{"id":12018,"date":"2026-07-15T01:18:26","date_gmt":"2026-07-15T01:18:26","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=12018"},"modified":"2026-07-15T01:18:33","modified_gmt":"2026-07-15T01:18:33","slug":"overhead-crane-wheel-diameter-selection-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/el\/posts\/overhead-crane-wheel-diameter-selection-guide\/","title":{"rendered":"\u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd: \u0388\u03bd\u03b1\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf GB\/T 26477.1-2011"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/p><nav><ul><li><a href=\"#step-1-determine-the-effective-rail-width\">\u0392\u03ae\u03bc\u03b1 1: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c1\u03ac\u03b3\u03b1\u03c2<\/a><\/li><li><a href=\"#step-2-determine-the-allowable-specific-pressure-pl\">\u0392\u03ae\u03bc\u03b1 2: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 PL<\/a><\/li><li><a href=\"#step-3-determine-coefficient-c\u2081\">\u0392\u03ae\u03bc\u03b1 3: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae c\u2081<\/a><\/li><li><a href=\"#step-4-determine-coefficient-c\u2082\">\u0392\u03ae\u03bc\u03b1 4: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae c\u2082<\/a><\/li><li><a href=\"#step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">\u0392\u03ae\u03bc\u03b1 5: \u0395\u03c0\u03b1\u03bb\u03ae\u03b8\u03b5\u03c5\u03c3\u03b7 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd \u2014 \u03a4\u03cd\u03c0\u03bf\u03b9 1 \u03ba\u03b1\u03b9 2<\/a><\/li><li><a href=\"#step-6-calculate-equivalent-working-wheel-load-pmean\">\u0392\u03ae\u03bc\u03b1 6: \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 Pmean<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p><a href=\"https:\/\/www.kscranegroup.com\/el\/crane-wheel-assemblies\/\">\u03a4\u03c1\u03bf\u03c7\u03bf\u03af \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd<\/a> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b1 \u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1 \u03b5\u03be\u03b1\u03c1\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd, \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03b7 \u03c4\u03b7 \u03b4\u03bf\u03bc\u03ae \u03c4\u03bf\u03c5 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd, \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03c4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c4\u03c9\u03bd \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd \u03bc\u03b5 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b9\u03c2 \u03c1\u03ac\u03b3\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b4\u03c1\u03cc\u03bc\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2-\u03b1\u03c0\u03bf\u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2. \u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03c4\u03b7\u03c2 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03b3\u03ad\u03c6\u03c5\u03c1\u03b1\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03b7\u03bd \u03c4\u03ac\u03c3\u03b7 \u03b5\u03c0\u03b1\u03c6\u03ae\u03c2 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd-\u03c1\u03ac\u03b3\u03b1\u03c2, \u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2, \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03b6\u03c9\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7\u03c2. \u0388\u03bd\u03b1\u03c2 \u03c4\u03c1\u03bf\u03c7\u03cc\u03c2 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03b7\u03c4\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03c1\u03bf\u03c5\u03bb\u03b5\u03bc\u03ac\u03bd, \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7 \u03c6\u03b8\u03bf\u03c1\u03ac \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c1\u03ac\u03b3\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03cc\u03c9\u03c1\u03b7 \u03b1\u03c3\u03c4\u03bf\u03c7\u03af\u03b1 \u03b5\u03be\u03b1\u03c1\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd, \u03b5\u03bd\u03ce \u03ad\u03bd\u03b1\u03c2 \u03c4\u03c1\u03bf\u03c7\u03cc\u03c2 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03c5 \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c5\u03be\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae\u03c2. <\/p>\n\n\n\n<p>\u0391\u03c5\u03c4\u03cc\u03c2 \u03bf \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b5\u03be\u03b7\u03b3\u03b5\u03af \u03bc\u03b9\u03b1 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03ad\u03be\u03b9 \u03b2\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7\u03c2 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf GB\/T 26477.1-2011, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03b5\u03b9 \u03c4\u03bf \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2, \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03c1\u03bf\u03c5\u03bb\u03b5\u03bc\u03ac\u03bd, \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2, \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b1\u03bb\u03ae\u03b8\u03b5\u03c5\u03c3\u03b7\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd\u03c2, \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03b3\u03ad\u03c6\u03c5\u03c1\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf \u03c3\u03b5 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ad\u03c2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1597\" height=\"985\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png\" alt=\"\" class=\"wp-image-12011\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png 1597w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions-1536x947.png 1536w\" sizes=\"(max-width: 1597px) 100vw, 1597px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a4\u03cd\u03c0\u03bf\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd (\u03a0\u03b7\u03b3\u03ae: JB\/T 6392-2008)<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u03a4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03c4\u03bf\u03c0\u03b9\u03ba\u03ce\u03bd \u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03c3\u03c4\u03b7 \u03b4\u03bf\u03bc\u03ae \u03c4\u03bf\u03c5 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c4\u03c9\u03bd \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd (\u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c4\u03ac\u03c3\u03b5\u03c9\u03bd, \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bc\u03ae \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac, \u03c4\u03bf\u03c0\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03c0\u03bb\u03ac\u03ba\u03b5\u03c2 \u03c6\u03bb\u03ac\u03bd\u03c4\u03b6\u03b1\u03c2 \u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7\u03c2 \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u0399 \u03ba\u03b1\u03b9 \u03ba\u03c5\u03b2\u03b9\u03ba\u03ad\u03c2 \u03b4\u03bf\u03ba\u03bf\u03cd\u03c2) \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03b7\u03c2 \u03c4\u03b1\u03be\u03b9\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2. \u0391\u03c5\u03c4\u03ac \u03b4\u03b5\u03bd \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf \u2014 \u03b1\u03bd\u03b1\u03c4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03bb\u03ae\u03c1\u03b7 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-1-determine-the-effective-rail-width\">\u0392\u03ae\u03bc\u03b1 1: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c1\u03ac\u03b3\u03b1\u03c2<\/h2>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b7 \u03ae \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03c3\u03c4\u03b5\u03c6\u03b1\u03bd\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03c1\u03b5\u03be\u03af\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03b5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 <strong>\u03bc\u03b5\u03b3\u03ac\u03bb\u03bf<\/strong> \u03ba\u03b1\u03b9 \u03b1\u03ba\u03c4\u03af\u03bd\u03b1 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 <strong>\u03c1<\/strong> \u03c3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac:<\/p>\n\n\n\n<p>b = l \u2212 2 \u00d7 r<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1529\" height=\"1029\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Figure-2-P-type-or-QU-type-rail-cross-section.png\" alt=\"\" class=\"wp-image-12012\"\/><figcaption class=\"wp-element-caption\"><em>\u0394\u03b9\u03b1\u03c4\u03bf\u03bc\u03ae \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5 P \u03ae QU (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<ul>\n<li>\u0393\u03b9\u03b1 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ad\u03c2 \u03ae \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd\u03c2 \u03bc\u03b5 \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03c3\u03c4\u03b5\u03c6\u03b1\u03bd\u03c9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2 \u03ba\u03cd\u03bb\u03b9\u03c3\u03b7\u03c2, \u03b7 \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 PL \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c5\u03be\u03b7\u03b8\u03b5\u03af \u03ba\u03b1\u03c4\u03ac 10% (\u03bb\u03cc\u03b3\u03c9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03b5\u03c0\u03b1\u03c6\u03ae\u03c2 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd-\u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2).<\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd\u03c2 \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03ba\u03ac\u03c4\u03c9 \u03c6\u03bb\u03ac\u03bd\u03c4\u03b6\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03b4\u03bf\u03ba\u03bf\u03cd \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u0399 (\u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b7, \u03ba\u03c9\u03bd\u03b9\u03ba\u03ae \u03ae \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03c3\u03c4\u03b5\u03c6\u03b1\u03bd\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1), \u03c4\u03bf \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <code>b = w \u2212 r<\/code>, \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd D \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03ad\u03c3\u03bf \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03b2\u03b1\u03bb\u03bb\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5 \u03c0\u03bb\u03ac\u03c4\u03bf\u03c5\u03c2 (w \u2212 r).