{"id":8234569,"date":"2026-10-24T17:28:39","date_gmt":"2026-10-24T17:28:39","guid":{"rendered":"https:\/\/scn.eu\/?post_type=scn_guide&#038;p=8234569"},"modified":"2026-10-24T17:29:40","modified_gmt":"2026-10-24T17:29:40","slug":"slaebering","status":"publish","type":"scn_guide","link":"https:\/\/scn.eu\/da\/guider\/slaebering\/","title":{"rendered":"Sl\u00e6bering \u2013 s\u00e5dan virker den, og s\u00e5dan v\u00e6lger du rigtigt"},"content":{"rendered":"<div class=\"scn-guide\">\n<h1>Sl\u00e6bering \u2013 s\u00e5dan virker den, og s\u00e5dan v\u00e6lger du rigtigt<\/h1>\n<p class=\"g-lead\">En sl\u00e6bering (slipring) overf\u00f8rer str\u00f8m, signaler og data mellem en fast og en roterende del, uden at kablerne snoes over. Her gennemg\u00e5r vi, hvordan den virker, hvilke typer der findes, og hvad du skal se p\u00e5, n\u00e5r du v\u00e6lger.<\/p>\n<div class=\"g-short\"><b class=\"t\">Kort svar<\/b><\/p>\n<ul>\n<li><b>Sl\u00e6bering<\/b> \u2013 en roterende elektrisk forbindelse. B\u00f8rster i den faste del glider mod ringe p\u00e5 den roterende del.<\/li>\n<li><b>N\u00f8dvendig, n\u00e5r noget roterer ubegr\u00e6nset<\/b> \u2013 mere end et par omgange i samme retning, hvor et kabel ellers ville blive snoet over.<\/li>\n<li><b>Typer<\/b> \u2013 kapsel, gennemg\u00e5ende hul, pandekage og miniature samt varianter til Ethernet, fiber, h\u00f8j str\u00f8m og luft eller v\u00e6ske.<\/li>\n<li><b>V\u00e6lg efter<\/b> antal kredse, str\u00f8m og sp\u00e6nding, signaltype, omdrejningstal, milj\u00f8 og m\u00e5l.<\/li>\n<li><b>Data kr\u00e6ver den rigtige konstruktion<\/b> \u2013 feltbus og Ethernet kr\u00e6ver sl\u00e6beringe, der er bygget til det.<\/li>\n<\/ul>\n<\/div>\n<h2>Hvad er en sl\u00e6bering?<\/h2>\n<p>En sl\u00e6bering best\u00e5r af en rotor og en stator. P\u00e5 rotoren sidder ringe af messing eller kobber, ofte belagt med guld eller s\u00f8lv. I statoren sidder b\u00f8rster, der ligger an mod ringene. Hver ring med sin b\u00f8rste udg\u00f8r en kreds, s\u00e5 en sl\u00e6bering med 12 ringe kan overf\u00f8re 12 separate ledere.<\/p>\n<figure><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/scn-guide-slapring-f1-da.webp\" alt=\"Principskitse af en sl\u00e6bering: B\u00f8rster i det faste hus glider mod ringe p\u00e5 den roterende aksel, s\u00e5 str\u00f8m og signaler kan overf\u00f8res\" width=\"1520\" height=\"530\" loading=\"lazy\" decoding=\"async\"><figcaption>B\u00f8rsterne st\u00e5r stille, ringene roterer \u2013 str\u00f8mmen g\u00e5r over, hvor de m\u00f8des.<\/figcaption><\/figure>\n<p>S\u00e5 l\u00e6nge en bev\u00e6gelse kun g\u00e5r nogle f\u00e5 omgange frem og tilbage, er en kabelk\u00e6de eller en kabeltromle ofte nok. N\u00e5r noget skal rotere kontinuerligt, som et drejebord, et kamera eller navet i en vindm\u00f8lle, er der brug for en sl\u00e6bering. Den kaldes ogs\u00e5 slipring, roterende elektrisk forbindelse eller elektrisk swivel.<\/p>\n<p>B\u00f8rsterne er ofte af \u00e6delmetal til signaler og af s\u00f8lvgrafit til h\u00f8je str\u00f8mme. Fiberb\u00f8rster, bundter af tynde metaltr\u00e5de, giver flere kontaktpunkter pr. ring, mindre slid og lavere st\u00f8j.<\/p>\n<h2>Hvilke typer sl\u00e6beringe findes der?