1、AMERICAN NATIONAL STANDARD ENGINEERING DRAWING AND RELATED DOCUMENTATION PRACTICES Gear and Spline Drawing Standards Part 2-Bevel and Hypoid Gears ANSI Y14.7.2 - 1978 , - SECRETARIAT THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS AMERICAN SOCIETY OF ENGINEERING EDUCATION SOCIETY OF AUTOMOTIVE ENGINEER
2、S PUBLISHED BY THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS United Engineering Center 345 East 47th Street New York, N. Y. 1 001 7 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI Y14.7.2-1978
3、2 February 1978 ACCEPTANCE NOTICE The above non-government Standardization Document was adopted on 2 February 1978 and is approved for use by the DoD. The indicated industry group has furnished the clearances required by existing regula- tions. Copies of the document are stocked by DoD Single Stock
4、Point, Naval Publications and Forms Cen- ter, Philadelphia, Pa., 19120 for issue to DoD activities only. Contractors and industry groups may obtain copies directly from: The American Society of Mechanical Engineers 345 E. 47th St., New York, N.Y., 10017 or The American Natipnal Standards Institute 1
5、430 Broadway, New York, N.Y. 10018 Title of Document: Gear and Spline Drawing Standards-Part 2, Bevel and Hypoid Gears Document No.: ANSI Y14.7.2-1978 Date of Specific Issue Adopted: 17 January 1978 Releasing Industry Group: The American Society of Mechanical Engineers Custodians;: Army - AR Air For
6、ce - 16 Navy - AS User Activities: Army - AR, AV, AT, EL, ME, MI Navy - MC, OS, SH, YD, AS Air Forc:e - 16, 1 1 Military Coordinating Activity: Army - AR Project Number: DRPR-019 1 No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the pri
7、or written permission of the publisher. THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Copyright 0 1978 by All Rights Reserved Printed in U.S.A. Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWO
8、RD For many years there was a growing desire for a national standard for engineering drawings, and as far back as December 1914 ASME approved and published the report of its Committee on Standards for Cross-Sections. The subject of standard practice was laid before the ASME Standardization Committee
9、 in April 1925 and in May the ASME Council voted to approve the recommendation.of the Committee that the American Standards Association be requested to authorize the organization of a nationally representative committee under its procedures to develop standards for drawings and drafting room practic
10、e. This recommendation was considered favorably and a preliminary conference was called by the ASA for October 14, 1925, and a general conference for December 4, 1925. At the meeting of the ASA Standards Council, December 1925, the project was finally approved, its scope was outlined, and the Societ
11、y for the Promotion of Engineering Education and the American Society of Mechanical Engineers were designated as joint sponsors. The organization meeting of the sectional com- mittee was held September 24, 1926, at which Dean Franklin deR. Furman was elected chairman. Subse- quently six subcommittee
12、s were appointed. These subcommittees undertook the formulation of tentative drafts of the several sections of the final report which were distributed for criticism and comment. In the spring of 1931 an Editing Committee, Dr. Thomas E. French, Chairman, combined and harmo- nized the final reports of
