ANSI/AGMA ISO 1328- 2(ISO 1328--2:1997 IDT) ANSI/AGMA ISO 1328- 2 AMERICAN NATIONAL STANDARD Cylindrical Gears - ISO System of Accuracy - Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information in an electronic retrieval system or otherwise. or procedures not conforming to the standards. Alexandria. consensus. revision.] Approved November 17. Alexandria. the structure of the gear accuracy system and the allowable values of radial composite deviations. The use of American National Standards is completely voluntary. 1500 King Street.ISO System of Accuracy -. Credit lines should read: Extracted from ANSI/AGMA ISO 1328--2: Cylindrical Gears -. Consensus is established when. 1999 ABSTRACT This standard contains the ISO system of accuracy relevant to radial (double flank) composite deviations of individual cylindrical involute gears.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information. whether he has approved the standards or not. marketing. no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Any person who refers to any AGMA technical publication should be sure that the publication is the latest available from the Association on the subject matter. but not necessarily unanimity. with the permission of the publisher.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information ANSI/AGMA ISO 1328--2 Approval of an American National Standard requires verification by ANSI that the requirements for due process. from manufacturing. Printed in the United States of America ISBN: 1--55589--734--7 ii . Moreover. and other criteria for approval have been met by the standards developer. or using products. Consensus requires that all views and objections be considered. purchasing. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Suite 201. Published by American Gear Manufacturers Association 1500 King Street.American National Standard Cylindrical Gears . in the judgment of the ANSI Board of Standards Review. [Tables or other self--supporting sections may be quoted or extracted. processes. No part of this publication may be reproduced in any form. Substantial agreement means much more than a simple majority. It provides definitions for gear tooth accuracy terms. without prior written permission of the publisher. and that a concerted effort be made toward their resolution. substantial agreement has been reached by directly and materially affected interests. their existence does not in any respect preclude anyone. Virginia 22314 Copyright ã 1999 by American Gear Manufacturers Association All rights reserved. Virginia 22314. Suite 201.ISO System of Accuracy . the American Gear Manufacturers Association. Requests for interpretation of this standard should be addressed to the American Gear Manufacturers Association. CAUTION NOTICE: AGMA technical publications are subject to constant improvement. or withdrawal as dictated by experience. An informative annex is included that provides equations for determining allowable values of runout. . . . 5 Gear tooth accuracy terms relevant to radial composite deviations . . . . . . . iv 1 1 1 1 2 3 3 Tables 1 Symbols used within ISO 1328--2 . . . 4 Symbols. . . . . terms and units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Structure of the gear accuracy system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Annexes A B Tables of allowable values of radial composite deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Formulas for tolerances of accuracy grade 5 for radial composite deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Figures 1 Radial composite deviation diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Definitions . . . . . . . . . . . . . . . . . . . . . . 1 Scope . . . . . . . . . . . 2 Normative references . . . . 11 iii . . . . . . . . . . . . . . . 