{"id":11848,"date":"2026-06-29T08:30:43","date_gmt":"2026-06-29T08:30:43","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11848"},"modified":"2026-06-29T08:31:16","modified_gmt":"2026-06-29T08:31:16","slug":"overhead-crane-rail-installation-tolerances","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/sv\/posts\/overhead-crane-rail-installation-tolerances\/","title":{"rendered":"Toleranser f\u00f6r installation av traverskranars r\u00e4cken \u2014 10 godk\u00e4nnandekontroller baserade p\u00e5 ISO 12488-1:2012"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Inneh\u00e5llsf\u00f6rteckning<\/p><nav><ul><li><a href=\"#which-standard-applies-to-overhead-crane-rail-installation-tolerances\">Vilken standard g\u00e4ller f\u00f6r installationstoleranser f\u00f6r traverskranars r\u00e4cken<\/a><\/li><li><a href=\"#overhead-crane-rail-installation-tolerances-grade-determination\">Toleranser f\u00f6r installation av traverskransr\u00e4ls, lutningsbest\u00e4mning<\/a><\/li><li><a href=\"#the-10-tolerance-checks-grade-2\">De 10 toleranskontrollerna (grad 2)<\/a><ul><li><a href=\"#check-1-span-tolerance-\u03b4s\">Kontroll 1 \u2014 Spannm\u00e5lstolerans \u0394S<\/a><\/li><li><a href=\"#check-2-rail-straightness-in-horizontal-plane-full-length-b\">Kontroll 2 \u2014 R\u00e4lsrakhet i horisontalplanet (full l\u00e4ngd) B<\/a><\/li><li><a href=\"#check-3-rail-straightness-in-horizontal-plane-2000-mm-sample-b\">Kontroll 3 \u2014 R\u00e4lsrakhet i horisontalplanet (2000 mm prov) b<\/a><\/li><li><a href=\"#check-4-rail-straightness-in-vertical-plane-full-length-c\">Kontroll 4 \u2014 R\u00e4lsrakhet i vertikalplanet (full l\u00e4ngd) C<\/a><\/li><li><a href=\"#check-5-rail-straightness-in-vertical-plane-2000-mm-sample-c\">Kontroll 5 \u2014 R\u00e4lsrakhet i vertikalplanet (2000 mm prov) c<\/a><\/li><li><a href=\"#check-6-height-difference-between-opposite-rails-e\">Kontroll 6 \u2014 H\u00f6jdskillnad mellan motsatta skenor E<\/a><\/li><li><a href=\"#check-7-end-stop-buffer-parallelism-f\">Kontroll 7 \u2014 \u00c4ndstopp \/ Buffertparallellitet F<\/a><\/li><li><a href=\"#check-8-rail-joint-gap\">Kontroll 8 \u2014 R\u00e4lsfogavst\u00e5nd<\/a><\/li><li><a href=\"#check-9-rail-inclination-g\">Kontroll 9 \u2014 Skenans lutning G<\/a><\/li><li><a href=\"#check-10-rail-centre-vs-web-centre-deviation-k\">Kontroll 10 \u2014 J\u00e4rnv\u00e4gscentrum kontra webbcentrumavvikelse K<\/a><\/li><\/ul><\/li><li><a href=\"#recommended-overhead-crane-rail-inspection-workflow\">Rekommenderat arbetsfl\u00f6de f\u00f6r inspektion av traverskransr\u00e4cken<\/a><\/li><li><a href=\"#consequences-of-out-of-tolerance-conditions\">Konsekvenser av tillst\u00e5nd utanf\u00f6r toleransgr\u00e4nsen<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>En traverskrans l\u00f6pr\u00e4ls \u00e4r den mest of\u00f6rl\u00e5tande komponenten i hela lyftsystemet. Ett sp\u00e4nnviddsfel p\u00e5 5 mm \u00f6ver 20 meter skapar en cyklisk sidobelastning p\u00e5 \u00e4ndvagnarna som ingen m\u00e4ngd hjulfl\u00e4nssm\u00f6rjning kan \u00e5tg\u00e4rda. Oavsett om du \u00e4r en arbetsledare som verifierar en entrepren\u00f6rs arbete, en kraninstallat\u00f6r som f\u00f6rbereder montering eller en underh\u00e5llsingenj\u00f6r som utf\u00f6r en periodisk inspektion, \u00e4r dessa 10 toleranskontroller vad... <a href=\"https:\/\/www.kscranegroup.com\/sv\/posts\/a-comprehensive-guide-to-selecting-the-right-crane-rail-standard-for-your-application\/\">kranskena standard<\/a> faktiskt kr\u00e4ver.