{"id":486663,"date":"2024-11-05T12:14:20","date_gmt":"2024-11-05T12:14:20","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/agma-iso-1328-1-b14\/"},"modified":"2024-11-05T12:14:20","modified_gmt":"2024-11-05T12:14:20","slug":"agma-iso-1328-1-b14","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/agma\/agma-iso-1328-1-b14\/","title":{"rendered":"AGMA ISO 1328-1-B14"},"content":{"rendered":"<p>\n<u><strong>SCOPE<\/strong><\/u><\/p>\n<p>\tThis part of ISO 1328 establishes a tolerance classification system relevant to manufacturing and conformity assessment of tooth flanks of individual cylindrical involute gears. It specifies definitions for gear flank tolerance terms, the structure of the flank tolerance class system, and allowable values.<\/p>\n<p>\tThis part of ISO 1328 provides the gear manufacturer and the gear buyer with a mutually advantageous reference for uniform tolerances. Eleven flank tolerance classes are defined, numbered 1 to 11, in order of increasing tolerance. Formulae for tolerances are provided in 5.3. These tolerances are applicable to the following ranges:<\/p>\n<ul>\n<li>\n<p>\t\t5 = <em>z<\/em> = 1 000<\/li>\n<li>\n<p>\t\t5 mm = <em>d<\/em> = 15 000 mm<\/li>\n<li>\n<p>\t\t0.5 mm = <em>m<\/em><sub>n<\/sub> = 70 mm<\/li>\n<li>\n<p>\t\t4 mm = <em>b<\/em> = 1 200 mm<\/li>\n<li>\n<p>\t\t\u00df = 45\u00b0<\/li>\n<\/ul>\n<p>\twhere<\/p>\n<ul>\n<li>\n<em>d<\/em> is the reference diameter;<\/li>\n<li>\n<em>m<\/em><sub>n<\/sub> is the normal module;<\/li>\n<li>\n<em>b<\/em> is the facewidth (axial);<\/li>\n<li>\n<em>z<\/em> is the number of teeth;<\/li>\n<li>\n<p>\t\t\u00df is the helix angle.<\/li>\n<\/ul>\n<p>\tSee Clause 4 for required and optional measuring methods.<\/p>\n<p>\tGear design is beyond the scope of this part of ISO 1328.<\/p>\n<p>\tSurface texture is not considered in this part of ISO 1328. For additional information on surface texture, see ISO\/TR 10064-4.<\/p>\n<p>\n<u><strong>FOREWORD<\/strong><\/u><\/p>\n<p>\t[The foreword, footnotes and annexes, if any, in this document are provided for informational purposes only and are not to be construed as a part of ANSI\/AGMA ISO 1328-1-B14, <em>Cylindrical Gears &#8211; ISO System of Flank Tolerance Classification &#8211; Part 1: Definitions and Allowable Values of Deviations Relevant to Flanks of Gear Teeth<\/em>.]<\/p>\n<p>\tThe <em>Gear Classification Manual<\/em>, originally published as AGMA 390.01 in 1961 and revised as AGMA 390.02 in September 1964, provided tolerances for gear tooth flanks.\u00a0 AGMA 390.03, published in 1973, was a major revision that consolidated the information in AGMA 390.02 with several other AGMA publications, including:<\/p>\n<ul>\n<li>\n<p>\t\tAGMA 235.02 (Feb. 1966), <em>Information Sheet for Master Gears;<\/em><\/li>\n<li>\n<p>\t\tAGMA 239.01 (Oct. 1965), <em>Measuring Methods and Practices Manual for Control of Spur, Helical and Herringbone Gears;<\/em><\/li>\n<li>\n<p>\t\tAGMA 239.01A (Sept. 1966), <em>Measuring Methods and Practices Manual for Control of Bevel and Hypoid Gears, <\/em>and parts of;<\/li>\n<li>\n<p>\t\tAGMA 236.05 (ASA B6.11, June 1956), <em>Inspection of Fine&#8211;Pitch Gears<\/em>.<\/li>\n<\/ul>\n<p>\tData was added for gear rack and fine-pitch worms and worm gears. The former separate sections of AGMA 390.02 for coarse-pitch and fine-pitch spur, helical and herringbone gearing were blended to offer a single, compatible classification system. The tolerance identifier \u201cQ\u201d was added to indicate that the tolerances in 390.03 apply. If Q was not used as a prefix in the quality number, tolerances in AGMA 390.01 and 390.02 applied.<\/p>\n<p>\tANSI\/AGMA 2000-A88, Gear Classification and Inspection Handbook &#8211; Tolerances and Measuring Methods for Unassembled Spur and Helical Gears, was an update of those sections from AGMA 390.03 for parallel axis gears only. Additionally, the formulas stated the tolerances in both U.S. standard and metric terms.