B5-9_R2004_E1967.pdf

USA STANDARD SPINDLE NOSES USAS B5.9-1967 For Tool Room Lathes,Engine Lathes,Turret lathes,and Automatic lathes REAFFIRMED 1986.-._._ _ _ _ -_ REAFFIRMED 1998 FOR CURRENT COMMITTEE PERSONNEL PLEASE SEE ASME MANUAL AS-11 American Society of Tool and Manufacturing Engineers Society of Automotive Engineers National Machine Tool Builders Association The American Society of Mechanical Engineers T H E A M E R I C A N S O C t E T Y O F M 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.10017 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.REAFFIRMED 2004FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgUSAS 85.9-1967(R-1972)12 DECEMBER 1978 ACCEPTANCE NOTICE The above nonGovernment document was adopted on 12 December 1978 and is approved for use by the DoD.The indicated industry group has furnished the clearance required by existing regulation.Copies of the document are stocked by the DoD Single Stock Point,Naval Publications and Forms Center,Philadel-phia,PA 19120 for issue to DoD activities only.Contractors and industry groups must order directly from ASME,345 East 47th Street,New York,NY 10017.Title of Document:Spindle Noses for Tool Room Lathes,Engine Lathes,Turret Lathes,and Automatic Lathes Date of Specific Issue Adopted:1967;Reaffirmed 1972 Releasing Industry Group:American Society of Mechanical Engineers custodians:A r m Y-A L Navy-SH Air Force-99 Review activities:Navy-SH Air Force-99 Army-AR,ME User activities:Army-GL Air Force-99 Military Coordinating Activity:DLA-IP(Project 34GP-0005)No pan 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 ENGINEERS Copyright,0,1967 by Printed 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.Fore word T HE first edition of this standard,known as B5.9-1936,was developed by Technical Committee No.4 on Spindle Noses of Sectional Committee B5 on the Standardization o f Small Tools and Machine Tool Elements.The second edition,known as B5.9-1948,broadened the scope of the standard to include five sizes of Type L spindle noses,two smaller sizes of Types A,B and D spindle noses,namely,the 2 in.and 3 in.,and a new spindle nose larger than the 20 in.for Types A and B,now known a s the 28-in.nose.Similar changes were made in the American Standard for Chucks and Chuck Jaws(ASA B5.8).The third edition,known as B5.9-1954,incorporated Unified Screw Threads jointly agreed upon by the American Standards Association,the British Standards Institution,and the Canadian Standards Association.For thread designations and specifications see USA Standard for Unified and American Screw Threads(USAS Bl.1-1960).Other minor changes were also incorporated to clarify application of certain tolerances for plug gages,and a new paragraph was added to the text to provide balancing instructions.In the fourth edition,approved by ASA on February 5,1960 as B5.9-1960,tolerances for length of pilot and depth of pilot holes for the Type A-1 and B-1 spindles were de-creased slightly to reflect current actual practice in order to reduce the possibility of dis-torting the chuck or face plate when mounted on the spindle.For the same reason,.pilot bore diameters for some sizes of these chucks,and corresponding gage dimensions,were changed to reduce interference between chuck and spindle pilot diameters.In addition,the method of dimensioning radial hole locations was changed to follow the practice set forth in American Drafting Standards Manual on Dimensioning and Notes(ASA Y14.5-1957)to insure interchangeability.This Revision supersedes ASA B5.9-1960.Master ring gage inside diameters were slightly increased for some Types A,B and D spindle nose sizes,to coincide with the 1960 master plug gage change made to suit the increased chuck pilot diameters.Counter-bores for socket head screws were also changed to provide clearance for the“1960 Series”cap screws.Tables showing assembly of face plates to Type A and B spindles were eliminated,and tables and pages renumbered.Tables 35,36 and 37 in this edition,reflect the 1963 revision of Handbook H28-Screw-thread Standards for Federal Services,and the recent USA Standard Gages and Gaging for Unified Screw Threads,USAS B U-1966,in changing “NOT GO threaded plug gages”to“HI thread plug gages”and“NOT GO thread ring gages”to“LO thread ring gages.”Following approval by the USA Standards Committee B5 and the sponsors,the revision was approved by the USA Standards Institute on April 21,1967.USA STANDARD This USA Standard is one of nearly 3000 standards approved as American Stan