{"id":265440,"date":"2024-10-19T17:42:24","date_gmt":"2024-10-19T17:42:24","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iso-ts-6336-42019\/"},"modified":"2024-10-25T13:39:43","modified_gmt":"2024-10-25T13:39:43","slug":"bsi-pd-iso-ts-6336-42019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iso-ts-6336-42019\/","title":{"rendered":"BSI PD ISO\/TS 6336-4:2019"},"content":{"rendered":"<p>This document describes a procedure for the calculation of the tooth flank fracture load capacity of cylindrical spur and helical gears with external teeth.<\/p>\n<p>It is not intended to be used as a rating method&nbsp;in the design and certification process of a gearbox.<\/p>\n<p>The formulae specified are applicable for driving as well as for driven cylindrical gears while the tooth profiles are in accordance with the basic rack specified in ISO&nbsp;53. They can also be used for teeth conjugate to other racks where the actual transverse contact ratio is less than <i>\u03b5<sub>\u03b1<\/sub><\/i>&nbsp;=&nbsp;2,5. The procedure was validated for case carburized<sup>[<\/sup><sup>15<\/sup><sup>]<\/sup> gears and the formulae of this document are only applicable to case carburized gears with specifications inside the following limits:<\/p>\n<ul>\n<li>\n<p>Hertzian stress: 500&nbsp;N\/mm<sup>2<\/sup>&nbsp;\u2264&nbsp;<i>p<\/i><sub>H<\/sub>&nbsp;\u2264&nbsp;3&nbsp;000&nbsp;N\/mm<sup>2<\/sup>;<\/p>\n<\/li>\n<li>\n<p>Normal radius of relative curvature: 5&nbsp;mm&nbsp;\u2264&nbsp;<i>\u03c1<\/i><sub>red<\/sub>&nbsp;\u2264&nbsp;150&nbsp;mm;<\/p>\n<\/li>\n<li>\n<p>Case hardening depth at 550&nbsp;HV in finished condition: 0,3&nbsp;mm&nbsp;\u2264&nbsp;<i>CHD<\/i>&nbsp;\u2264&nbsp;4,5&nbsp;mm.<\/p>\n<\/li>\n<\/ul>\n<p>This document is not applicable for the assessment of types of gear tooth damage other than tooth flank fracture.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>National foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1 Scope <br \/> 2 Normative references <br \/> 3 Terms, definitions, symbols and abbreviated terms <br \/> 3.1 Terms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>3.2 Symbols and abbreviated terms  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>3.3 Definition of local contact point, CP, and material depth, y  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>4 Definition of tooth flank fracture  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>5 Basic formulae <br \/> 5.1 General <br \/> 5.2 Maximum material exposure, AFF,max  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>5.3 Local material exposure, AFF,CP(y)  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>6 Local occurring equivalent stress, \u03c4eff,CP(y) <br \/> 6.1 General <br \/> 6.2 Local equivalent stress without consideration of residual stresses, \u03c4eff,L,CP(y) <br \/> 6.2.1 General <br \/> 6.2.2 Local normal radius of relative curvature, \u03c1red,CP  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>6.2.3 Reduced modulus of elasticity, Er <br \/> 6.2.4 Local Hertzian contact stress, pdyn,CP  <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>6.3 Quasi-stationary residual stress, \u03c4eff,RS(y) <br \/> 6.3.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>6.3.2 Method A <br \/> 6.3.3 Method B <br \/> 6.4 Influence of the residual stresses on the local equivalent stress, \u2206\u03c4eff,L,RS,CP(y)  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>7 Local material strength, \u03c4per,CP(y) <br \/> 7.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>7.2 Hardness conversion factor K\u03c4,per <br \/> 7.3 Material factor Kmaterial  <\/td>\n<\/tr>\n<tr>\n<td><b>31<b><\/td>\n<td>7.4 Hardness depth profile, HV(y) <br \/> 7.4.1 General <br \/> 7.4.2 Method A  <\/td>\n<\/tr>\n<tr>\n<td><b>32<b><\/td>\n<td>7.4.3 Method B <br \/> 7.4.4 Method C1 <br \/> 7.4.5 Method C2  <\/td>\n<\/tr>\n<tr>\n<td><b>34<b><\/td>\n<td>Annex A (informative) Calculation of local equivalent stress without consideration of residual stresses, \u03c4eff,L,CP(y)  <\/td>\n<\/tr>\n<tr>\n<td><b>35<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Calculation of load capacity of spur and helical gears &#8211; Calculation of tooth flank fracture load capacity<\/b><\/p>\n<table class=\"shortdes-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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2019<\/td>\n<td>38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":265443,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-265440","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","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\/265440","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\/265443"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=265440"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=265440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=265440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}