5 Allowable values of runout with tolerance tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 Contents Page Foreword . . . . -. such that the smallest number represents the smallest tolerance.Runout is not included as one of the elements with a tolerance. Annexes A (tolerance tables) and B (runout) are for information only. Virginia 22314.Recommendations for Master gear engagement with the product gear are different. if any. the user of ANSI/AGMA ISO 1328--2 must be very careful when comparing composite tolerance values formerly specified using ANSI/AGMA 2000--A88. Gear Classification and Inspection Handbook -. This version was approved by the AGMA membership in June 1999. They should be sent to the American Gear Manufacturers Association. In general.Accuracy grade numbering system is reversed. ANSI/AGMA ISO 1328--2 is an identical adoption of ISO 1328--2:1997. It was approved as an American National Standard on November 17.Tolerances and Measuring Methods for Unassembled Spur Helical Gears.ISO System of Accuracy -. Alexandria. Differences include.Relative magnitudes of the Total and the Tooth--to--tooth tolerances for a single grade are in a different proportion. in this document are provided for informational purposes only and are not to be construed as a part of ANSI/AGMA ISO 1328--1.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information. -. but are not limited to: -. Suite 201. It was first published on 1997--08--01. -. 1500 King Street. Suggestions for improvement of this standard will be welcome. the information in this standard covers similar subjects as are covered in ANSI/AGMA 2000--A88. Therefore. that currently exists. The user of this American National Standard standard is alerted that differences exist between it and ANSI/AGMA 2000--A88.ANSI/AGMA ISO 1328--2 AMERICAN NATIONAL STANDARD Foreword [The foreword. 1999. iv .] This standard was developed by ISO Technical Committee 60 as an International Standard with ANSI/AGMA participation. Cylindrical Gears -. footnotes and annexes. . Gudates . . . . Luetkemeier J. .H. .E. M. .C. Fassler AG Lockheed Martin Energy Sys. . Consultant Profile Engineering. Penn state University v . . McVittie . . . . . Inc. . Xtek. . Incorporated The Gleason Works Xtek. .R. . D. . . ASSOCIATE MEMBERS M. . . Ltd. T. W. Arrow Gear Company Consultant The Falk Corporation ZF Industries Gear Engineers. . B. . . M. .A. Cowan . R. B. D. Focus Tech. . National Broach & Machine Co. . . Rockwell Automation/Dodge Caterpillar. . . . . Considine . . . . J. The Gear Works -. . J. . . Sundstrand Corporation Amarillo Gear Company The Cincinnati Gear Co. . . Glasener . Zwart . . . Waldie . Cowan . Hofrichter . Univ. . Storm . .E. Marfice . E. . . . . Shariff . . . . . Barron . . . Clatworthy . . Inc. . . T. . . . . . Inc.E. . Lindley . . Koshiol . . . E. Senkfor . Mahr Corporation The Horsburgh & Scott Co. . . Klemm . Ramberg . Inc. . . . . . . Fairfield Manufacturing Co.E. Pennell . Inc. . . Grana . R. Miller . Okamoto . . . P. . . . . . . Corp. Henriot . R. -. . . . . . . . Choiniere . . . . . . . . . D. .J.L. Considine .R. . . Brad Foote Gear Works. P. .AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 PERSONNEL of the AGMA Inspection and Handbook Committee Chairman Classification Section: E. . . . . . Inc. K. H. Brown . . Incorporated B. Caterpillar. The Gleason Works Caterpillar. . . J. . . . S. F. . D. . M. Precision Gear Company PMI Food Equipment Group Consultant Philadelphia Gear Corporation Arrow Gear Company Frorest City Gear Company Caterpillar. . Johnson . .Gear Mfg & Met. I.A. . L. . M. . Laskin . Wasilewski . . . . . . . . The Falk Corporation Oliver Gear. Invincible Gear Company G.Z. S. . R. . . . . . . . . J. Harary . . C. J. .S.D.S. . Northwest Gears. . . Mahr Corporation