<\/p>\n\n\n\n<p>Denna guide \u00e4r baserad p\u00e5 GB\/T 10183.1-2018, vilken \u00e4r identisk med (IDT) ISO 12488-1:2012. Standarden granskades senast den 1 juli 2025 utan uppdateringar. Om ditt projekt anger ISO-toleranser g\u00e4ller v\u00e4rdena i denna guide direkt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"which-standard-applies-to-overhead-crane-rail-installation-tolerances\">Vilken standard g\u00e4ller f\u00f6r installationstoleranser f\u00f6r traverskranars r\u00e4cken<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Krantyp<\/th><th>Till\u00e4mplig standard<\/th><th>Toleransreferens<\/th><\/tr><\/thead><tbody><tr><td>Brokranar (allm\u00e4nt)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabell 2, Grad 2<\/td><\/tr><tr><td>Brokranar (k\u00f6rhastighet \u2265 112 m\/min)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabell 2, Grad 1<\/td><\/tr><tr><td>Portalkranar (allm\u00e4nt)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabell 2, Grad 2<\/td><\/tr><tr><td>Portalkranar f\u00f6r skeppsbyggnad<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabell 2, Grad 2 + Tabell 6 (fogtoleranser)<\/td><\/tr><tr><td>Enkelbalks- \/ underh\u00e4ngda kranar<\/td><td>GB\/T 10183.1-2018<\/td><td>Enligt standard<\/td><\/tr><tr><td>Grab ship lossers<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabell 2, 6, 7 \u2014 Grad 2<\/td><\/tr><tr><td>Sv\u00e4ngkranar<\/td><td>GB\/T 10183.4-2010<\/td><td>Separata toleranser<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">J\u00e4mf\u00f6relsetabell f\u00f6r kranstandarder<\/figcaption><\/figure>\n\n\n\n<p><em>Standardinst\u00e4llningen f\u00f6r de flesta bro- och portalkranar: Toleranser av grad 2 enligt tabell 2.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"overhead-crane-rail-installation-tolerances-grade-determination\">Toleranser f\u00f6r installation av traverskransr\u00e4ls, lutningsbest\u00e4mning<\/h2>\n\n\n\n<p>Toleransgrader f\u00f6r installation av traverskranars r\u00e4cken tilldelas huvudsakligen baserat p\u00e5 den totala f\u00f6rflyttningsstr\u00e4ckan under kranens livsl\u00e4ngd. Systemk\u00e4nsligheten \u2013 i vilken grad kransystemet reagerar p\u00e5 laster som genereras av en toleransavvikelse \u2013 kan dock kr\u00e4va uppgradering med en grad. H\u00f6gk\u00e4nsliga system inkluderar kranar med l\u00e5nga spann och minimal hjulbas p\u00e5 \u00e4ndvagnen, eller kranar som hanterar precisionspositionerade laster.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1749\" height=\"899\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11839\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances.png 1749w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances-1536x790.png 1536w\" sizes=\"(max-width: 1749px) 100vw, 1749px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Toleransgrad<\/th><th>Typisk till\u00e4mpning<\/th><\/tr><\/thead><tbody><tr><td>\u00c5rskurs 1<\/td><td>H\u00f6ghastighetskranar (\u2265112 m\/min), precisionspositionering, l\u00e5ng livsl\u00e4ngd<\/td><\/tr><tr><td>\u00c5rskurs 2<\/td><td>Standardbro- och portalkranar (vanligast)<\/td><\/tr><tr><td>\u00c5rskurs 3<\/td><td>L\u00e5ghastighetskranar med l\u00e5gt utnyttjande<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Toleranser f\u00f6r installation av traverskransr\u00e4l, tabell \u00f6ver klasstill\u00e4mpningar<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-10-tolerance-checks-grade-2\">De 10 toleranskontrollerna (grad 2)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-1-span-tolerance-\u03b4s\">Kontroll 1 \u2014 Spannm\u00e5lstolerans \u0394S<\/h3>\n\n\n\n<p>Avst\u00e5ndet mellan j\u00e4rnv\u00e4gscentrum vid vilken punkt som helst l\u00e4ngs banan.