<\/h2>\n<figure><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/scn-guide-slapring-f2-da.webp\" alt=\"Fire almindelige typer: kapselsl\u00e6bering, sl\u00e6bering med gennemg\u00e5ende hul, pandekagesl\u00e6bering og drejekobling til luft og v\u00e6ske\" width=\"1520\" height=\"430\" loading=\"lazy\" decoding=\"async\"><figcaption>Fire almindelige udf\u00f8relser. Der findes ogs\u00e5 varianter til Ethernet, fiber og h\u00f8je str\u00f8mme.<\/figcaption><\/figure>\n<div class=\"g-tbl\">\n<table>\n<thead>\n<tr>\n<th>Type<\/th>\n<th>Kendetegn<\/th>\n<th>Typisk anvendelse<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"n\">Kapsel<\/td>\n<td>Kompakt, lille diameter, kabler ud i begge ender<\/td>\n<td>Kameraer, sm\u00e5 robotter, m\u00e5leborde<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Gennemg\u00e5ende hul<\/td>\n<td>Hul aksel, s\u00e5 en aksel, slange eller et kabel kan g\u00e5 gennem midten<\/td>\n<td>Drejeborde, pakkemaskiner, vindkraft<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Pandekage<\/td>\n<td>Flad, ringene ligger i \u00e9t plan<\/td>\n<td>Hvor byggeh\u00f8jden er begr\u00e6nset<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Miniature<\/td>\n<td>F\u00e5 kredse, lav str\u00f8m, meget sm\u00e5 m\u00e5l<\/td>\n<td>Instrumenter, sm\u00e5 gimbals, laboratorieudstyr<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Ethernet og feltbus<\/td>\n<td>Kredse bygget til h\u00f8je datahastigheder<\/td>\n<td>Robotter, kameraer, roterende maskiner med I\/O<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Fiberoptisk drejekobling<\/td>\n<td>Til lys i en optisk fiber, uf\u00f8lsom over for forstyrrelser<\/td>\n<td>Radar, forsvar, undervandsfart\u00f8jer<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Drejekobling til medier<\/td>\n<td>Til trykluft, v\u00e6ske eller vakuum, kan kombineres med elektriske kredse<\/td>\n<td>P\u00e5fyldningsmaskiner, gribere, produktion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Hvad skal du se p\u00e5, n\u00e5r du v\u00e6lger sl\u00e6bering?<\/h2>\n<ul>\n<li><b>Antal kredse<\/b> \u2013 t\u00e6l str\u00f8m, signaler og data hver for sig, og l\u00e6g nogle reserver til.<\/li>\n<li><b>Str\u00f8m og sp\u00e6nding pr. kreds<\/b> \u2013 ved h\u00f8je str\u00f8mme kan flere ringe parallelforbindes.<\/li>\n<li><b>Signaltype<\/b> \u2013 svage analoge signaler, for eksempel fra vejeceller, kr\u00e6ver guld mod guld og sk\u00e6rmning. Ethernet og feltbus kr\u00e6ver kredse, der er konstrueret til det.<\/li>\n<li><b>Omdrejningstal<\/b> \u2013 angives i omdrejninger pr. minut. En miniaturesl\u00e6bering kan klare nogle hundrede omdrejninger i minuttet, mens en sl\u00e6bering til vindkraft er lavet til lave omdrejningstal og lang drift.<\/li>\n<li><b>Levetid<\/b> \u2013 angives i antal omdrejninger og afh\u00e6nger af omdrejningstal, str\u00f8m og kontaktmateriale.<\/li>\n<li><b>Elektrisk st\u00f8j<\/b> \u2013 variationen i kontaktmodstanden, n\u00e5r ringen roterer, angivet i milliohm. Vigtigt for sensorsignaler.<\/li>\n<li><b>Milj\u00f8<\/b> \u2013 IP-klasse, temperatur, vibrationer, salt og kondens. IP40 er nok indend\u00f8rs, udend\u00f8rs og i vindkraft kr\u00e6ves ofte IP65.<\/li>\n<\/ul>\n<h2>Hvor bruges sl\u00e6beringe?<\/h2>\n<ul>\n<li><b>Vindkraft<\/b> \u2013 sl\u00e6beringen mellem nacelle og nav overf\u00f8rer effekt til pitchmotorerne og signaler og CAN-bus til vingernes styresystem.<\/li>\n<li><b>Emballage og f\u00f8devarer<\/b> \u2013 roterende p\u00e5fyldnings- og etiketteringsmaskiner, ofte med drejekobling til trykluft.