Chairman Measuring Methods Section: R. . IIT Research Institute CETIM Nippon Gear Company. . Michaels . . . . . . . . Regal--Beloit Corporation NIST Consultant Brown & Sharpe Mfg. . D. . Inc. . . . . . Columbia Gear Corp. . . .G. . . Smith . J. S.S.Seattle. B. Kosal . . . . . . Smith . Horwell . .J. Young .A. . Green . . . . . Inc. . . . .Seattle. . . . Milam . . Inc. . . . . . . Octrue . . M. Lemanski . . . Antosiewicz . D. . . Dick . . . . . . . . . . Matzo .M. . . Liebherr Gear Technology Co. . Inc.A. . Price . . A. Rychlinski . H. Gregory .K. Eaton Corporation Gear Products.E. . . . . D. May . McCarroll . . . McNamara . Inc. . .L. T. . Lake . . . . M. . . .F. . . V. Inc. .A. Inc. . G. . . Smith Company ACTIVE MEMBERS W. M.J. D. Caterpillar. Cox . R. Nanlawala . W. . . . . R.J.. . . . T. . Considine Associates Considine Associates Eaton Corporation M&M Precision Systems Corp. .R. Lawson . . Dodds . Cowley . Heinrich . . G. . Bradley . of Newcastle--Upon--Tyne Eastman Kodak Company The Gear Works -. . Inc. . Hamilton . . . . T. . ANSI/AGMA ISO 1328--2 AMERICAN NATIONAL STANDARD (This page is intentionally left blank.) vi . Part 1: Geometrical definitions. It specifies the appropriate definitions of gear tooth accuracy terms. through reference in this text. of this International Standard. Annex B provides information on runout ISO 1328--1:1995.AMERICAN NATIONAL STANDARD American National Standard -- Cylindrical Gears -. 4 Symbols. Cylindrical gears -. constitute provisions.ISO System of Accuracy -Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information ANSI/AGMA ISO 1328--2 for use if agreed upon between purchaser and manufacturer. the structure of the gear accuracy system and the allowable values of the above mentioned deviations.0 to 1000 mm. b) Runout is defined in annex B and values are not given in the standard for determining accuracy grade 5. ISO 1122--1:1983. and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Cylindrical gears -. Members of IEC and ISO maintain registers of currently valid International Standards. Only symbols for quantities used in this part of ISO 1328 are given in table 1.Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth.Code of inspection practice -. 2 Normative references The following standards contain provisions which. All standards are subject to revision. 1 Scope This part of ISO 1328 establishes a system of accuracy relevant to radial (double flank) composite deviations of individual cylindrical involute gears. ISO/TR 10064--1:1992. The diameter and module ranges for radial composite deviations and runout are also different. 3 Definitions For the purposes of this part of ISO 1328.Part 2: Inspection related to radial composite deviations.2 to 10 mm and the diameter range from 5. tooth thickness and backlash. see clauses 6 and 7. ISO/TR 10064--2:1996. International gear notation -Symbols for geometrical data. the editions indicated were valid.ISO System of accuracy -. Cylindrical gears -. At the time of publication. Glossary of gear terms -. The radial measurement accuracy system has different grade ranges than elemental ranges in ISO 1328--1. runout. Annex A gives tables based on the formulae in clause 7. a) The radial composite accuracy system comprises 9 accuracy grades for FiI or fiI of which grade 4 is the highest and grade 12 is the lowest. ISO 701:1976. terms and units Symbols are based on those given in ISO 701. 1 . The module range extends from 0. the definitions given in ISO 1122--1 apply.Code of inspection practice -.Part 1: Inspection of corresponding flanks of gear teeth. 