Bearing 31309 J2/QCL7A SKF



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Product detailed description
Bearing 31309 J2/QCL7A SKF: High-Performance Precision Bearing
The bearing 31309 J2/QCL7A SKF is a top-quality spherical roller bearing designed to deliver exceptional reliability and durability in demanding industrial applications. Manufactured by SKF, a global leader in bearing technology, this bearing is engineered to handle heavy radial and axial loads while maintaining smooth operation under tough conditions.
This robust bearing features a spherical roller design that compensates for shaft misalignment and thermal expansion, ensuring optimal performance and long service life. The designation 31309 J2/QCL7A SKF identifies a bearing with specific internal design characteristics and a high-quality cage construction, making it suitable for use in heavy machinery, mining equipment, and other challenging environments.
Key Features and Benefits
- Durable Construction: Made from high-grade steel, the 31309 J2/QCL7A SKF bearing resists wear and corrosion, ensuring extended operational life.
- High Load Capacity: Designed to support significant radial and axial loads, meeting the demands of heavy-duty applications.
- Self-Aligning Capability: The spherical rollers and inner ring design accommodate shaft misalignment, reducing maintenance needs and downtime.
- Precision Engineering: Equipped with a J2 class internal clearance and a QCL7A cage, this bearing offers superior running accuracy and reliability.
- Versatile Application: Ideal for use in industrial gearboxes, conveyor systems, electric motors, and other rotating equipment.
Dimensions and Specifications
The bearing 31309 J2/QCL7A SKF has the following precise dimensions:
- Inside Diameter (bore): 45 mm
- Outside Diameter: 100 mm
- Width: 25 mm
These dimensions ensure compatibility with a wide range of shafts and housings, making installation straightforward and reliable.
Why Choose SKF Bearings?
SKF is renowned worldwide for its innovative bearing technology, quality control, and extensive product range. Choosing the bearing 31309 J2/QCL7A SKF means investing in a product that combines advanced design with rigorous testing to provide outstanding performance and peace of mind in critical applications.
Whether you require a replacement bearing or are specifying components for new machinery, the 31309 J2/QCL7A SKF spherical roller bearing offers the durability and precision necessary to keep your operations running smoothly.

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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.