5.8-1936).Thecompanion spindle noses were at that time incorporated in American Standard for LatheSpindle Noses(ASA B5.9-1936).In 1943,the Engineering Committee on Standardization of Engine and Tool Room Lathes,appointed by the National Machine Tool Builders Association,was formed for furtherstudy on the standardization of various elements including spindle noses.As a result of itsstudy,this committee recom