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52134 Herzogenrath, Germany CEROBEAR GmbH Manufacturer ✓ Supplier ✓ Service provider ✓
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Description
Von allen technischen Keramiken ist Si3N4 nach
heutigem Stand der beste Werkstoff für Wälzkörper und Lagerringe. Vor
allem sein geringes Gewicht macht ihn zu einem idealen Werkstoff für
drehzahlbeanspruchte Wälzlager. Die geringe Wärmedehnung ist günstig für
Keramikwälzkörper, bei Erwärmung verringert sich die Lagerluft nicht so
stark wie bei Stahlkugeln, ein Plus an Sicherheit. Bei größeren
Temperaturdifferenzen kann aber die Anbindung an metallene Umbauteile zu
Passungproblemen führen. Hier ist ZrO2 eine montage- und anwendungsfreundliche Alternative zu Si3N4.
Technical data
In CEROBEAR Hybrid- und Keramikwälzlagern wird fast ausschließlich Siliciumnitrid (Si3N4) eingesetzt. Seltener kommt Zirkonoxid (ZrO2) als Ringwerkstoff in Kombination mit Kugeln aus Si3N4
zum Einsatz. Härte, Druckfestigkeit, Verschleißbeständigkeit und
Korrosionsbeständigkeit sind deutlich höher als bei Wälzlagerstahl. Ein
hoher E-Modul vermindert die Verformung unter Belastung, ein Lager mit
Keramikkugeln ist steifer als ein Stahllager. Zudem bildet sich eine
kleinere Kontaktfläche (Hertzsche Kontaktellipse) aus, weniger
Reibverluste sind die Folge. Allerdings führt eine kleinere
Kontaktfläche zu einer höheren Hertzschen Pressung, diese Belastung ist
für Keramik aber nicht problematisch.
Areas of application
Anwendungsgebiete: Chemische Industrie, Halbleiterindustrie, Lebensmittelindustrie, Luft- und Raumfahrt, Medizintechnik, Motorsport, Werkzeugmaschinenbau und Segelsport
DIN
DIN 625, DIN 628, DIN 5412, DIN 722, DIN
ISO
Show more DIN 625, DIN 628, DIN 5412, DIN 722
91074 Herzogenaurach, Germany Schaeffler Technologies AG & Co. KG Manufacturer ✓
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About us
Show more The Schaeffler Group is a global automotive and industrial supplier. The Schaeffler Group is already making a decisive contribution to “Mobility for Tomorrow” today with its high-precision components and systems in engine, transmission, and chassis applications, in addition to rolling and plain bearing solutions for a large number of industrial applications. Since its beginnings, the Schaeffler company has been characterized by groundbreaking innovations and global customer orientation.
About us
Founded in 1998, Shandong XUANYE Precision Machinery Co., Ltd. covers an area of 88,850 square meters. Now the company has fixed assets over several hundred millions and in-service employees 500. As a late-model that incorporates research and development, manufacture as well as sales, the annual output of the company reaches to 3 million sets of bearings and its annual output value is more than 28 million yuan.
About us
Show more LYC Bearing Corporation was established in 1954.The technical expertise has evolved into engaging 1500 plus engineering personnel and 7000 manufacturing associates. The product range is divided into nine individual categories with more than 10000 different variants the bearings range extends from IDs of 8mm up to a maximum OD of 13.5 metres. As a world class bearing manufacturer LYC takes pride in their quality and maintains their quality assurance certifications namely ISO 9001,ISO 14001,OHSAS18001,TS16949 AS9100B and AAR, LYC currently produce a number of bearing classes including the P2 class with ranging from 8mm weighing 25.4g to maximum OD of 13.5 meters with a weight at 32 metric tons. Some of these bearings can consist of as many as 2386 individual components.LYC’s mission has been and continues to be to provide its customers with fully integrated solutions these include Design & Development Manufacturing Testing & Evaluation and an After Market Service that is second to none.
01127 Dresden, Germany ib-s Industriebedarf Sachsen GmbH Manufacturer ✓ Trader ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
07745 Jena, Germany Jenaer Gewindetechnik GmbH Manufacturer ✓ Trader ✓ Supplier ✓ Service provider ✓
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About us
We are providers of spindle and linear motion technology manufacturing and repair services in the UK, USA and Germany, with clients worldwide.
73760 Ostfildern (Kemnat), Germany Josef Blässinger GmbH + Co. KG Trader ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
88085 Langenargen, Germany W + A Wälzlager- und Antriebstechnik GmbH Trader ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
85307 Schernbuch, Germany Agrolager Technischer Handel Inh. Renate Bauer Trader ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
02625 Bautzen, Germany ASW Wälzlager und Antriebstechnik GmbH Manufacturer ✓ Trader ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
42279 Wuppertal, Germany BLIS Kugelgewindetriebe GmbH Manufacturer ✓ Trader ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Ball Bearings
97424 Schweinfurt, Germany C&U Europe Holding GmbH Manufacturer ✓ Supplier ✓ Service provider ✓
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33729 Bielefeld, Germany Carl Werthenbach Konstruktionsteile GmbH & Co. KG Trader ✓ Supplier ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Ball Bearings
09212 Limbach-Oberfrohna, Germany FMT Flexible Montagetechnik GmbH Trader ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Ball Bearings
48153 Munster, Germany Friedrich Braun GmbH Manufacturer ✓ Trader ✓ Supplier ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
33758 Schloß Holte-Stukenbrock, Germany Grumbach Maschinenteile GmbH Manufacturer ✓ Trader ✓
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- Spindle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
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71364 Winn, Germany Hecht Kugellager GmbH & Co KG Manufacturer ✓ Trader ✓
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01979 Lauchhammer, Germany HFG Transport-Technik GmbH Manufacturer ✓ Supplier ✓
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- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Rolling Bearings | Needle Bearings
- Spindle Bearings | Radial Bearings | Milling Spindle
35606 Solms-Oberbiel, Germany IBC Wälzlager GmbH Manufacturer ✓ Trader ✓ Supplier ✓ Service provider ✓
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- Spindle Bearings | Rolling Bearings | Ball Bearings
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