13、 the several subcommittees. The proposed standard was approved by the sectional committee and was subsequently approved by the sponsor societies and transmitted to the American Standards Association for approval and designation as an American Standard, a status which was granted in May, 1935. The se
14、ctional committee authorized the revision of the American Standard in December, 1940, and the Subcommittee on Revision was appointed in September, 1941. A draft dated August, 1944 received the approval of the sectional committee. The proposal was subsequently submitted to the sponsors and to the Ame
15、rican Standards Association for their approval. This approval with designation as an American Standard was received on April 12, 1946. In 1948, the scope of the project was enlarged, and a revision was begun in view of the increased drafting standardization work in Great Britain and Canada. An Execu
16、tive Committee was formed in 1949 to super- vise the work. It was decided to publish the eventual revision in separate sections. Upon completion and sectional committee approval of the last of the first six sections, they were sent to sponsors and to ASA for approval. Succeeding sections, as approve
17、d by the sectional committee were subsequently submitted to sponsors and ASA. A section, Gears, Splines and Serrations, Y14.7, was approved and published as an American Standard on April 8,1958. Recognizing the need for a universal gear drafting standard, a COR Committee was organized, in Decem- ber
18、 1961, for the purpose of coordinating the views of the SAE, Y14, the Military and the AGMA on a drafting standard for gears which could provide a fundamental document for wide national use of all inter- ested parties. It was recommended by the SAE Drawing Standards Committee and concurred in by the
19、 members of the COR committee that this section be divided into parts with Part 1 covering spur, helical, double-helical, and rack gears, Part 2 covering bevel and hypoid gears, Part 3 covering crossed helical gears, worm gears, Spiroid and Helicon gears, and Part 4 covering splines. After eight mee
20、tings, the COR Committee was incorporated into Subcommittee 7 of Standards Commit- tee Y14. Many drafts were circulated among the members of AGMA, AOA, SAE, Y14 and the Military for suggestions and criticisms. iii Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo r
21、eproduction or networking permitted without license from IHS-,-,-During this time the American Standards Association became the United States of America Standards Institute and,. as of October 6, 1969, the American National Standards Institute, Inc. In addition, the Society of Automotive Engineers b
22、ecame a cosponsor, along with the ASEE and the ASME of all Y14 Drafting Practices. Part 1 was designated an American National Standard on November 1, 1971. This section covering Part 2 received the approval of the Y14 Standards Committee and was subsequently approved by the spon- sor societies and s
23、ubmitted to the American National Standards Institute. It was designated an American National Standard on 17 January, 1978. iv Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STAN
24、DARDS COMMITTEE Y14 Engineering Drawing and Related Documentation Practices (The following is the Roster of the Committee at the time of approval of this Standard) OFFICERS R. F. Franciose, Chairman C. W. Stockwell, Vice Chairman E. L. Kardas, Vice Chairman C. J. Gomez, Secretary COMMITTEE PERSONNEL