<\/li>\n<li><b>Robotter og automation<\/b> \u2013 robotled, drejeborde og f\u00f8rerl\u00f8se trucks (AGV) med roterende overdel.<\/li>\n<li><b>Mobile maskiner<\/b> \u2013 kraner og gravemaskiner, hvor overdelen kan dreje ubegr\u00e6nset.<\/li>\n<li><b>Kameraer og overv\u00e5gning<\/b> \u2013 PTZ-kameraer, der drejer 360\u00b0 uden stop og sender video.<\/li>\n<li><b>Forsvar og radar<\/b> \u2013 radarantenner, sensort\u00e5rne og antennepositionere med koaksiale RF-drejekoblinger og fiber.<\/li>\n<li><b>Medicoteknik<\/b> \u2013 CT-scannere, hvor r\u00f8ntgenr\u00f8r og detektorer roterer kontinuerligt rundt om patienten.<\/li>\n<\/ul>\n<h2>Fem almindelige fejl<\/h2>\n<ol class=\"g-pit\">\n<li><b>Ethernet gennem almindelige signalringe.<\/b> Det kan virke p\u00e5 bordet, men give pakketab i drift. V\u00e6lg en sl\u00e6bering, der er specificeret til protokollen og hastigheden.<\/li>\n<li><b>Statoren monteres stift.<\/b> Hvis b\u00e5de rotor og stator sp\u00e6ndes fast, belastes lejerne af selv den mindste opretningsfejl. Statoren skal holdes med en medbringer, der tillader lidt bev\u00e6gelse.<\/li>\n<li><b>Forkert kontaktmateriale.<\/b> Svage signaler kr\u00e6ver guld. H\u00f8je str\u00f8mme kr\u00e6ver materialer, der t\u00e5ler varmen, for eksempel s\u00f8lvgrafit.<\/li>\n<li><b>Effekt og signaler blandes.<\/b> Forstyrrelser fra motorkredse kan smitte af p\u00e5 sensorsignaler. Adskil og sk\u00e6rm dem.<\/li>\n<li><b>Milj\u00f8et bliver glemt.<\/b> En sl\u00e6bering med IP40 holder ikke udend\u00f8rs. T\u00e6nk p\u00e5 kondens, st\u00f8v, salt og temperatur.<\/li>\n<\/ol>\n<h2>Sl\u00e6beringe hos SCN<\/h2>\n<p>Vi har sl\u00e6beringe fra Jinpat: miniaturesl\u00e6beringe, pandekagesl\u00e6beringe, sl\u00e6beringe til servosystemer og vindkraft, varianter til USB, HDMI og SDI samt koaksiale RF-drejekoblinger og pneumatiske drejekoblinger. Sl\u00e6beringe skal ofte tilpasses, s\u00e5 start med en kravliste: kredse, str\u00f8m, signaler, omdrejningstal, milj\u00f8 og m\u00e5l.<\/p>\n<h3>Eksempler fra vores sortiment<\/h3>\n<div class=\"g-prod\"><a class=\"g-pc\" href=\"https:\/\/scn.eu\/da\/vare\/windturbinesliprings-da\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2025\/01\/Wind_turbine_slip_rings.jpeg\" alt=\"Jinpat Slipringe til vindm\u00f8ller\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">Jinpat<\/span><span class=\"g-pn\">Slipringe til vindm\u00f8ller<\/span><span class=\"g-pw\">Til effekt, signaler og CAN-bus til vingernes styresystem. Effektringe op til 63 A, IP65.<\/span><\/a><a class=\"g-pc\" href=\"https:\/\/scn.eu\/da\/vare\/lpt012a-0602-da\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2025\/01\/LPT012A-0602.jpeg\" alt=\"Jinpat LPT012A-0602 Gennemg\u00e5ende glidering\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">Jinpat<\/span><span class=\"g-pn\">LPT012A-0602 Gennemg\u00e5ende glidering<\/span><span class=\"g-pw\">Sl\u00e6bering med gennemg\u00e5ende hul p\u00e5 12,7 mm, seks kredse \u00e0 2 A og flere kontaktpunkter pr. ring for lav st\u00f8j.<\/span><\/a><a class=\"g-pc\" href=\"https:\/\/scn.eu\/da\/vare\/lpfo-01a-da\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2025\/01\/LPFO-01A.jpeg\" alt=\"Jinpat LPFO-01A fiberoptisk sl\u00e6bering\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">Jinpat<\/span><span class=\"g-pn\">LPFO-01A fiberoptisk sl\u00e6bering<\/span><span class=\"g-pw\">Fiberoptisk drejekobling til store datam\u00e6ngder, IP65\/IP68 og \u221245 til 85 \u00b0C.