Bearing 6311/C3 SKF



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Product detailed description
Bearing 6311/C3 SKF – High-Quality Performance and Durability
The bearing 6311/C3 SKF is a precision-engineered deep groove ball bearing designed to provide reliable and efficient operation in a wide range of industrial applications. Manufactured by SKF, a globally recognized leader in bearing technology, this bearing combines superior materials and advanced design to ensure long-lasting performance even under demanding conditions.
With a bore diameter of 55 mm, an outer diameter of 120 mm, and a width of 29 mm, the 6311/C3 SKF bearing is ideally suited for medium to heavy-duty machinery, including electric motors, gearboxes, pumps, and conveyor systems. Its C3 internal clearance allows for greater axial and radial movement, which makes it suitable for applications involving higher operating temperatures or speeds.
Key Features and Benefits
- Robust Construction: Made from high-grade steel, the bearing 6311/C3 SKF offers excellent resistance to wear, corrosion, and fatigue, ensuring a longer service life.
- Optimized Internal Clearance: The C3 clearance provides additional space between the rolling elements and the raceways, reducing friction and heat buildup during high-speed operations.
- Versatile Application: Suitable for various industries such as automotive, manufacturing, and heavy machinery, the 6311/C3 SKF is a reliable choice for both radial and axial load support.
- Precision Engineering: SKF’s quality control guarantees tight tolerances, smooth rotation, and reduced noise levels, enhancing overall machine efficiency.
- Easy Installation: Standard dimensions conforming to ISO norms allow straightforward replacement and integration into existing systems without modifications.
Technical Specifications
- Bore Diameter: 55 mm
- Outer Diameter: 120 mm
- Width: 29 mm
- Type: Deep groove ball bearing
- Internal Clearance: C3 (greater than normal)
- Manufacturer: SKF
Choosing the bearing 6311/C3 SKF ensures superior reliability and efficiency for your machinery, minimizing downtime and maintenance costs. Whether you require bearings for new equipment or replacements, this SKF model guarantees excellent value and performance.

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SKF: Leading Manufacturer of Bearings and Transmission Technology
Company Overview
SKF is a globally recognized manufacturer specializing in high-quality bearings and transmission technology. Founded in 1907 in Gothenburg, Sweden, SKF has established itself as a pioneer in the development of innovative solutions for rotating equipment and industrial applications. With over a century of expertise, SKF continuously drives advancements in reliability, efficiency, and sustainability in its product offerings.
History and Heritage
SKF was founded by Sven Wingquist, who invented the self-aligning ball bearing, revolutionizing the bearing industry. The company quickly expanded from its Swedish roots to become a global leader in bearing technology and related services. SKF’s long-standing tradition of innovation is reflected in its commitment to research and development, ensuring cutting-edge products that meet evolving industrial needs.
Product Range
SKF offers an extensive selection of products designed to optimize machine performance and lifespan. Their product portfolio includes:
- Ball Bearings: Standard, high-precision, and special designs for various applications.
- Roller Bearings: Cylindrical, spherical, and tapered roller bearings engineered for heavy-load conditions.
- Bearing Units and Housings: Solutions designed for easy installation and enhanced reliability.
- Seals and Lubrication Systems: Critical components that protect and extend the operational life of bearings.
- Transmission Components: Including belts, couplings, clutches, and gearboxes.
- Condition Monitoring and Maintenance Services: Tools and technologies such as SKF @ptitude and SKF Enlight for predictive maintenance.
Main Focus and Technological Innovations
SKF’s main focus is delivering high-performance, durable, and energy-efficient solutions that reduce downtime and operational costs for customers worldwide. The company integrates digital technology with traditional mechanical engineering to support Industry 4.0 initiatives. SKF’s innovations include smart bearings equipped with sensors for real-time condition monitoring, advanced lubrication technologies, and bespoke solutions tailored to specific industry challenges.
Application Areas
SKF’s products and services are critical components across a broad spectrum of industries, including:
- Automotive and Transportation
- Aerospace and Defense
- Industrial Manufacturing and Machinery
- Energy Production (Wind, Hydro, and Thermal)
- Mining and Construction Equipment
- Food and Beverage Processing
- Railway and Marine Applications
Company Headquarters
The global headquarters of SKF is located in Gothenburg, Sweden. From this central location, SKF operates through a vast network of manufacturing facilities, sales offices, and technical centers worldwide, serving customers in more than 130 countries.
Conclusion
With its rich heritage, comprehensive product range, and commitment to innovation, SKF remains a trusted partner for industries seeking reliable and advanced bearing and transmission technology solutions to improve performance and sustainability.