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Sp\u00e4nnvidd (S)<\/th><th>Grad 2 Tolerans<\/th><th>Grad 1 Tolerans<\/th><\/tr><\/thead><tbody><tr><td>S \u2264 16 m<\/td><td>\u0394S = \u00b15 mm<\/td><td>\u0394S = \u00b13 mm<\/td><\/tr><tr><td>S &gt; 16 m<\/td><td>\u0394S = \u00b1[5 + 0,25 \u00d7 (S \u2212 16)] mm, max \u00b115 mm<\/td><td>max \u00b110 mm<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">J\u00e4mf\u00f6relsetabell f\u00f6r spanntoleranser<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"901\" height=\"372\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11840\"\/><\/figure>\n\n\n\n<p><strong>Exempel:<\/strong> En kran med 28 m spann: \u0394S = \u00b1[5 + 0,25 \u00d7 (28 \u2212 16)] = \u00b1[5 + 0,25 \u00d7 12] = <strong>\u00b18 mm<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-2-rail-straightness-in-horizontal-plane-full-length-b\">Kontroll 2 \u2014 R\u00e4lsrakhet i horisontalplanet (full l\u00e4ngd) B<\/h3>\n\n\n\n<p><strong>B = \u00b110 mm<\/strong> n\u00e4r som helst l\u00e4ngs hela r\u00e4lsl\u00e4ngden.<\/p>\n\n\n\n<p>Detta \u00e4r den horisontella avvikelsen mellan r\u00e4lshuvudets mittlinje och den teoretiska mittlinjen. M\u00e4t fr\u00e5n en sp\u00e4nd vajerreferenslinje i r\u00e4lshuvudets h\u00f6jd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-3-rail-straightness-in-horizontal-plane-2000-mm-sample-b\">Kontroll 3 \u2014 R\u00e4lsrakhet i horisontalplanet (2000 mm prov) b<\/h3>\n\n\n\n<p><strong>b = 1 mm<\/strong> \u00f6ver en valfri provtagningsl\u00e4ngd p\u00e5 2000 mm.<\/p>\n\n\n\n<p>Detta f\u00e5ngar upp lokala veck \u2013 den sorten som f\u00e5r ett enskilt hjul att pl\u00f6tsligt skrapa i sidled. En 2000 mm linjal och bladm\u00e5tt ger en tillr\u00e4cklig f\u00e4ltkontroll.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"327\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3Overhead-Crane-Rail-Installation-Tolerances.jpg\" alt=\"\" class=\"wp-image-11841\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-4-rail-straightness-in-vertical-plane-full-length-c\">Kontroll 4 \u2014 R\u00e4lsrakhet i vertikalplanet (full l\u00e4ngd) C<\/h3>\n\n\n\n<p><strong>C = \u00b110 mm<\/strong> n\u00e4r som helst l\u00e4ngs hela r\u00e4lsl\u00e4ngden.<\/p>\n\n\n\n<p>Detta \u00e4r den vertikala avvikelsen f\u00f6r r\u00e4lshuvudet fr\u00e5n den teoretiska h\u00f6jdlinjen. Anv\u00e4nd ett vattenpass eller en lasersp\u00e5rare f\u00f6r l\u00e5nga banor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-5-rail-straightness-in-vertical-plane-2000-mm-sample-c\">Kontroll 5 \u2014 R\u00e4lsrakhet i vertikalplanet (2000 mm prov) c<\/h3>\n\n\n\n<p><strong>c = 2 mm<\/strong> \u00f6ver en valfri provtagningsl\u00e4ngd p\u00e5 2000 mm.<\/p>\n\n\n\n<p>Lokala dopp eller upph\u00f6jningar \u2014 den sorten man k\u00e4nner n\u00e4r kranen rullar \u00f6ver en ostadig r\u00e4lsskarv. En precisionslinjal och djupm\u00e4tare r\u00e4cker f\u00f6r denna kontroll.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"897\" height=\"269\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/4Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11842\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-6-height-difference-between-opposite-rails-e\">Kontroll 6 \u2014 H\u00f6jdskillnad mellan motsatta skenor E<\/h3>\n\n\n\n<p><strong>E = \u00b11,0 \u00d7 S mm<\/strong>, d\u00e4r S \u00e4r sp\u00e4nnvidden i meter, <strong>max \u00b110 mm<\/strong>(Klass 1: E = \u00b10,5 \u00d7 S mm, max \u00b15 mm.)**<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"339\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/5Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11843\"\/><\/figure>\n\n\n\n<p><strong>Exempel:<\/strong> Ett 20 m spann \u2192 E = \u00b11,0 \u00d7 20 = \u00b120 mm, begr\u00e4nsat vid <strong>\u00b110 mm<\/strong>.<\/p>\n\n\n\n<p>Detta \u00e4r m\u00e4tningen av tv\u00e4rniv\u00e5n. En h\u00f6jdskillnad mellan r\u00e4lsen lutar hela kranen och skapar en lateral kraftkomponent fr\u00e5n den lyfta lasten. Det \u00e4r en av de mest f\u00f6rbisedda kontrollerna.