25、 AMERICAN GEAR MANUFACTURERS ASSOCIATION G. L. Scon, American Gear Manufacturers Association, Washington, D.C. AEROSPACE 1NDUSTRIES.ASSOCIATION OF AMERICA, INC. R. E. Linse, North American Rockwell Corporation, El Segundo, California R. C. Robley, Westinghouse Electric Corporation, Electura Systems
26、Support Division, Hunt Valley, Maryland AMERICAN INSTITUTE FOR DESIGN AND DRAFTING f. A. Saint, Kansas Gas National Bureau of Standards, Washington, D.C. J. E. Kaufman, Alternate, Illuminating Engineering Society, New York, New York INSTITUTE OF ELECTRICAL / LEACH RADIAL ELEMENT .xxx +(.XXX) .xxx (X
27、.XXXX) -Mounting Distance- 1. When face angle distance and back angle distance (see FIG. 9) are used for dimensioning the gear blank, the face angle alnd the back angle should be given as reference dimensions on the drawing, without a tolerance. FIG. 1 STRAIGHT BEVEL GEAR/PINION 2 Copyright ASME Int
28、ernational Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDARD PART 2 FOR BEVEL AND HYPOID GEARS ANSI Y14.7.2-1978 NUMBER OF TEETH DIAMETRAL PITCH PRESSURE ANGLE PITCH DI
29、AMETER ADDENDUM WORKING DEPTH WHOLE DEPTH THEORETICAL OUTSIDE DIAMETER THEORETICAL CROWN TO BACK PITCH ANGLE ROOT ANGLE CIRCULAR THICKNESS MEAN MEASURING ADDENDUM MEAN MEASURING THICKNESS NORMAL BACKLASH WITH MATE BACKLASH VARIATION TOLERANCE3 SHAFT ANGLE FILLET RADIUS RUNOUT TOLERANCE3 PITCH TOLERA
30、NCE3 INDEX TOLERANCE3 TOOTH SUR FACE TEXTURE AGMA QUALITY CLASS TOOTH FORM DRIVING MEMBER DIRECTION OF ROTATION MFG SUMMARY NUMBER PART NUMBER OF MATE NUMBER OF TEETH IN MATE xx (XX.XXX) (XX.XX“) (X.XXXX) (.XXXI2 (.XXXI2 .xxx-.xxx2 (X.XXX)2 (X.XXXI2 (xx.xxo)2 (XX.XX0) (.xxxx)2 .xxx2 .xxx-.xxx2 .xxx-
31、.xxx2 .xxxx (XX.XX“) .xxx-.xxx2 .xxxx .xxxx .xxxx XX AA OR Ra xx CONIFLEX OR REVACYCLEa PINION OR GEAR CW AND/OR CCW xxxxxx xxxxxx xx 2. For metric drawings, the number of decimal places to the right of the decimal point should be reduced by one. 1. For metric drawings, specify module in place of di
32、ametral pitch. (See 5.9). 3. See 5.18.3. 5.23, 5.24, 5.25 and 5.26 concerning when to specify these values on the gear drawing. FIG. 2 DATA SPECIFICATIONS FOR STRAIGHT BEVEL GEARS 3 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permit
33、ted without license from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDARD PART 2 FOR BEVEL AND HYPOID GEARS x.xxx A x.xxx x.xxx f ANSI Y14.7.2-1978 Axis of Mating Mem,ber xx.xx0 I -xx.xxo -J (X.XXXX) - Mounting Distance 1. When face angle distance and back angle distance (see FIG.
34、 9) are used for dimensioning the gear blank, the face angle and the back angle should be given as reference dimensions on the drawing, without a tolerance. FIG. 3 SPIRAL BEVEL GEAR/PINION 4 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networki
35、ng permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDARD PART 2 FOR BEVEL AND HYPOID GEARS ANSI Y14.7.2-1978 NUMBER OF TEETH DIAMETRAL PITCH NORMAL PRESSURE ANGLE MEAN SPIRAL ANGLE HAND OF SPIRAL PITCH DIAMETER ADDENDUM WORKING DEPTH WHOLE DEPTH THEORETIC
36、AL OUTSIDE DIAMETER THEORETICAL CROWN TO BACK PITCH ANGLE ROOT ANGLE CIRCULAR THICKNESS MEAN MEASURING ADDENDUM MEAN MEASURING THICKNESS MEAN MEASURING DEPTH NORMAL BACKLASH WITH MATE BACKLASH VARIATION TOLERANCE3 SHAFT ANGLE FILLET RADIUS RUNOUT TOLERANCE3 PITCH TOLERANCE3 INDEX TOLERANCE3 TOOTH SU
37、RFACE TEXTURE AGMA QUALITY CLASS TOOTH FORM DRIVING MEMBER DIRECTION OF ROTATION MFG SUMMARY NUMBER PART NUMBER OF MATE NUMBER OF TEETH IN MATE xx (XX.XXX) (XX.XX“) (XX.XX“) LH OR RH (X.XXXX) (.xxx)2 (.XXXI2 (.xxx)2 (x.xxx)2 (x.xxx)2 (XX.XX“) (XX.XX“) (.xxxx)2 .xxx2 .xxx-.xxx2 .xxx-.xxxz .xxx-.xxx2
