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Hybrid Bearings

Precision hybrid bearings offer unique and revolutionary advantages. From electric vehicle motors to blood transfusion pumps, hybrid bearings provide unparallel benefits. Carter has spent decades developing a unique expertise in hybrid bearings to pass on priceless application specific information. Ensuring the upmost quality on raw materials and precision manufacturing, hybrid bearings from Carter have outperformed most major manufacturers in side-by-side performance tests. Explore this page to familiarize yourself with the benefits of hybrid bearings and please reach out to our Bearing Engineers for technical support.

ADVANTAGES

Increased Speed

When using replacing steel balls with silicon nitride balls, the speed capabilities increase between 20-50%. Silicon nitride is roughly 60% lighter than 52100 chrome steel which minimizes internal forces and heat generation.

Increased Lifetime

The service life is increased because silicon nitride is around twice as hard as conventional bearing steel. As the bearing rotates the ceramic material polishes the metallic raceway which enhances performance.

Lubrication Free

The elimination of metal to metal contact alloys these hybrid bearings to operate without lubrication. Although they perform better with the addition of the “thin film” lubrication provides, ceramics do not cause micro-welding adhesion.

Extreme Temperature

Hybrid bearings can operate as low as -273°C (-459°F) or up to 482°C (900°F). Although it’s possible, proper precautions and expertise is required to ensure success.

Minimize Torque

When it’s necessary to minimize start-up and running torque, lubrication-free hybrid bearings exhibit lower inertia and a harder running surface.

Corrosion Resistance

Hybrid bearings are typically highly customizable with access to many different types of ring material and specialist coatings. Commonly standard in 440C stainless steel or provided with UNASIS XtraChrome coatings, hybrid bearings can provide extreme corrosion resistance.

Electrical Insulation

Most ceramic rolling elements are electrical insulators such as silicon nitride. This is ideal for impeding eddy currents in electric motors. 

Increased Speed
Increased Lifetime
Lubrication Free
Extreme Temperature
Minimize Torque
Corrosion Resistance
Electrical Insulation

Bearing Materials

52100 Chrome Steel

Most common bearing material in the world. Martensitic chrome steel is a safe choice for standard applications.

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440C Stainless Steel

The most common stainless steel bearing option. Martensitic stainless steel with reasonable corrosion resistance properties.

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316 Stainless Steel

A great choice for low load and low speed applications that require extreme corrosion resistance. Austenitic stainless steel has many benefits.

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M50 Tool Steel

High temperature and high speed steel common in main shaft engine bearings. This specialist steel could be the option for you.

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BG42®

Extreme high temperature hardness and wear resistance. This steel is comes to the rescue when things heat up.

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CRONIDUR® 30

Nitrogen enriched martensitic stainless steel with extraordinary corrosion resistance and fatigue strength.

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Stellite 6B®

A “go to” for bearings in and around jet engines, high temperatures and corrosion don’t stand a chance.

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Beryllium Copper

A non-ferrous alloy with extreme hardness, electrical and thermal conductivity and impact resistance. A unique choice for special applications.

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Nylon/Polyamide

Machined or moulded, this is a low cost and light weight option suitable for standard applications.

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PEEK

High temperature resistance and vacuum compatibile, this material excels in extreme environments.

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PTFE

A widely used material due to low-cost and chemical resistance.

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Phenolic

Very light weight material which is easily reinforced with complimentary fibres such as fabric or glass which makes it ideal for high speeds.

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Brass

Precision machined components with high durability. Can run at higher temperatures at higher speeds.

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Titanium

Titanium’s weight to strength ratio is second to none. This is a last resort cage material due to cost but could be necessary.

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Full Complement

This arrangement has no physical cage and an increased ball compliment. This increases radial load capacity but drastically reduces axial.

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Spacer Slugs, Toroids & Spacer Balls

Spacer balls are best used to reduce torque in low speed or oscilating applications.

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XtrMD

Molybdenum Disulphide coatings reduce the coefficient of friction and increase speed capabilities.

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XtrTD

Tungsten Disulphide Coatings eliminate the need for liquid lubrication and are commonly used in Aerospace, space, ultra-high vacuum and clean room applications.

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XtrChrome

Thin Dense Chrome Coating increases wear and corrosion resistance of standard chrome steels to outperform stainless steel.

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XtrPoly

Polymer injected and cured lubrication acts as a complete shield while continuously lubrication the bearing.

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Standard Plating

A full range of standard plating is also available such as Cadmium and Zinc-Nickel.

Dry Lubricants

Specialist dry film lubrications can drastically improve bearing performance when chosen properly.

Aerospace Approved Lubrications

Flight critical Aerospace bearings require lubrication with particular temperature characteristics and chemical traceability. A full range of Aerospace Approved Oils and Greases are available.

Vacuum Compatible Lubrications

When used in deep space or in a ultra-high vacuum chamber, vacuum compatible lubrications are highly unique.

Low Torque Lubricants

Controlling the power input to run your mechanical system can be mission critical so low torque options are available.

Food Grade Greases

FDA approved food grade greases are readily available at Carter when requested.

Radiation-Resistance Greases

Nuclear applications call for non-reactive lubrications to minimize the radiation at time of service so they don’t stay “hot”.

Low Temperature Lubrication

Aerospace grade lubrication can be the best option to ensure low temperatures don’t impact bearing performance.

High Temperature Lubrication

A myriad of high temperature options are available at Carter from liquid lubrication to solid fill lubrication.

Waterproof Grease

When working in submersible environments, it’s important to specify a grease that will operate properly and not migrate in application.

COMPARATIVE CHARTS

Temperature

Density

Hardness

Expansion

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Please get in touch with our Sales Engineers to discuss your technical requirements.

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TECHNICAL BEARING SERVICES

Carter adds value with an extensive range of technical bearing services conducted by our world-class bearing engineers.

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