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Wartungsfrei und hoch belastbar - Gleitlager in X-life-Qualitt - Grogelenklager fr Mega-Schiff Pieter Schelte

19/01/2015

2015-01-19 | 000-005-538 DE-DE

SCHAEFFLER AG, FRANKFURT A. M./SCHWEINFURT

Schaeffler auf der Hannover Messe 2015 (Halle 22, Stand A 12)

Wartungsfrei und hoch belastbar - Gleitlager in X-life-Qualit t - Gro gelenklager f r Mega-Schiff Pieter Schelte

In Krananwendungen oder in der Wasserkraft k nnen Gleitlager ihre Vorz ge voll ausspielen, da sie f r die dort auftretenden langsamen Dreh-, Schwenk- und Kippbewegungen bei sehr hohen Lasten bestens geeignet sind. Schaeffler hat sein Portfolio an Gleitlagerl sungen systematisch ausgebaut und bietet dabei eine breite Auswahl an wartungsfreien Gleitlagerwerkstoffen. Neben den seit vielen Jahren bew hrten wartungsfreien Gleitlagern mit ELGOGLIDE umfasst das Produktprogramm auch Metall-Polymer-Verbundgleitlager sowie Gleitlager mit ELGOTEX.

F r das Arbeitsschiff Pieter Schelte konnte Schaeffler den bisher gr ten Lieferauftrag an ELGES-Gelenklagern realisieren. So liefert Schaeffler insgesamt ber 240 Lager mit einem Au endurchmesser von 400 bis 1060 mm f r das Topsides Lift System , der Hebeeinrichtung f r Aufbauten von lbohrplattformen.

ELGOGLIDE - bew hrt bei h chsten Anspr chen

Die Vorteile der Lager mit ELGOGLIDE liegen in ihrer absoluten Wartungsfreiheit und sehr hohen Belastbarkeit, insbesondere bei h chsten einseitigen Lasten und Schwenkbewegung. ELGOGLIDE steht f r eine Gleitschicht, die in erster Linie aus einem technischen Gewebe, bestehend aus St tz- und PTFE-Fasern, sowie einer Kunstharzmatrix aufgebaut ist. Die spezielle Variante ELGOGLIDE W11 erm glicht minimale Reibwerte auch bei niedrigen Pressungen.

Metall-Polymer-Verbundgleitlager - wirtschaftlich auf kleinstem Bauraum

Die besonderen Eigenschaften der Metall-Polymer-Verbundgleitlager ergeben sich aus der Werkstoffkombination von Kunststoff und Metall. Die Materialverbindung erm glicht verschlei arme Gleiteigenschaften bei gleichzeitig hoher Tragf higkeit und W rmeleitf higkeit.

Die Best ndigkeit der Metall-Polymer-Verbundgleitlager wurde f r viele Medien getestet. Die optionale Ausf hrung mit Bronzer cken erm glicht den Einsatz im Wasser. Die Metall-Polymer-Verbundgleitlager sind eine wirtschaftliche Alternative f r Anwendungen mit kleinstem Bauraum und vergleichsweise hoher Gleitgeschwindigkeit.

ELGOTEX - wartungsfrei, verschlei fest, wasserfest

Hoch beanspruchte Lagerstellen, beispielsweise in Bau- und Landmaschinen, F rderanlagen oder Transportfahrzeugen, wurden herk mmlich mit fett- oder lgeschmierten Massivgleitlagern ausgestattet. Gleitlager mit ELGOTEX sind bestens geeignet, um bisherige wartungspflichtige L sungen durch eine umweltfreundliche, wartungsfreie Technologie zu ersetzen. Durch die verwendete Materialpaarung sind sie auf Gebrauchsdauer wartungsfrei und eignen sich hervorragend f r den Einsatz bei rauen Umgebungsbedingungen.

INA-Gleitlager mit ELGOTEX WA wurden speziell f r den Marineeinsatz als Ruderlager oder in Stabilisatoren entwickelt. Vom Germanischen Lloyd wurde ELGOTEX WA im Marineeinsatz f r Belastungen bis 15 N/mm zertifiziert. Das salzwasserresistente ELGOTEX WA-Material besteht aus zwei Schichten. Durchg ngige Kunst- und PTFE-Fasern bilden die innen liegende Gleitschicht, die mit F ll- und Festschmierstoffen in einer Harzmatrix eingebettet ist. Die u ere Schicht besteht aus ebenso durchgehenden Glasfasern in Epoxidharz. Die verwendete Materialpaarung erm glicht einen gleichbleibend niedrigen Reibwert bei geringem Verschlei und absoluter Wartungsfreiheit.

ELGES-Gro gelenklager in X-life-Qualit t - Arbeitsschiff Pieter Schelte

Das Schiff Pieter Schelte des Offshore-Unternehmen Allseas ist das gr te Arbeitsschiff der Welt. Neben der Installation von lbohrplattformen und dem Verlegen von Pipelines ist es mit seinem Topsides Lift System (TLS) und dessen Hubkapazit t von bis zu 48.000 t in der Lage, selbst die schwersten Aufbauten von Bohrinseln sowie mit seinem Jacket Lift System (JLS) mit einer Hubkapazit t von bis zu 25.000 t deren Stahlunterkonstruktion in einem St ck zu installieren bzw. deinstallieren.

Schaeffler liefert wartungsfreie Gro gelenklager mit ELGOGLIDE-Gleitschicht f r die Hebel des TLS an Allseas sowie f r die Hydraulikzylinder des TLS an Bosch Rexroth.

Sobald sich das Schiff an einer im Meeresgrund fest verankerten Bohrinsel bewegt, m ssen die enormen Lasten, die durch die Meeresbewegung auf das Schiff wirken, ausgeglichen werden. Die Hebel des TLS lassen diese Wellenbewegungen zu. Die Hydraulikzylinder des TLS sorgen wiederum f r das sichere An- und Abheben des Plattformoberteils ohne Besch digungen. Sowohl f r den Lastenausgleich als auch um die Bewegung der Hydraulikzylinder zu erm glichen, m ssen die Lager h chst tragf hig sein.

Die Gelenklager in X-life-Qualit t sind mit dem extrem best ndigen und wartungsfreien ELGOGLIDE-Werkstoff ausgestattet. Der Offshore-Einsatz der Lager erfordert h chste Korrosionsbest ndigkeit, eine hohe Feuchtigkeitsbest ndigkeit des Gleitmaterials, sowie absolute Wartungsfreiheit ber eine Lebensdauer von mindestens 25 Jahren. Um die Sicherheitsbestimmungen der Marineindustrie zu erf llen, wurden die Lager von Lloyd's Register zertifiziert.

Im Zuge der Einf hrung von X-life f r ELGES-Gro gelenklager wurde die Verschraubung des axial geteilten Au enrings optimiert. Durch eine spezielle Behandlung des Gewebes vor dem H rteverfahren wird zudem eine verbesserte Haftung des Gewebes sowie eine optimierte Feuchtigkeitsbest ndigkeit erzielt. Insgesamt ergeben sich durch die X-life-Optimierung eine um 15% gesteigerte Tragzahl sowie eine um 15% l ngere Lebens- und Gebrauchsdauer. Somit steigt auch der Nutzen f r den Kunden: er profitiert von Downsizing-M glichkeiten bzw. einer h heren Leistungsdichte, verl ngerten Wartungsintervallen sowie von einer gesteigerten Gesamtwirtschaftlichkeit (TCO).
LINK: http://www.ina.de/content.ina.de/en/press/press-releases/press-details...
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