SKF SPHER ROLLER BEARING 22311 E/VA405

Spherical roller bearings play a key role in the proper operation of equipment subjected to high mechanical loads. Their robust design ensures reliable and continuous performance, even under unstable or demanding operating conditions.

This SKF spherical roller bearing is designed for applications subject to vibration, can handle heavy loads, and can self-align to compensate for misalignment and shaft deflection. This open, seal-less model features a surface-hardened sheet steel cage, an E-type design, and a C4 radial clearance.

Features:
This self-aligning bearing features two symmetrical rows of rollers that ensure excellent load distribution—both radial and axial—in both directions. Designed for vibrating machinery, this particularly robust bearing withstands very high loads, speeds, accelerations, and centrifugal forces. Its open structure, featuring an annular groove and three lubrication holes, facilitates maintenance and extends service life. It has a cylindrical bore for direct mounting on the shaft, thereby simplifying installation. Its E-design—with a shoulderless inner ring, stamped window cages made of hardened steel sheet, and a floating guide ring—improves dynamic stability. These lightweight, wear-resistant metal cages reduce rotational inertia, enabling smooth operation at high speeds. Its C4 radial clearance, meanwhile, enhances the bearing’s ability to withstand thermal expansion, shaft misalignment, and high rotational speeds, thereby reinforcing reliability and operational stability under severe conditions. Their robustness also helps limit mechanical stresses and extend the bearing’s service life, even under intensive conditions.

Maintenance:
To ensure consistent performance, this bearing requires regular relubrication via the devices integrated into the outer ring. The use of a lubricant suitable for high loads and specific operating temperatures is essential. The open design allows for easy visual inspection but requires rigorous maintenance to prevent contamination. Thorough cleaning must be performed if dust or particles are present, prior to any relubrication. This model can withstand temperatures up to 200 °C, provided a high-temperature-stable lubricant is used. It is recommended to regularly monitor lubrication levels to prevent premature wear.

Sealing:
This product is an open bearing, meaning it has no built-in seals. This configuration allows for high-speed operation due to low internal resistance. However, it makes the bearing more vulnerable to contaminants such as dust, moisture, or solid particles. To mitigate this vulnerability, frequent relubrication is recommended to flush out impurities and ensure uniform lubrication. It is crucial to keep the mounting areas clean and protect the working environment to ensure optimal service life.

Brand Information:
SKF (Svenska Kullager-Fabriken) is a Swedish multinational group founded in 1907 and a world leader in the field of mechanical bearings. SKF is one of the world’s leading suppliers of bearings, seals, mechatronic components, lubrication systems, and services designed to improve the reliability of rotating equipment and ensure its performance. SKF products can be used anywhere there is motion. They are used in some 40 industrial sectors, including automotive transportation, aerospace, rail, manufacturing, food and beverage, medical, traditional and renewable energy, and agriculture.

Key Benefits:
- Automatically compensates for shaft misalignment and deflection;
- Withstands high radial and axial loads in both directions;
- Smooth operation at high speeds due to low internal resistance;
- Open design facilitating visual inspection and maintenance;
- Robust metal cages offering excellent wear resistance;
- Simple installation thanks to the cylindrical bore.

Applications:
This type of double-row roller bearing is designed for vibrating applications. It is ideally suited for mechanical transmissions, material handling equipment, and installations in the metallurgical and paper industries. It is also used in textile machinery where precision and stability under load are critical.