3 Total radial composite deviation.Radial composite deviation diagram 2 . fiI Measured values of radial composite deviations are affected by the accuracy of the master gear and the total contact ratio of the product gear with the master gear (refer to ISO/TR 10064--2). when the product gear with its right and left flank simultaneously in contact with those of the master gear.Symbols used within ISO 1328--2 Symbol d mn εβ fiI F iI LAE Q z Term reference diameter normal module overlap ratio tooth--to--tooth radial composite deviation total radial composite deviation active length accuracy grade number number of teeth 5 Gear tooth accuracy terms relevant to radial composite deviations 5. FiI Total radial composite deviation is the difference between the maximum and minimum values of Tooth--to--tooth radial composite deviation is the value of the radial composite deviation corresponding to one pitch.tooth radial composite deviation. The maximum value fiI of all the product gear teeth should not exceed the specified allowable value (see figure 1).4 Tooth-. is turned through one complete revolution. during the complete cycle of engagement of all the product gear teeth.1 Product gear The “product gear” is the gear which is being measured or evaluated. 5. 5. 5. 360_/z.ANSI/AGMA ISO 1328--2 AMERICAN NATIONAL STANDARD Table 1 -.2 Radial composite deviations Units mm mm -mm mm mm --- centre distance which occur during a radial (double-flank) composite test.to-. Figure 1 shows an example of a relevant diagram. Maximum Value of fiI Fi I 360_ z 360_ 0_ Figure 1 -. a) Total radial composite deviation. particularly when less than 5 mm. in which Q is the accuracy grade number of the required value. 6 Structure of the gear accuracy system Determination of the accuracy grade by measurement of radial composite deviations according to this part of ISO 1328 does not imply that the elemental deviations. the use of master gears shall be subject to agreement between purchaser and manufacturer.5 (Q -. profile. The step factor between two consecutive grades is equal to 2.01 d + 0. The values calculated using the formulas apply to accuracy grade 5.e. 6. f i′′ = 2.8 values of each next higher (lower) grade are determined by multiplying (dividing) by 2. The tolerances have been established for spur gears and can be used to determine an accuracy grade. the measuring apparatus including the master gear shall be of sufficiently high precision as to ensure that values can be measured and repeated with the requisite accuracy. subject to agreement between purchaser and manufacturer.4 . may influence the results of radial composite measurements of helical gears. When used for helical gears.g. as defined in ISO 1328--1. FiI: F i′′ = 3. 3 . ISO 1328--1 or ISO 1328--2. Since the overlap ratio.5. as appropriate.(1) 6. See also 5.5 Master gear The master gear for a radial composite test should engage the product gear over the “active length”. The tolerances have been established for spur gears and can be used to determine an accuracy grade. When gear geometry is not within the specified ranges of clause 1.AMERICAN NATIONAL STANDARD 5. e. the master gear facewidth should be such that εβ is less than or equal to 0.2m n + 1...96m n + 0.5)]. will conform to the same grade. Statements in documents concerning required accuracy shall include reference to the relevant standard.(2) The formulae with the system of accuracy presented in clause 6 are used if no other agreement is specified.. they can similarly be used for helical gears.. The tolerances for radial composite deviation apply only to the inspection of a gear running with a master gear.. use of the formulae shall be agreed upon between purchaser and manufacturer. etc. i.5 with the product gear. lead. The tables of tolerances should only be used with agreement between purchaser and manufacturer.01 d + 6. The values for the tables in annex A were determined using the relevant mean values as stated in A. from ISO 1328--1. ANSI/AGMA ISO 1328--2 determined by multiplying the un--rounded calculated value for accuracy grade 5 by 2 to exponent [0. fiI: Gear accuracy is evaluated by comparing measured deviations against the numerical values determined by clause 7. However.2 Validity of radial composite deviation When tolerance values are small. LAE. pitch. They do not apply to the measurement of two product gears running together.2. 