Bearing QJ 312 MA SKF



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Product detailed description
Bearing QJ 312 MA SKF
The QJ 312 MA SKF is a high-quality spherical roller bearing designed to deliver exceptional performance in demanding industrial applications. Manufactured by SKF, a globally recognized leader in bearing technology, this bearing is engineered to provide outstanding durability, reliability, and efficiency.
This particular model, QJ 312 MA, features a robust design that accommodates heavy radial loads as well as moderate axial loads in both directions. Its spherical rollers and self-aligning capability make it ideal for applications where shaft misalignment or deflection may occur, ensuring smooth operation and extended service life.
Key features of the QJ 312 MA SKF include:
- Self-aligning spherical roller design for optimal load distribution
- High load carrying capacity and resistance to impact and shock loads
- Seals on both sides (indicated by 'MA') to protect against contamination and retain lubrication
- Precision manufacturing for reduced friction and heat generation
- Durable steel construction for enhanced wear resistance
SKF’s QJ series bearings are widely used in various industrial sectors such as mining, construction, steel production, and heavy machinery due to their robustness and reliable performance under harsh conditions. The QJ 312 MA model is no exception, offering excellent operational stability and maintenance-friendly features.
While exact dimensions for the QJ 312 MA SKF are not universally standardized in public catalogs, it is recommended to consult SKF’s official technical documentation or authorized distributors to ensure compatibility with your specific machinery requirements.
Investing in the QJ 312 MA SKF ensures your equipment benefits from SKF's renowned engineering expertise, reducing downtime and enhancing productivity.

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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.