Beschichtete Insutect A Lager – Zuverlässiger Schutz vor Stromdurchgangsschäden

Mit Insutect A beschichtete Lager besitzen aufgrund ihrer Aluminiumoxid-Beschichtung am Innen- oder Außenring einen hohen elektrischen Isolationsschutz. Die Keramikschicht hat die Aufgabe, den Stromdurchgang durch das Lager zu reduzieren oder gar zu eliminieren. Die Außenabmessungen der stromisolierenden Wälzlager entsprechen den Abmessungen nach DIN 616 (ISO 15) und sind somit durch Standardlagern austauschbar. Am häufigsten werden Rillenkugellager und Zylinderrollenlager mit Aluminiumoxid-Beschichtung eingesetzt, aber auch andere Bauformen können auf Anfrage geliefert werden.

Produkteigenschaften der Insutect A Lager

Lager mit Aluminiumoxid-Beschichtung besitzen einen hohen Isolationsschutz und sind über das Nachsetzzeichen J20 und einer zusätzlichen Buchstabenkombination GA, GB oder GI gekennzeichnet. Diese Beschichtung wird im Plasmaspritzverfahren auf die Lagerflächen aufgebracht. Die Aluminiumoxid-Schicht ist nicht nur besonders verschleißfest, sondern dient zudem als ein guter Wärmeleiter.

Die Standardbeschichtung J20GA deckt bereits eine Vielzahl industrieller Anwendungen ab. Für gesteigerte Anforderungen oder höhere elektrische Ströme, wie sie im Bahnsektor vorkommen, bietet unsere Premium-Schichtdicke J20GB den zusätzlichen Schutz und die Performance, die Sie benötigen. In der J20G-Serie bieten Lager mit beschichtetem Innenring (J20GI) die höchste Impedanz und damit den bestmöglichen Schutz gegen elektrische Ströme.

Mit der neuen J20G-Serie, setzt Schaeffler neue Maßstäbe in puncto Zuverlässigkeit, auch bei hoher Luftfeuchtigkeit und löst damit die beschichteten Lager der J20A-Serie ab. Gerne unterstützen wir Sie mit unseren maßgeschneiderten Lösungen. Kontaktieren Sie uns für eine persönliche Beratung.

So profitieren Sie von den Insutect A Lagern

Reliable protection, even with high humidity
Efficient and wear-resistant insulation protection with good heat conductivity
Longer operating life of lubricating greases
Reduced maintenance costs and greater machine availability
The same dimensions and tolerances as standard bearings

Technical properties of the Insutect A Coating

	J20GA	J20GB	J20GI
Type of coating	Outer ring	Outer ring	Inner ring
Breakdown voltage (DC)	3000 V	3000 V	3000 V
Layer thickness	120 μm	200 μm	120 μm
Ohmic resistance	250 MΩ	400 MΩ	250 MΩ
Impedance (6314, f=100 kHz)	273 Ω	428 Ω	583 Ω
Operating environment (dry/humid)	++ \| ++	++ \| ++	++ \| ++
Possible dimensions	70 mm – 800 mm outside diameter	70 mm – 800 mm outside diameter	> 70 mm bore diameter

You can find even more information in our publication on current-insulated bearings.

The Perfect Solution for You

J20GA deep groove ball bearings
Coating: Outer ring

Layer thickness: 120 μm

Recommendation for use:

Industrial electric motors
Find your product
J20GB deep groove ball bearings
Coating: Outer ring

Layer thickness: 200 μm

Recommendation for use:

Rail traction motors

Wind turbines
Find your product
J20GI deep groove ball bearings
Coating: Inner ring
Layer thickness: 120 μm

Recommendation for use: increased demands, bearings with an outside diameter > 240 mm
Contact us

J20GA cylindrical roller bearings
Coating: Outer ring

Layer thickness: 120 μm

Recommendation for use:

Industrial electric motors
Contact us
J20GB cylindrical roller bearings
Coating: Outer ring

Layer thickness: 200 μm

Recommendation for use:

Rail traction motors

Wind turbines
Contact us
J20GI cylindrical roller bearings
Coating: Inner ring
Layer thickness: 120 μm

Recommendation for use: increased demands, bearings with an outside diameter > 240 mm
Contact us

Your dependable partner for any question you may have about current insulation

Don’t leave important decisions about current insulation to chance.

Rely on our years of expertise and protect your investment.

Let our experts advise you

Areas of Application for Our Coated Bearings

Insutect A coated bearings, Schaeffler offers reliable and certified solutions that are specially tailored to the changing requirements of modern industry. Our aluminum oxide coated bearings have already proven themselves in numerous practical applications and offer an optimum solution for demanding applications.

Industrial electric motors
To control the energy efficiency of electric motors by flexibly adjusting the operating speed, industrial electric motors are increasingly being operated in combination with frequency converters. However, frequency converters also cause unwanted, parasitic currents in the motor that can flow through the rolling bearings and damage them. For protection against parasitic currents, Schaeffler offers rolling bearings in its product portfolio with an aluminum oxide coating (J20) that extends the operating life of the rolling bearings considerably.
Solutions for electric motors
Wind
Reliability is an especially important requirement for rolling bearings in wind turbines. Particularly with generator bearings, there is an increased risk of bearing damage due to the passage of current. That is why Schaeffler offers current-insulated rolling bearings with an aluminum oxide coating (J20) in its product portfolio to guarantee the reliability of these bearings.
Solutions for Wind Power
Rail
To prevent bearing damage caused by the passage of current, traction motors almost exclusively use current-insulated bearings. In some cases, however, it is necessary to insulate gearbox or axlebox bearings as well. Insutect A coated bearings are a cost-effective solution, yet they still offer high capacitive resistance and high wear resistance. This means that basic requirements such as cost-effectiveness, reliability, operational safety, sufficient operating life, and low maintenance requirements can be met.
Solutions for Rail Transport

Engineering Tools

Bearing Selection Assistant
The assistant supports you in selecting the right bearing for your design.
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medias interchange
Assists you in determining the Schaeffler bearing designation based on bearing designations from various manufacturers.
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Bearinx
Use these free and powerful calculation tools to design your systems.
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Schaeffler Grease App
Scopri come e quando lubrificare: in modo semplice e gratuito con Schaeffler Grease App
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Lifetime Solutions

Grazie alle soluzioni lifetime solutions Schaeffler, le vostre macchine continueranno a funzionare in futuro con la stessa efficienza di oggi. Dal montaggio iniziale al condition monitoring e alla lubrificazione intelligente: I nostri prodotti, soluzioni e servizi lavorano insieme per prevenire fino al 100% dei guasti alle macchine.

Panoramica del nostro portafoglio lifetime solutions

Matching Lifetime Solutions for Insutect A coated bearings.

Find out here how you can easily extend the operating life of your bearings – whether through condition monitoring or the correct lubrication.

Condition Monitoring
Trasparenza ed efficienza grazie alle soluzioni di assistenza Schaeffler
Per saperne di più
Lubrication
Wide-ranging options for optimum lubrication
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Maintenance Tools
Montaggio, smontaggio e allineamento
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Publications on Our Current-Insulated Bearings

Current-Insulating Bearings - Rolling bearings for prevention of damage due to current passage
Scarica
Insutect Un rivestimento per cuscinetti elettricamente isolati - Protezione affidabile contro i danni causati dal passaggio di corrente
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Hybrid Bearings for Maximum Performance and Reliable Protection - Combining the best of both worlds
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