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-7-end-stop-buffer-parallelism-f\">Kontroll 7 \u2014 \u00c4ndstopp \/ Buffertparallellitet F<\/h3>\n\n\n\n<p><strong>F = \u00b11,0 \u00d7 S mm<\/strong>, d\u00e4r S \u00e4r spannet i meter, <strong>max \u00b110 mm<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"889\" height=\"331\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/6Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11844\"\/><\/figure>\n\n\n\n<p>B\u00e5da \u00e4ndstoppen m\u00e5ste vara parallella med varandra och vinkelr\u00e4ta mot r\u00e4lsens l\u00e4ngsg\u00e5ende axel. Om de inte \u00e4r det, tr\u00e4ffar ena sidan av kranen f\u00f6re den andra, vilket koncentrerar slagkraften p\u00e5 en \u00e4ndvagn ist\u00e4llet f\u00f6r att dela den \u00f6ver b\u00e5da.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-8-rail-joint-gap\">Kontroll 8 \u2014 R\u00e4lsfogavst\u00e5nd<\/h3>\n\n\n\n<p>Spalten vid r\u00e4lsskarvarna m\u00e5ste ge utrymme f\u00f6r termisk expansion. F\u00f6r svetsade fogar (f\u00f6redras f\u00f6r l\u00e5nga banor och portalkranar f\u00f6r skeppsbyggnad) m\u00e5ste fogen slipas i j\u00e4mnh\u00f6jd efter svetsning. Tabell 6 i GB\/T 10183.1 anger specifika toleranser f\u00f6r skarvkonstruktioner.<\/p>\n\n\n\n<p>\u00c4ven 0,5 mm vertikalt steg vid en r\u00e4lsskarv orsakar en h\u00f6rbar st\u00f6t och p\u00e5skyndar hjulslitaget.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-9-rail-inclination-g\">Kontroll 9 \u2014 Skenans lutning G<\/h3>\n\n\n\n<p><strong>G = 6\u2030<\/strong> (6 promille).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"840\" height=\"294\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/7Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11845\"\/><\/figure>\n\n\n\n<p>Vissa r\u00e4lsprofiler (som QU-serien) har lutande l\u00f6pytor. Lutningstoleransen m\u00e5ste verifieras mot hjulets slitbaneprofil f\u00f6r att s\u00e4kerst\u00e4lla korrekt kontaktgeometri.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-10-rail-centre-vs-web-centre-deviation-k\">Kontroll 10 \u2014 J\u00e4rnv\u00e4gscentrum kontra webbcentrumavvikelse K<\/h3>\n\n\n\n<p><strong>K = \u00b10,5 \u00d7 t<em>min<\/em><\/strong><em>, d\u00e4r t<\/em>min \u00e4r den minsta bantjockleken i mm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"863\" height=\"346\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/8Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11846\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"899\" height=\"356\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/9Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11847\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"recommended-overhead-crane-rail-inspection-workflow\">Rekommenderat arbetsfl\u00f6de f\u00f6r inspektion av traverskransr\u00e4cken<\/h2>\n\n\n\n<p>F\u00f6lj denna sekvens p\u00e5 plats f\u00f6r godk\u00e4nnande av en traverskrans r\u00e4cke:<\/p>\n\n\n\n<ol>\n<li><strong>Sp\u00e4nnviddskontroll f\u00f6rst<\/strong> \u2014 Om spannet \u00e4r f\u00f6r l\u00e5ngt \u00e4r allt annat akademiskt. Anv\u00e4nd en kalibrerad laseravst\u00e5ndsm\u00e4tare med 2\u20133 meters mellanrum l\u00e4ngs hela banan.<\/li>\n\n\n\n<li><strong>Tv\u00e4rniv\u00e5 (E) sekund<\/strong> \u2014 Ett roterande laservattenpass eller optiskt vattenpass. Markera en skena som referensh\u00f6jd och m\u00e4t den andra i f\u00f6rh\u00e5llande till den.<\/li>\n\n\n\n<li><strong>Horisontell rakhet (B, b)<\/strong> \u2014 Sp\u00e4nd pianotr\u00e5d i r\u00e4lshuvudh\u00f6jd, m\u00e4t f\u00f6rskjutningarna med en st\u00e5llinjal.<\/li>\n\n\n\n<li><strong>Vertikal rakhet (C, c)<\/strong> \u2014 Niv\u00e5instrument eller lasersp\u00e5rare. F\u00f6r den lokala kontrollen p\u00e5 2000 mm r\u00e4cker en precisionslinjal.