\u00a0 The content was revised, but basic tolerance levels were unchanged from AGMA 390.03. The other material in AGMA 390.03 on bevels and worms was replaced by ANSI\/AGMA 2009-A99 and ANSI\/AGMA 2011-A98, respectively. ANSI\/AGMA 2000 was approved by AGMA membership in January 1988, and as an American National Standard Institute (ANSI) standard on March 31, 1988.<\/p>\n<p>\tANSI\/AGMA ISO 1328-1 was developed by ISO Technical Committee 60 as an International Standard with ANSI\/AGMA participation. It was first published in February 1995, was adopted without changes by the AGMA membership in June 1999, and was approved as an American National Standard in November 1999. While the subjects covered in this standard were similar to those in ANSI\/AGMA 2000-A88, there were significant differences.\u00a0 They included:<\/p>\n<ul>\n<li>\n<p>\t\tAccuracy grade numbering system was reversed, such that the smallest number represented the smallest tolerance;<\/li>\n<li>\n<p>\t\tRelative magnitudes of elemental tolerances for a single grade are in a different proportion;<\/li>\n<li>\n<p>\t\tThe \u201cprofile evaluation range\u201d and \u201chelix evaluation range\u201d, where the tolerances are applied, are defined for less flank area than in ANSI\/AGMA 2000-A88;<\/li>\n<li>\n<p>\t\tThe \u201cK Chart\u201d is not used for the permissible tolerance values;<\/li>\n<li>\n<p>\t\tRunout is not included as one of the elements with a tolerance;<\/li>\n<li>\n<p>\t\tConcepts of \u201cmean measurement trace\u201d, \u201cdesign profile\u201d, \u201cdesign helix\u201d, \u201cslope deviation\u201d and \u201cform deviation\u201d are defined.<\/li>\n<li>\n<p>\t\tTolerances are established by geometric mean values of relevant ranges of parameters in tables, not by formulas;<\/li>\n<\/ul>\n<p>\tTherefore, the users of ANSI\/AGMA ISO 1328-1 were cautioned to be careful when comparing tolerance values formerly specified using ANSI\/AGMA 2000-A88.<\/p>\n<p>\tANSI\/AGMA 2015-1-A01 later replaced ANSI\/AGMA 2000-A88 and ANSI\/AGMA ISO 1328-1.\u00a0 It combined the grading system of ISO 1328-1with the methods of ANSI\/AGMA 2000-A88, and added concepts of accuracy grade grouping for minimum measurement requirements, filtering, data density, and roughness limits to form deviations.\u00a0 Tolerance formulas were based on the actual gear geometry rather than on geometric mean values.<\/p>\n<p>\tISO 1328-1:2013 was prepared by Technical Committee ISO\/TC 60, Gears.\u00a0 This second edition cancels and replaces the first edition (ISO 1328-1:1995).\u00a0 While the basis of this edition was AGMA 2015-1 A01, the new revision includes significant technical changes.\u00a0 In particular, the following should be noted:<\/p>\n<ul>\n<li>\n<p>\t\tThe scope of applicability has been expanded;<\/li>\n<li>\n<p>\t\tRevisions have been made to the formulae which define the flank tolerances;<\/li>\n<li>\n<p>\t\tAnnexes have been added to describe additional methods for analysis of modified profiles and helices;<\/li>\n<li>\n<p>\t\tThe evaluation of runout, previously handled in ISO 1328-2, has been brought back into this part of ISO 1328.<\/li>\n<\/ul>\n<p>\tAGMA Gear Accuracy Committee approved adoption of the new ISO 1328-1:2013 in November 2013.\u00a0\u00a0 AGMA membership approved the adoption in August 2014. It was approved as an American National Standard on September 30, 2014.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Cylindrical gears &#8211; ISO system of flank tolerance classification &#8211; Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/agma\/\"><b>AGMA<\/b><\/a><\/td>\n<td>2014<\/td>\n<td>47<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":486671,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2659],"product_tag":[],"class_list":{"0":"post-486663","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-agma","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/486663","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/486671"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=486663"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=486663"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=486663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}