7 Formulas for tolerances of accuracy grade 5 for radial composite deviations Use the actual values of module and diameter in the following formulas...1 Gear accuracy b) Tooth--to--tooth radial composite deviation. εβ. The required value for any accuracy grade can be . ) 4 .ANSI/AGMA ISO 1328--2 AMERICAN NATIONAL STANDARD (This page is intentionally left blank. 8/1. the parameters mn and d can be introduced as the geometrical mean values of the relevant range limits. they are rounded to the nearest integer.746 .4 Validity When procurement documents state the required gear accuracy grade with reference to ISO 1328--2. A.(A. by agreement.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information.5 Tables of radial deviation tolerances The tabulated values in this annex are based on values calculated using the formulas in clause 7 with the criteria of A. Total radial composite tolerance values are shown in table A.4 2 0. different tolerance limits may be specified using tables.2 Ranges of parameters The recommended lower and upper range limits for applying the formulas to tables are: a) For the reference diameter. However. 5 . if any.5 Q−5 A.2. If values are greater than 10 mm.01 d + 6.2m n + 1.1 Purpose This annex gives a method for applying the formulas of clause 7 and 6.1 to develop tables of tolerances: F i′′ = F r + f i′′ 2 0. footnotes and annexes.5 mm value or integer.0/1. d: --composite: 5/20/50/125/280/560/1000 mm b) For the normal module. Cylindrical Gears -. for example. they are rounded to the nearest 0.ISO System of Accuracy -. mn: --composite: 0.AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 Annex A (informative) Tables of allowable values of radial composite deviations [The foreword.. are provided for informational purposes only and should not be construed as a part of ANSI/AGMA ISO 1328--2.5/4/6/10 mm When applying the formulas of clause 7 for tables of tolerances.2/0.2 and A. that accuracy grade applies only to deviations of all elements according to clauses 6 and 7 of this standard.] A. If the actual module is 7. If less than 10 mm..5 Q−5 . the range limits are normally mn = 6 and mn = 10 and the table value calculated with m = 6 × 10 = 7.5/2.1. n The tolerance values are rounded versions of values calculated using the formulas in clause 7 and 6. A.5/0. but without other indication.3 Rounding rules A.1 and tooth--to--tooth radial composite tolerance values in table A.1) = 3.3. 0 7.0 0.5 4.8 1.0 1.0 10 11 11 13 16 20 26 13 14 15 16 18 22 28 37 19 20 21 23 26 31 39 52 26 28 30 32 37 44 56 74 37 40 42 45 52 63 79 104 52 56 60 64 73 89 111 147 74 80 85 91 103 126 157 209 105 113 120 128 146 178 222 295 148 160 169 181 207 251 314 417 125 0.0 1.8 1.0 6.2 0.5 0.2 0.8 1.5 0.0 10 15 16 16 17 19 21 25 32 21 22 23 24 26 30 36 45 30 31 33 34 37 43 51 64 42 44 46 48 53 61 72 90 60 63 65 68 75 86 102 127 85 89 92 97 106 121 144 180 120 126 131 137 149 172 203 255 170 178 185 193 211 243 287 360 240 252 261 273 299 343 406 509 560 0.0 6.0 1.0 10 12 12 13 14 15 18 22 28 16 17 18 19 22 25 31 40 23 25 26 27 31 36 44 57 33 35 36 39 43 51 62 80 46 49 52 55 61 72 88 114 66 70 73 77 86 102 124 161 93 98 103 109 122 144 176 227 131 139 146 154 173 204 248 321 185 197 206 218 244 288 351 454 280 0.5 4.0 10 11 14 11 12 12 14 16 20 15 16 18 19 22 28 21 23 25 27 32 39 30 33 35 38 45 56 42 46 50 54 63 79 60 66 70 76 89 112 85 93 100 