<\/li>\n\n\n\n<li><strong>Gemensam inspektion<\/strong> \u2014 Varje skarv. Kontrollera vertikalt steg och mellanrum.<\/li>\n\n\n\n<li><strong>\u00c4ndstopp (F)<\/strong> \u2014 Kontrollera att skenan \u00e4r vinkelr\u00e4t mot r\u00e4lsaxeln. B\u00e5da sidor m\u00e5ste vidr\u00f6ra samtidigt.<\/li>\n\n\n\n<li><strong>Dokumentera allt<\/strong> \u2014 Fotografera varje m\u00e4tning med instrumentavl\u00e4sningen synlig. Detta \u00e4r inte byr\u00e5krati; det \u00e4r ditt f\u00f6rsvar n\u00e4r n\u00e5gon senare h\u00e4vdar att r\u00e4lsen installerades korrekt och att kranen m\u00e5ste vara defekt.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"consequences-of-out-of-tolerance-conditions\">Konsekvenser av tillst\u00e5nd utanf\u00f6r toleransgr\u00e4nsen<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Utanf\u00f6r toleransl\u00e4get<\/th><th>Symptom<\/th><th>F\u00f6ljd<\/th><\/tr><\/thead><tbody><tr><td>Sp\u00e4nnvidden \u00e4r f\u00f6r bred\/smal<\/td><td>Hjulfl\u00e4nsen gnider kontinuerligt mot en r\u00e4ls<\/td><td>Accelererat fl\u00e4nsslitage, \u00f6kat r\u00f6relsemotst\u00e5nd<\/td><\/tr><tr><td>Horisontell kn\u00e4ckning (b \u00f6verskriden)<\/td><td>Lokalt skrubbande, h\u00f6rbart gnisslande<\/td><td>Plana fl\u00e4ckar p\u00e5 hjul, r\u00e4lshuvud som splittras<\/td><\/tr><tr><td>Fel p\u00e5 flera niv\u00e5er (E \u00f6verskridet)<\/td><td>Kranen glider \u00e5t l\u00e5gt h\u00e5ll n\u00e4r bromsarna sl\u00e4pps<\/td><td>Oj\u00e4mna hjulbelastningar, tendens till snedst\u00e4llning<\/td><\/tr><tr><td>Fogsteg &gt; 0,5 mm<\/td><td>St\u00f6tljud vid varje skarvpassage<\/td><td>Hjullagersutmattning, strukturella vibrationer<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">J\u00e4mf\u00f6relsetabell f\u00f6r konsekvenser av f\u00f6rh\u00e5llanden utanf\u00f6r toleransgr\u00e4nsen<\/figcaption><\/figure>\n\n\n\n<p><strong>Refererade standarder (<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\">Fr\u00e5ga om kinesiska kranstandarder<\/a>):<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 10183.1-2018 \u2014 Kranar \u2014 Toleranser f\u00f6r hjul och l\u00f6pband \u2014 Del 1: Allm\u00e4nt (IDT ISO 12488-1:2012)<\/li>\n\n\n\n<li>ISO 12488-1:2012 \u2014 Kranar \u2014 Toleranser f\u00f6r hjul och k\u00f6r- och traversbanor \u2014 Del 1: Allm\u00e4nt<\/li>\n\n\n\n<li>GB\/T 14405-2011 \u2014 Allm\u00e4nna brokranar (specificerar sp\u00e5rtoleranser av klass 2)<\/li>\n\n\n\n<li>GB\/T 14406-2011 \u2014 Generella portalkranar (specificerar sp\u00e5rtoleranser av klass 2)<\/li>\n\n\n\n<li>GB\/T 27997-2011 \u2014 Portalkranar f\u00f6r skeppsbyggnad (klass 2 + svetsade fogar f\u00f6redras)<\/li>\n\n\n\n<li>GB\/T 26475-2021 \u2014 Lossare f\u00f6r gripfartyg<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"An overhead crane runway rail is the most unforgiving component in the entire lifting system. A 5 mm span error across 20 metres creates a cyclic side load on the end carriages that no amount of wheel","protected":false},"featured_media":11866,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[801,793,799,798,121,802,797,800,803],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts\/11848"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":2,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts\/11848\/revisions"}],"predecessor-version":[{"id":11867,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts\/11848\/revisions\/11867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/media\/11866"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/media?parent=11848"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/posts_category?post=11848"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/posts_tag?post=11848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}