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1416\" height=\"1111\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/3Figure-3-Wheel-running-on-a-beam-flange.png\" alt=\"\" class=\"wp-image-12013\"\/><figcaption class=\"wp-element-caption\"><em>\u03a4\u03c1\u03bf\u03c7\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c6\u03bb\u03ac\u03bd\u03c4\u03b6\u03b1 \u03b4\u03bf\u03ba\u03bf\u03cd (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-2-determine-the-allowable-specific-pressure-pl\">\u0392\u03ae\u03bc\u03b1 2: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 PL<\/h2>\n\n\n\n<p>\u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 PL \u03b4\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 1. \u03a4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03ac \u03c5\u03bb\u03b9\u03ba\u03ac \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03bc\u03bf\u03c1\u03c6\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c7\u03c5\u03c4\u03cc, \u03c3\u03c6\u03c5\u03c1\u03ae\u03bb\u03b1\u03c4\u03bf \u03ae \u03b5\u03bb\u03b1\u03c4\u03cc \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 \u03ae \u03c7\u03c5\u03c4\u03bf\u03c3\u03af\u03b4\u03b7\u03c1\u03bf \u03c3\u03c6\u03b1\u03b9\u03c1\u03bf\u03b5\u03b9\u03b4\u03bf\u03cd\u03c2 \u03b3\u03c1\u03b1\u03c6\u03af\u03c4\u03b7. \u039a\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae PL, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03c5\u03c0\u03cc\u03c8\u03b7 \u03ad\u03bd\u03b1 \u03b2\u03ac\u03b8\u03bf\u03c2 \u03c3\u03ba\u03bb\u03b7\u03c1\u03c5\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03ad\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 0,01D.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2095\" height=\"751\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png\" alt=\"\" class=\"wp-image-12014\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png 2095w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-1536x551.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-2048x734.png 2048w\" sizes=\"(max-width: 2095px) 100vw, 2095px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 1 \u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03b1\u03be\u03af\u03b1\u03c2 PL (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u0397 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc fu (UTS) \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c4\u03ac\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03ad\u03be\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c5\u03bb\u03b9\u03ba\u03cc \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b8\u03c1\u03b1\u03cd\u03c3\u03b7 \u03c5\u03c0\u03cc \u03c4\u03ac\u03c3\u03b7, \u03bc\u03b5\u03c4\u03c1\u03bf\u03cd\u03bc\u03b5\u03bd\u03b7 \u03c3\u03b5 MPa (1 MPa = 1 N\/mm\u00b2), \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03bf\u03cd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-3-determine-coefficient-c\u2081\">\u0392\u03ae\u03bc\u03b1 3: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae c\u2081<\/h2>\n\n\n\n<p>\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 c\u2081 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd. \u0392\u03bb\u03ad\u03c0\u03b5 \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2008\" height=\"783\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png\" alt=\"\" class=\"wp-image-12027\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png 2008w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table-1536x599.png 1536w\" sizes=\"(max-width: 2008px) 100vw, 2008px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 2 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03c4\u03b9\u03bc\u03ce\u03bd c\u2081 (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-4-determine-coefficient-c\u2082\">\u0392\u03ae\u03bc\u03b1 4: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae c\u2082<\/h2>\n\n\n\n<p>\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 <strong>c\u2082<\/strong> \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b7\u03bd \u03c4\u03b1\u03be\u03b9\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd. \u039a\u03b1\u03c4\u03ac \u03ba\u03bf\u03b9\u03bd\u03ae \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae, \u03b1\u03c5\u03c4\u03cc \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03c4\u03b1\u03be\u03b9\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd \u03ba\u03b1\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03bf \u03ae \u03ad\u03bd\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf \u03ba\u03b1\u03b8\u03ae\u03ba\u03bf\u03bd \u03c4\u03bf\u03c5 \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd. \u0392\u03bb\u03ad\u03c0\u03b5 \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png\" alt=\"\" class=\"wp-image-12028\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 3 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03c4\u03b9\u03bc\u03ce\u03bd c\u2082 (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">\u0392\u03ae\u03bc\u03b1 5: \u0395\u03c0\u03b1\u03bb\u03ae\u03b8\u03b5\u03c5\u03c3\u03b7 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b5\u03c1\u03b1\u03bd\u03bf\u03cd \u2014 \u03a4\u03cd\u03c0\u03bf\u03b9 1 \u03ba\u03b1\u03b9 2<\/h2>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03bf\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd, \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03cd\u03c3\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03bf \u03c4\u03c1\u03bf\u03c7\u03cc\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03ad\u03be\u03b5\u03b9 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae \u03c6\u03b8\u03bf\u03c1\u03ac. \u0399\u03c3\u03c7\u03cd\u03bf\u03c5\u03bd \u03b4\u03cd\u03bf \u03c4\u03cd\u03c0\u03bf\u03b9 \u03b5\u03c0\u03b1\u03bb\u03ae\u03b8\u03b5\u03c5\u03c3\u03b7\u03c2 (\u03a6\u03cc\u03c1\u03bc\u03bf\u03c5\u03bb\u03b1 1 \u03ba\u03b1\u03b9 \u03a6\u03cc\u03c1\u03bc\u03bf\u03c5\u03bb\u03b1 2).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1842\" height=\"854\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png\" alt=\"\" class=\"wp-image-12015\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png 1842w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1-1536x712.png 1536w\" sizes=\"(max-width: 1842px) 100vw, 1842px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a6\u03cc\u03c1\u03bc\u03bf\u03c5\u03bb\u03b1 1 (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2184\" height=\"720\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png\" alt=\"\" class=\"wp-image-12016\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png 2184w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-1536x506.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-2048x675.png 2048w\" sizes=\"(max-width: 2184px) 100vw, 2184px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a6\u03cc\u03c1\u03bc\u03bf\u03c5\u03bb\u03b1 2 (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u03a3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf<\/th><th>\u0395\u03bd\u03bd\u03bf\u03b9\u03b1<\/th><th>\u039c\u03bf\u03bd\u03ac\u03b4\u03b1<\/th><\/tr><\/thead><tbody><tr><td>\u03c1\u03b5<\/td><td>\u0394\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd<\/td><td>mm<\/td><\/tr><tr><td>\u03c3\u03b9<\/td><td>\u03a0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2<\/td><td>mm<\/td><\/tr><tr><td>\u03a0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ba\u03ae<\/td><td>\u0395\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03b4\u03b1\u03c3\u03bc\u03cc (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>\u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03c5\u03c0\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc\u03c2 A, B \u03ae C (\u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2)<\/td><td>\u0392<\/td><\/tr><tr><td>\u03a0\u03bc\u03ad\u03b1\u03bd<\/td><td>\u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u0391 \u03ba\u03b1\u03b9 \u0392, \u03c0\u03bf\u03c5 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c4\u03b9\u03bc\u03ae<\/td><td>\u0392<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"load-combination-categories\">\u039a\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u03a3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf<\/th><th>\u0395\u03bd\u03bd\u03bf\u03b9\u03b1<\/th><th>\u039c\u03bf\u03bd\u03ac\u03b4\u03b1<\/th><\/tr><\/thead><tbody><tr><td>\u03c1\u03b5<\/td><td>\u0394\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd<\/td><td>mm<\/td><\/tr><tr><td>\u03c3\u03b9<\/td><td>\u03a0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03c3\u03b9\u03b4\u03b7\u03c1\u03bf\u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2<\/td><td>mm<\/td><\/tr><tr><td>\u03a0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ba\u03ae<\/td><td>\u0395\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7 (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b5\u03be\u03b1\u03c1\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03b4\u03b1\u03c3\u03bc\u03cc (\u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03a0\u03af\u03bd\u03b1\u03ba\u03b1 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>\u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03c5\u03c0\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc\u03c2 A, B \u03ae C (\u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2)<\/td><td>\u0392<\/td><\/tr><tr><td>\u03a0\u03bc\u03ad\u03b1\u03bd<\/td><td>\u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u0391 \u03ba\u03b1\u03b9 \u0392, \u03c0\u03bf\u03c5 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c4\u03b9\u03bc\u03ae<\/td><td>\u0392<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-6-calculate-equivalent-working-wheel-load-pmean\">\u0392\u03ae\u03bc\u03b1 6: \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 Pmean<\/h2>\n\n\n\n<p>\u03a4\u03bf Pmean \u2014 \u03c4\u03bf \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd A \u03ba\u03b1\u03b9 B \u2014 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03ad\u03b3\u03b3\u03b9\u03c3\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03a4\u03cd\u03c0\u03bf 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png\" alt=\"\" class=\"wp-image-12017\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>\u03a6\u03cc\u03c1\u03bc\u03bf\u03c5\u03bb\u03b1 3 (\u03a0\u03b7\u03b3\u03ae: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>\u03a3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2<\/strong>: \u03bf\u03b9 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c4\u03cd\u03c0\u03bf\u03b9 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c5\u03bd \u03bc\u03cc\u03bd\u03bf \u03b3\u03b9\u03b1 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd\u03c2 \u03bc\u03b5 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03c5\u03c0\u03b5\u03c1\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03b1 1,25 m. \u0397 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b3\u03b9\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5\u03c2, \u03b7 \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b7 \u03c0\u03af\u03b5\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03b7\u03c2 \u03c1\u03ac\u03b3\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03c9\u03b8\u03b5\u03af\u00b7 \u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7\u03c2 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03b4\u03b5\u03bd \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac\u03c4\u03b1\u03b9.<\/p>\n\n\n\n<p><strong>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2<strong><strong><strong><strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">\u0395\u03c1\u03ce\u03c4\u03b7\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u039a\u03b9\u03bd\u03b5\u03b6\u03b9\u03ba\u03ac \u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u0393\u03b5\u03c1\u03b1\u03bd\u03ce\u03bd<\/a>)<\/strong><\/strong><\/strong><\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 26477.1-2011 \u0393\u03b5\u03c1\u03b1\u03bd\u03bf\u03af \u2014 \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c4\u03c1\u03bf\u03c7\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae \u03b4\u03bf\u03bc\u03ae \u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7\u03c2 \u03c4\u03c1\u03bf\u03c7\u03b9\u03ac\u03c2 \u2014 \u039c\u03ad\u03c1\u03bf\u03c2 1: \u0393\u03b5\u03bd\u03b9\u03ba\u03ac<\/li>\n\n\n\n<li>GB\/T 6974.1-2008 \u0393\u03b5\u03c1\u03b1\u03bd\u03bf\u03af \u2014 \u039b\u03b5\u03be\u03b9\u03bb\u03cc\u03b3\u03b9\u03bf \u2014 \u039c\u03ad\u03c1\u03bf\u03c2 1: \u0393\u03b5\u03bd\u03b9\u03ba\u03ac (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>GB\/T 20863.1-2021 \u0393\u03b5\u03c1\u03b1\u03bd\u03bf\u03af \u2014 \u03a4\u03b1\u03be\u03b9\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7 \u2014 \u039c\u03ad\u03c1\u03bf\u03c2 1: \u0393\u03b5\u03bd\u03b9\u03ba\u03ac (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>GB\/T 22437.1-2018 \u0393\u03b5\u03c1\u03b1\u03bd\u03bf\u03af \u2014 \u0391\u03c1\u03c7\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd \u2014 \u039c\u03ad\u03c1\u03bf\u03c2 1: \u0393\u03b5\u03bd\u03b9\u03ba\u03ac<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"When designing or procuring an overhead crane, how do you determine the correct wheel diameter for a given wheel load? The answer involves effective rail width, allowable specific bearing pressure, sp","protected":false},"featured_media":10134,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[867,868,801,62,863,850,121,865,864,866],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/xmxposts\/12018"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions"}],"predecessor-version":[{"id":12054,"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions\/12054"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/media\/10134"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/media?parent=12018"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/posts_category?post=12018"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/el\/wp-json\/wp\/v2\/posts_tag?post=12018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}