108 126 158 120 131 141 153 179 223 50 0.5 0.ANSI/AGMA ISO 1328--2 AMERICAN NATIONAL STANDARD Table A.Total radial composite tolerance.5 2.0 6.0 1.8 1.5 0.5 2.5 4. FiI Dimensions in micrometres Reference diameter d (mm) > 5 20 50 125 280 560 6 Normal module mn Accuracy grade = to > = to 4 5 6 7 8 9 10 11 12 20 0.0 1.8 1.5 4.5 2.0 6.8 1.5 4.0 1.5 2.5 0.0 1.5 0.0 0.5 0.5 4.5 2.0 1.0 6.0 0.0 6.0 9.2 0.0 10 25 25 26 27 28 31 35 42 35 36 37 38 40 44 50 59 50 51 52 54 57 62 70 83 70 72 74 76 80 88 99 118 99 102 104 107 114 125 141 166 140 144 148 152 161 177 199 235 198 204 209 215 228 250 281 333 280 288 295 304 322 353 398 471 396 408 417 429 455 499 562 665 .0 1.5 0.2 0.0 1.0 6.5 0.8 1.5 4.5 0.5 4.8 1.0 1.0 10 19 20 21 22 23 26 30 36 28 29 29 30 33 37 42 51 39 40 42 43 46 52 60 73 55 57 59 61 65 73 84 103 78 81 83 86 92 104 119 145 110 114 117 122 131 146 169 205 156 161 166 172 185 207 239 290 220 228 235 243 262 293 337 410 311 323 332 344 370 414 477 580 1000 0.1 -.5 4.5 2.0 0.8 1.5 0.5 8.5 4.5 2.0 6.0 0.5 0.8 1.8 1.0 1.5 2.5 2.5 2.8 1.5 2.5 4.2 0.2 0.0 10 9.0 6.0 6.5 0.5 2. 5 9.5 7.0 5.5 6.8 1.0 2.0 5.5 11 14 18 26 41 62 95 10 16 20 26 37 58 87 135 15 22 28 36 53 82 123 191 21 31 40 51 75 116 174 269 280 0.0 4.0 4.5 0.0 1.2 0.5 3.2 0.5 10 13 19 29 43 67 7.0 4.0 6.5 8.0 13 21 31 48 5.5 0.0 13 21 31 48 5.5 6.5 2.5 7.0 5.0 1.5 4.0 10 1.0 2.5 9.8 1.Tooth--to--tooth radial composite tolerance.5 4.5 6.5 5.0 11 14 18 26 41 10 15 20 25 37 58 14 22 28 36 53 82 20 31 39 50 74 115 50 0.5 3.5 0.0 1.0 7.5 4.5 4.5 0.0 6.5 2.0 3.0 9.8 1.5 2.5 0.0 2.5 10 15 24 2.0 6.8 1. fi² Dimensions in micrometres Reference diameter d (mm) > 5 20 50 125 280 560 Normal module mn Accuracy grade = to > = to 4 5 6 7 8 9 10 11 12 20 0.5 2.0 10 1.8 1.8 1.5 7.5 9.0 4.5 0.0 6.0 5.5 9.5 0.5 8.0 1.8 1.5 2.5 5.0 6.0 0.0 0.5 11 17 2.0 3.2 -.0 6.5 4.0 12 15 19 27 42 62 96 11 17 21 27 38 59 88 136 16 24 30 38 54 83 125 192 23 33 42 53 77 118 176 272 7 .5 5.5 10 2.5 14 22 34 3.5 5.5 3.0 13 20 31 48 5.5 0.5 0.5 4.0 11 14 18 26 41 61 95 10 15 20 25 37 58 87 135 14 22 28 36 53 82 123 190 20 31 40 51 75 116 174 269 125 0.0 10 1.5 6.2 0.0 3.0 3.0 1.0 1.5 3.0 1.5 4.5 10 15 24 2.0 3.5 9.0 9.5 11 13 19 30 44 68 8.2 0.8 1.0 13 20 5.0 1.5 10 15 24 2.0 1.0 10 13 19 29 44 67 7.8 1.5 4.5 11 17 2.5 2.8 1.0 2.0 1.5 4.0 6.5 0.AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 Table A.5 11 14 18 27 41 62 95 11 16 20 26 38 58 87 135 15 22 29 36 53 82 124 191 21 32 41 52 75 116 175 270 560 0.0 2.0 5.0 5.5 2.0 9.5 2.5 3.0 1.5 9.5 9.5 3.5 4.5 2.5 4.0 11 17 2.0 7.5 4.5 5.0 6.5 10 13 19 29 7.5 9.5 4.0 4.0 6.0 10 1.0 0.5 4.5 0.0 5.5 8.0 1.5 0.8 1.5 3.5 7.5 4.5 5.8 1.0 3.0 11 17 2.5 6.5 14 21 31 48 5.5 4.5 4.5 15 22 34 3.5 15 22 34 4.0 13 20 31 48 5.5 11 15 18 27 41 62 96 11 16 21 26 38 59 88 135 15 23 29 37 54 83 124 191 22 32 41 52 76 117 175 271 1000 0.5 2.0 0.0 2.0 10 1.0 7.5 15 22 34 4.5 4.5 4.0 8.5 0.0 10 16 24 3.0 0.5 2.0 3.0 7.0 3.5 4.5 4.5 7.0 6.0 2.5 2.5 7.5 2.0 6.0 2.5 14 22 34 3.0 6.0 6.0 2.5 6.0 9.5 7.5 2.0 7.5 7.2 0.0 6.5 7.0 6.5 4.5 7.0 10 13 19 29 44 68 7.0 6.5 2.5 14 3.0 10 13 19 29 44 67 7.5 2.5 10 15 24 2.5 3.5 2.0 1.2 0.5 11 17 2.0 2. Fr.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information. mn: -- 0. B. d: -. Fr eccentricity 1 2 4 6 8 10 12 Tooth space number 14 Figure B. of the gear is the difference between the maximum and the minimum radial distance from the gear axis.Runout diagram of a gear with 16 teeth 8 16 1 .24 m n + 1. Figure B.] B. there must be an agreement between the purchaser and the supplier.1 Purpose This annex gives informative values and a method for applying the runout formula to develop tables of recommended limits.0 / 3. the range limits are normally mn = 6 and mn = 10 and the table value calculated with m = 6 × 10 = 7.1 -. If the actual module