38、.xxxx2 (XX.XX“) .xxx-.xxx2 .xxxx .xxxx .xxxx XX AA OR Ra xx GENERATED OR FORMATE OR HELIXFORMC3 PINION OR GEAR CW AND/OR CCW xxxxxx xxxxxx xx V AND H CHECK IN THOUSANDTHS OF AN INCH (OR HUNDREDTHS OF A MILLIMETER) FOR FINISHED GEARS4 GEAR CONVEX TOTAL HEEL TOE GEAR CONCAVE TOTAL HEEL TOE V xx xx xx
39、H xx xx xx H xx xx xx V xx xx xx - 1. For metric drawings, specify module in place of diametral pitch. (See 5.9). 2. For metric drawings, the number of decimal places to the right of the decimal point should be reduced by one. 3. See 5.18.3, 5.23, 5.24, 5.25 and 5.26 concerning when to specify these
40、 values on the gear drawing. 4. May be optional for matched sets. Specify on matched set drawing. See FIG. 8. FIG. 4 DATA SPECIFICATIONS FOR SPIRAL BEVEL GEARS 5 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license
41、from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDARD PART 2 FOR BEVEL AND HYPOID GEARS ANSI Y14.7.2-1978 x.x:xxx Q x.x.xxx p- , 1 :qq .xxx (.XXX) 1 Axis of Mating Member ( x.xxx x ) Mounting Distance EACH RADIAL ELEMENT 1. When face angle distance and back angle distance (see FIG
42、. 9) are used for dimensioning the gear blank, the face angle and the back elngle should be given as reference dimensions on the drawing, without a tolerance. FIG. 5 HYPOID PINION 6 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permit
43、ted without license from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDARD PART 2 FOR BEVEL AND HYPOID GEARS ANSI Y14.7.2-1978 xx xx t 1. When face angle distance and back angle distance (see FIG. 9) are used for dimensioning the gear blank, the face angle and the back angle should
44、 be given as reference dimensions on the drawing, without a tolerance. FIG. 6 HYPOID GEAR 7 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD GEAR AND SPLINE DRAWING STANDA
45、RD PART 2 FOR BIEVEL AND HYPOID GEARS ANSI Y14.7.2-1978 NlJMBER OF TEETH DIAMETRAL PITCH - NORMAL PRESSURE ANGLE-GEAR CONVEX GEAR CONCAVE MEAN SPIRAL ANGLE HAND OF SPIRAL PINION OFFSET DIRECTION OF OFFSET PITCH DIAMETER (GEAR ONLY) ADDENDUM (GEAR ONLY) WORKING DEPTH WHOLE DEPTH THEORETICAL OUTSIDE D
46、IAMETER THEORETICAL CROWN TO BACK PITCH ANGLE (GEAR ONLY) ROOT ANGLE FACE APEX TO CROSSING POINT PITCH APEX TO CROSSING POINT (GEAR ONLY) ROOT APEX TO CROSSING POINT MEAN MEASURING ADDENDUM MEAN MEASURING THICKNESS MEAN MEASURING DEPTH NORMAL BACKLASH WITH MATE BACKLASH VARIATION TOLERANCE3 SHAFT AN
47、GLE FILLET RADIUS RlJNOUT TOLERANCE3 PITCH TOLERANCE3 INDEX TOLERANCE3 TOOTH SURFACE TEXTURE AGMA QUALITY CLASS TOOTH FORM DRIVING MEMBER DIRECTION OF ROTATION MFG SUMMARY NUMBER PART NUMBER OF MATE NUMBER OF TEETH IN MATE xx (XX.XXX) (XX.XX“) (XX.XX“) (XX.XX“) LH OR RH (X.XXX) AC OR BC (X.XXXX) (.x
48、xx)2 (.XXXI2 (.xxx)2 (x.xxx)2 (x.xxx)2 (XX.XX“) (XX.XX“) (.xxx)2 (.XXXI2 (.XXXI2 .xxx .xxx-.xxx .xxx-.xxx .xxx-.xxx .xxxx .xxx-.xxx (XX.XX“) .xxxx .xxxx .xxxx XX AA OR Ra xx GENERATED OR FORMATE OR HELIXFORMB PINION OR GEAR CW AND/OR CCW xxxxxx xxxxxx xx V AND ti CHECK IN THOUSANDTHS OF AN INCH (OR
49、HUNDREDTHS OF A MILLIMETER) FOR FINISHED GEARS4 GEAR CONVEX TOTAL HEEL TOE GEAR CONCAVE TOTAL HEEL TOE V xx xx xx V xx xx xx H xx xx xx H xx xx xx 1. For metric drawings, specify module in place of diametral pitch. (See 5.9). 2. For metric drawings, the number of decimal places to the right of the decimal pcint should be reduced by one. 3. See 5.18.3, 5.23, 5.
