1、A M E R I C A N N A T I O N A L S T A N D A R D HOBS ANSI B94.7-1980 REVISION OF ANSI B94.7-1966(R 197211.-.REAFFIRMED 1995 FOR CURRENT COMMITTEE PERSONNEL PLEASE SEE ASME MANUAL AS-1 1 SECRE TARlA T THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS PUBLISHED BY T H E A M E R I C A N S O C I E T Y O F M
2、E C H A N I C A L E N G I N E E R S United Engineering Center 345 East 47th Street New York,N.Y.1001 7 REAFFIRMED 2015FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgDate of Issuance:March 15,1981 No part of this document may be reproduced in any form,in an electronic retrieval system or othe
3、rwise,without the prior written permission of the publisher.Copyright 01981 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U S A.FOREWORD In response to requests from both users and producers a project was initiated in December of 1961 to establish standards for gear
4、cutting-tools.Sectional Committee B5 approved this project at their annual meeting in 1961 and created technical committee TC-14 to prepare such standards.In 1962 Sectional Committee B5 was divided and Technical Committees identified with the general area of“Metal Cutting”were transferred to a new S
5、ectional Committee B94.The first meeting of TC-14;reporting to Sectional Committee B94,was held in December 1962.It was at this time decided to divide the general subject into three areas,i.e.,Hobs,Gear Shaper Cutters and Shaving Cutters.The initial activity was to prepare a proposal for an American
6、 Standard on Hobs,using the industry standards(MCTI)as the basis for consideration.A proposal covering Hobs was submitted to industry in September 1964 for review and comment.A l l of the resulting responses were considered at a meeting of TC-14 in March 1965 and they then approved a final proposal.
7、The B94 TC-15 Editorial Committee reviewed the proposal and it was submitted on October 27,1965 to the B94 Sectional Committee for Letter Ballot.Following approval by B94 the proposal was approved by the Sponsor,ASME,and on June 22,1966 it was approved by the American Standards Association and desig
8、nated B94.7-1966.The committee was assigned the project of reviewing ASA B94.7-1966 for reaffirmation or revision.The consensus was to review the existing standard and add additional hob sizes to include the larger size nomi-nal diameter bores based on the requirements of the larger hobbing machines
9、 in use today.Multiple-thread involute spline hob sizes and tolerances have also been added.We have also made a number of editorial changes.The current revision,after approval of the B94 Standards Committee and the Secretariat,was approved by ANSI on October 27,1980 and designated B94.7-1980.iii AME
10、RICAN NATIONAL STANDARDS COMMITTEE B94 Cutting Tools,Holders,Drivers and Bushings(The following is the roster of the Committee at the time of approval of this Standard)OFFICERS A.R.Neinast,Chairman A.M.Mezey,Vice-chairman R.K.Buckley,Secretary AMERICAN GEAR MANUFACTURERS ASSOCIATION f.M.Dean,Jr.,Mec
11、hanical Technology,Inc.Latham,New York R.C.Brown,Alternate,Manager of Engineering Services,Arlington,Virginia AMERICAN SOCIETY OF MECHANICAL ENGINEERS M.E.Merchant,Jr.,Cincinnati Milacron,Inc.,Cincinnati,Ohio C.J.Oxford,Jr.,National Twist Drill&Tool Co.,Rochester,Michigan G.F.Wilson,Alternate,Genera
12、l Electric Co.,Worthington,Ohio CEMENTED CARBIDE PRODUCERS ASSOCIATION J.A.Woodward,Teledyne Firth Sterling,Pittsburgh,Pennsylvania A.P.Wherry,Alternate,Cemented Carbide Producers Association,Clevehnd,Ohio CUTTING TOOL MANUFACTURERS ASSOCIATION E.J.Czopor,Falcon Tool Company,Warren,Michigan C.W.Jath
13、o,Alternate,Cutting Tool Manufacturers Association,Birmingham,Michigan GENERAL SERVICES ADMINISTRATION W.R.Wacker,Federal Supply Service(FMET),Washington,D.C.HACK&BAND SAW MANUFACTURERS ASSOCIATION OF AMERICA W.B.Korb,The Henry G.Thompson Company,Branford,Connecticut C.M.Stockinger,Alternate,Hack&Ba
14、nd Saw Manufacturers Association of America,Cleveland,Ohio METAL CUTTING TOOL INSTITUTE W.A.Wagner,Cleveland Twist Drill Company,Cleveland,Ohio F.A.fetersen,Metal Cutting Tool Institute,Cleveland,Ohio MOTOR VEHICLE MANUFACTURERS ASSOCIATION A.R.Neinasr,Corporate Standards International Harvester,Hin
15、sdale,Illinois B.R.Ashby,Alternare,Motor Vehicle Manufacturers Association of the United States,Inc.,Detroit,Michigan NATIONAL ASSOCIATION OF PUNCH MANUFACTURERS R.Thomas,Dayton Progress Corp.,Dayton,Ohio NATIONAL MACHINE TOOL BUILDERS ASSOCIATION G.F.Wilson,General Electric Company,Worthington,Ohio
16、 J.8.Deam,Alternate,National Machine Tool Builders Association,McLean,Virginia SOCIETY OF CARBIDE ENGINEERS C.H.Lang,Society of Carbide Engineers,Bridgeville,Pennsylvania SOCIETY OF MANUFACTURING ENGINEERS K.A.Lundell,The Product0 Machine Company,Jamestown,New York H.McLinden,Caterpillar Tractor Company,Peoria,Illinois W.N.Moore,The Ford Motor Company,Dearborn,Michigan TELEPHONE GROUP R.A.Agnew,Western Electric Co.,Inc.Chicago,Illinois S.P.Rogacki,Alternate,Western Electric Company Inc.,Kearny,N