is 7. anvil) which is placed successively in each tooth space. Fr The value of the runout.4 Ranges of parameters The recommended lower and upper range limits for applying the formula are: a) For the reference diameter. Cylindrical Gears -. see ANSI/AGMA ISO 1328--1. Fr. in which the eccentricity is a portion of the runout (see ISO/TR 10064--2). the probe contacts both the right and left flanks at approximately mid tooth--depth.746.3 for a table of tolerances. B. The system of accuracy is the same as that for radial composite deviations. are provided for informational purposes only and should not be construed as a part of ANSI/AGMA ISO 1328--2. footnotes and annexes.8 F p = 0. if any.0 d + 5. for accuracy grade 5 runout Use the actual values of module and diameter in the following formula. During each check.(B.5 / 20 / 50 / 125 / 280 / 560 / 1000 / 1600 / 2500 / 4000 / 6000 / 8000 / 10000 mm b) For the normal module. B.2 Runout. n If gear accuracy is to be evaluated using tables of tolerances.ANSI/AGMA ISO 1382--2 AMERICAN NATIONAL STANDARD Annex B (informative) Allowable values of runout with tolerance tables [The foreword.6 .1 shows an example of a runout diagram.5 / 6 / 10 / 16 / 25 / 40 / 70 mm When applying the formula of B.1) For the definition of Fp.ISO System of Accuracy -. for example.5 / 2. of a probe (ball. cylinder.3 Recommended formula for tolerances.. See 6. the parameters mn and d can be introduced as the geometrical mean values of the relevant range limits. F r = 0..1. 5 mm value or integer.5 1 2.5 8.0 3.5 Rounding rules The tolerance values are rounded versions of values calculated using the formula.5 3.5 2. If less than 10mm.0 4.5 3 4.0 2.1.0 7.5 6.0 7.0 6.5 3.5 3.5 4.0 7.5 9.5 6.0 5. they are rounded to the nearest integer.5 3.5 8. particularly when less than 5 mm.0 2.5 2.0 7.5 5. that accuracy grade applies only to deviations of all elements according to clause 6 of this part of ISO 1328.0 4.5 3.0 10 16 25 40 70 Accuracy grade 0 1.5 9.0 4.AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 agreement.0 3.5 5.5 9.0 10 10 16 16 25 25 40 0.5 8.0 5.0 6.5 2. with the criteria of B.0 10 16 25 40 2.0 3.0 2.5 9. but without other indication.3.0 7.4 and B.0 5.0 3.1 -.5 6.5 6.Runout tolerance.0 3.5 7.0 5.5 4.5 5.5 10 10 10 11 11 12 13 4 6.0 2. by The tabulated values in this annex are based on values calculated using the formula.0 3.0 8.5 2.5 5.5 8.5 6.0 9.5 1.0 8.0 7.0 3.5 6.5 7. B.5 10 11 11 12 12 14 14 14 14 15 16 17 19 5 9.5 3.7 Table of runout tolerances When procurement documents state the required gear accuracy grade with reference to ISO 1328--2.5 9. the measuring apparatus must be of sufficiently high precision to ensure that values can be measured and repeated with the requisite accuracy. Table B.0 6.5 6.5 4.5 7.5 4. B.5 8.0 5.5 5.0 7.0 9. runout tolerance limits may be specified between purchaser and manufacturer.0 5.5 4.0 6.5 2.5 6.5 2.5 11 12 12 13 15 15 16 16 18 19 20 20 20 21 22 24 27 6 13 13 16 17 17 19 21 21 22 23 25 27 28 28 29 30 32 34 38 7 18 19 23 24 25 26 29 30 31 33 35 39 39 40 41 42 45 48 54 8 9 25 36 27 38 32 46 34 47 35 49 37 52 42 59 43 61 44 62 46 65 50 70 55 77 55 78 56 80 58 82 60 85 63 89 68 96 76 107 4. However.0 8.0 9.5 2.5 3. mm > = to 5 20 20 50 50 125 125 280 280 560 Normal module. Runout tolerance values are shown in table B.0 5.5 3.0 6.0 9. B.5 4.5 5.0 6. When tolerance values are small.0 6. Fr Dimensions in micrometres Reference diameter.0 2.0 2.0 6.0 3.0 3.5 3. mn (mm) > = to 0.5 6. If values are greater than 10 mm.0 4.0 10 10 16 16 25 0.5 0.5 2.0 4.0 10 0.5 10 11 12 14 13 13 13 14 14 15 17 19 18 18 19 19 20 21 23 27 26 26 27 27 29 30 33 38 36 37 38 39 40 43 47 54 51 73 52 74 53 75 55 77 57 81 61 86 66 94 76 108 103 105 106 109 114 121 132 153 10 51 53 65 67 70 74 83 86 88 92 99 109 110 113 115 120 126 136 152 11 72 75 92 95 99 105 118 121 125 131 140 154 156 159 163 169 179 193 215 12 102 106 130 134 139 148 167 171 176 185 198 218 221 225 231 239 252 272 304 146 148 150 155 161 171 187 216 206 209 213 219 228 242 265 306 291 296 301 310 323 343 374 432 (continued) 9 .5 2 3.6 Validity B.0 3.5 4.0 3.0 3.5 2.5 6.0 9.0 7.5 6.5 4.0 3.0 2.5 3.5 6. d. they are rounded to the nearest 0.5.0 4. 