<\/span><\/a><\/div>\n<div class=\"g-links\"><a href=\"https:\/\/scn.eu\/da\/vare-kategori\/produkter\/komponenter\/slip-rings-da\/\">Sl\u00e6beringe<\/a><a href=\"https:\/\/scn.eu\/da\/vare-kategori\/produkter\/komponenter\/\">Komponenter<\/a><a href=\"https:\/\/scn.eu\/da\/vare-kategori\/produkter\/sensors-da\/absolute-encoders-da\/\">Absolutte encodere<\/a><a href=\"https:\/\/scn.eu\/da\/vare-kategori\/produkter\/sensors-da\/incremental-encoders\/\">Inkrementelle encodere<\/a><\/div>\n<div class=\"g-cta\">\n<p>Har du en roterende konstruktion, der skal have str\u00f8m, signaler eller data? Sp\u00f8rg en af vores ingeni\u00f8rer \u2013 du f\u00e5r svar inden for 24 timer.<\/p>\n<p><a href=\"https:\/\/scn.eu\/da\/kontakt\/\">Sp\u00f8rg en ingeni\u00f8r<\/a><\/div>\n<h2>Ofte stillede sp\u00f8rgsm\u00e5l<\/h2>\n<details>\n<summary>Hvad er forskellen p\u00e5 en sl\u00e6bering og en kommutator?<\/summary>\n<p>En sl\u00e6bering har hele ringe og overf\u00f8rer str\u00f8mmen u\u00e6ndret. En kommutator har segmenter, der vender str\u00f8mretningen, n\u00e5r rotoren drejer, som i en DC-motor med b\u00f8rster.<\/p>\n<\/details>\n<details>\n<summary>Kan man sende Ethernet gennem en sl\u00e6bering?<\/summary>\n<p>Ja, med en sl\u00e6bering, der er konstrueret til Ethernet. Kontroll\u00e9r, hvilken hastighed den er specificeret til, for eksempel 100 Mbit\/s eller 1 Gbit\/s.<\/p>\n<\/details>\n<details>\n<summary>Hvor l\u00e6nge holder en sl\u00e6bering?<\/summary>\n<p>Levetiden angives i antal omdrejninger og afh\u00e6nger af omdrejningstal, str\u00f8m, kontaktmateriale og milj\u00f8. Fiberb\u00f8rster og \u00e6delmetal giver l\u00e6ngere levetid.<\/p>\n<\/details>\n<details>\n<summary>Hvad er en sl\u00e6beringsmotor?<\/summary>\n<p>En asynkronmotor, hvor rotorviklingen er forbundet via sl\u00e6beringe til eksterne modstande. Det giver h\u00f8jt startmoment og lav startstr\u00f8m og bruges for eksempel i kraner og knusere.<\/p>\n<\/details>\n<details>\n<summary>Findes der kontaktl\u00f8se sl\u00e6beringe?<\/summary>\n<p>Ja. De overf\u00f8rer energi og data induktivt, kapacitivt eller optisk, uden b\u00f8rster, der slides. De bruges blandt andet i CT-scannere.<\/p>\n<\/details>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>En sl\u00e6bering (slipring) overf\u00f8rer str\u00f8m, signaler og data mellem en fast og en roterende del, uden at kablerne snoes over. Her gennemg\u00e5r vi, hvordan den virker, hvilke typer der findes, og hvad du skal se p\u00e5, n\u00e5r du v\u00e6lger.<\/p>\n","protected":false},"author":11,"featured_media":8234423,"template":"","meta":{"_yoast_wpseo_focuskw":"sl\u00e6bering","_yoast_wpseo_metadesc":"Sl\u00e6bering (slipring): s\u00e5dan virker den, hvilke typer der findes, og hvad du skal v\u00e6lge efter \u2013 kredse, str\u00f8m, omdrejningstal, data og IP-klasse.","_kad_post_transparent":"","_kad_post_title":"hide","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"hide","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_scn_guide_cats":[741],"_scn_guide_sectors":[1012,1011,985],"_scn_guide_type":"tech","_scn_guide_order":38,"footnotes":""},"class_list":["post-8234569","scn_guide","type-scn_guide","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is 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