0 10 10 16 16 25 25 40 40 70 6.0 9.5 8.0 6. mn (mm) > = to 0.0 6.5 6.0 8.0 10 10 16 16 25 25 40 40 70 6.0 6.5 3.5 10 11 10 11 11 11 11 12 13 13 13 13 14 14 16 16 16 17 17 19 19 20 20 21 22 23 23 23 24 25 26 26 26 27 28 2 12 12 12 12 13 13 14 16 15 15 15 16 16 17 19 18 18 19 19 20 22 23 23 24 25 26 27 28 28 29 31 32 32 33 34 36 36 36 37 38 40 3 17 17 17 17 18 19 20 23 21 21 22 22 23 24 27 26 26 27 28 29 32 32 32 33 35 37 39 39 40 42 44 45 46 47 48 51 51 52 52 54 56 4 23 24 24 25 25 27 29 32 30 30 30 31 33 34 38 36 37 38 39 41 45 45 46 47 49 53 55 56 57 59 62 64 65 66 68 72 72 73 74 76 80 5 33 34 34 35 36 38 41 46 42 42 43 44 46 49 54 51 52 53 55 58 63 64 65 67 69 75 77 79 80 83 88 91 92 94 96 102 102 103 105 108 113 6 47 48 48 49 51 53 57 65 59 60 61 63 65 69 76 73 74 75 78 82 89 90 92 94 98 105 110 111 114 118 125 128 130 132 136 144 144 146 148 152 160 7 66 67 68 70 72 76 81 91 84 85 86 88 92 98 108 103 104 107 110 116 126 127 130 133 139 149 155 157 161 166 177 181 184 187 193 203 204 206 210 216 226 8 94 95 96 98 102 107 115 129 118 120 122 125 130 138 152 145 148 151 156 164 178 180 183 188 196 211 219 222 227 235 250 257 260 265 273 287 289 292 297 305 319 9 133 134 136 139 144 151 162 183 167 169 172 177 184 195 215 206 209 213 220 232 252 255 259 267 278 298 310 315 322 333 353 363 367 375 386 406 408 413 420 431 451 10 188 190 193 197 204 214 229 258 236 239 243 250 260 276 305 291 295 302 312 328 357 360 367 377 393 422 438 445 455 471 499 513 520 530 545 574 577 584 594 610 639 11 266 269 272 279 288 302 324 365 334 338 344 354 368 390 431 411 417 427 441 463 504 510 519 533 555 596 620 629 643 665 706 726 735 749 771 812 816 826 840 862 903 12 376 380 385 394 407 427 459 517 473 478 487 500 520 552 609 582 590 604 624 655 713 721 734 754 785 843 876 890 910 941 999 1026 1039 1059 1091 1149 1154 1168 1188 1219 1277 .5 9.ANSI/AGMA ISO 1382--2 AMERICAN NATIONAL STANDARD Table B.5 6.5 3.0 6.0 10 10 16 16 25 25 40 40 70 2.0 9.5 8.5 9.0 9.5 7.5 7.5 10 11 11 11 12 12 13 14 14 14 15 16 16 16 17 17 18 18 18 19 19 20 1 8.0 6.0 3.0 2.5 9.5 8.0 8.5 8.0 10 10 16 16 25 25 40 40 70 6.5 9.1 (concluded) Reference diameter.5 7. d.0 7.0 3.5 2.5 6.0 10 10 16 16 25 25 40 40 70 6.5 6.0 6.0 6.0 10 10 16 16 25 25 40 40 70 Accuracy grade 0 6.0 8.0 10 10 16 16 25 25 40 40 70 3. mm > = to 560 1000 1000 1600 1600 2500 2500 4000 4000 6000 6000 8000 8000 10000 10 Normal module. Cylindrical gears for general and heavy engineering -. 2) ISO 54:1977. Cylindrical gears -. 11 .Basic rack. Cylindrical gears for general engineering and for heavy engineering -.Code of inspection practice -.Part 4: Recommendations relative to surface texture and tooth contact pattern checking.AMERICAN NATIONAL STANDARD ANSI/AGMA ISO 1328--2 Bibliography The following documents are either referenced in the text of ANSI/AGMA ISO 1328--2. 1) ISO 53: 1974. Cylindrical gears -.Part 2: Definitions and Allowable Values of Deviations Relevant to Radial Composite Deviations and Runout Information or indicated for additional information.Modules and diametral pitches.Part 3: Recommendations relative to gear blanks.Code of inspection practice -. shaft centre distance and parallelism of axes. 4) ISO/DTR 10064--4:1999. Cylindrical Gears -. 3) ISO/DTR 10064--3:1996.ISO System of Accuracy -. ALEXANDRIA. VIRGINIA 22314 .PUBLISHED BY AMERICAN GEAR MANUFACTURERS ASSOCIATION 1500 KING STREET.